APOLLO INVESTMENT CORPORATION Investor Presentation

September 2018

Unless otherwise noted, information as of June 30, 2018

It should not be assumed that investments made in the future will be profitable or will equal the performance of the investments shown in this document. Disclaimers, Definitions, and Important Notes

Forward-Looking Statements We make forward-looking statements in this presentation and other filings we make with the Securities and Exchange Commission (“SEC”) within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are subject to substantial risks and uncertainties, many of which are difficult to predict and are generally beyond our control. These forward-looking statements include information about possible or assumed future results of our business, financial condition, liquidity, results of operations, plans and objectives, including information about our ability to generate attractive returns while attempting to mitigate risk. Words such as “believe,” “expect,” “anticipate,” “estimate,” “plan,” “continue,” “intend,” “should,” “may” or similar expressions, are intended to identify forward-looking statements. Statements regarding the following subjects, among others, may be forward- looking: the return on equity; the yield on investments; the ability to borrow to assets; and other risks associated with investing including changes in business conditions and the general economy. The forward-looking statements are based on our beliefs, assumptions and expectations of our future performance, taking into account all information currently available to us. Forward-looking statements are not predictions of future events. These beliefs, assumptions and expectations can change as a result of many possible events or factors, not all of which are known to us. Some of these factors are described in the company’s filings with the SEC. If a change occurs, our business, financial condition, liquidity and results of operations may vary materially from those expressed in our forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. This presentation may contain statistics and other data that in some cases has been obtained from or compiled from information made available by third-party service providers. Past Performance Past performance is not indicative nor a guarantee of future returns, the realization of which is dependent on many factors, many of which are beyond the control of Apollo Global Management, LLC; (“AGM”)( Apollo Investment Management, L.P.; and Apollo Investment Corporation (collectively “Apollo”). There can be no assurances that future dividends will match or exceed historic ones, or that they will be made at all. Net returns give effect to all fees and expenses. Unless otherwise noted, information included herein is presented as of the date indicated on the cover page and may change at any time without notice. Apollo Investment Corporation (the “Corporation”) is subject to certain significant risks relating to our business and investment objective. For more detailed information on risks relating to the Corporation, see the latest Form 10-K and subsequent quarterly reports filed on Form 10-Q. This presentation does not constitute a prospectus and should under no circumstances be understood as an offer to sell or the solicitation of an offer to buy any securities of AINV. Financial Data Financial data used in this presentation for the periods shown is from the Corporation’s Form 10-K and Form 10-Q filings with the SEC during such periods. Unless otherwise indicated, the numbers shown herein are rounded and unaudited. Quarterly and annual financial information for the Corporation refers to fiscal periods. AUM Definition Assets Under Management (“AUM”) refers to the investments AGM manages or with respect to which it has control, including capital it has the right to call from its investors pursuant to their capital commitments to various funds. AGM’s AUM equals the sum of: (i) the fair value of its private equity investments plus the capital that it is entitled to call from its investors pursuant to the terms of their capital commitments plus non-recallable capital to the extent a fund is within the commitment period in which management fees are calculated based on total commitments to the fund; (ii) the net asset value of AGM’s capital markets funds, other than certain senior credit funds, which are structured as collateralized loan obligations or certain collateralized loan obligation and collateralized debt obligation credit funds that have a fee generating basis other than mark-to-market asset values, plus used or available leverage and/or capital commitments; (iii) the gross asset values or net asset values of AGM’s real estate entities and the structured portfolio vehicle investments included within the funds AGM manages, which includes the leverage used by such structured portfolio vehicles; (iv) the incremental value associated with the reinsurance investments of the portfolio company assets that AGM manages; and (v) the fair value of any other investments that AGM manages plus unused credit facilities, including capital commitments for investments that may require pre-qualification before investment plus any other capital commitments available for investment that are not otherwise included in the clauses above. AGM’s AUM measure includes AUM for which it charges either no or nominal fees. AGM’s definition of AUM is not based on any definition of AUM contained in its operating agreement or in any of its Apollo fund management agreements. AGM considers multiple factors for determining what should be included in its definition of AUM. Such factors include but are not limited to (1) its ability to influence the investment decisions for existing and available assets; (2) its ability to generate income from the underlying assets in its funds; and (3) the AUM measures that it uses internally or believes are used by other investment managers. Given the differences in the investment strategies and structures among other alternative investment managers, AGM’s calculation of AUM may differ from the calculations employed by other investment managers and, as a result, this measure may not be directly comparable to similar measures presented by other investment managers.

2 Agenda • Apollo Investment Corporation (AINV) Overview • Investment Strategy & Portfolio Repositioning • Portfolio Review • Conclusion • Appendices

3 Overview

4 Overview of Apollo Investment Corporation (“AINV”)

• Publicly traded (NASDAQ: AINV) business development company (“BDC”) treated as a regulated investment Specialty Finance company (“RIC”) for tax purposes Company Focused on • Primarily provides debt solutions to U.S. middle market companies with a focus on direct origination Lending to US Middle • Market Companies Since IPO in April 2004 and through June 30, 2018, invested $18.5 billion in 443 portfolio companies • $2.50 billion investment portfolio across 96 companies and 25 different industries, spanning a broad range of asset types 1,2

• Externally managed by an affiliate 3 of Apollo Global Management, LLC (“AGM”), a leading alternative asset manager Externally Managed by with approximately $270 billion of AUM 2,4 with expertise in private equity, credit and real estate Apollo Global • Apollo Global Management, LLC was founded in 1990 Management • AINV operates as part of AGM’s Direct Origination Business

Apollo Affiliation Increase in Regulatory Leverage Exemptive Relief to Co-Invest 7

• Apollo affiliation provides • Uniquely positioned to benefit • Expected to improve AINV’s significant benefits from increase in regulatory competitive positioning 6 Competitive • Experienced management team leverage • Expected to increase deal flow Advantages • Broad product offering • Large and diverse direct origination team with joint front engine across AINV and MidCap Financial (“MidCap”) 5

Current Market Market capitalization Dividend yield at market price 9 Dividend yield at NAV 10 Information 8 $1.18 billion 11.0% 9.3%

1 On a fair value basis. 2 As of June 30, 2018 3 Apollo Investment Management, L.P. 4 See definition of AUM at beginning of presentation. 5 MidCap Financial refers to MidCap FinCo Designated Activity Company, a private limited company domiciled in Ireland, and its subsidiaries, including MidCap Financial Services, LLC. MidCap Financial is managed by Apollo Capital Management, L.P., a subsidiary of Apollo Global Management, LLC, pursuant to an investment management agreement between Apollo Capital Management, L.P. and MidCap FinCo Designated Activity Company. 6 The Company announced that on April 4, 2018, its Board of Directors approved the application of the modified asset coverage requirements set forth in new Section 61(a)(2) of the Investment Company Act of 1940, as amended by The Small Business Credit Availability Act (“SBCAA”). As a result, the asset coverage ratio test applicable to the Company will be decreased from 200% to 150%, effective April 4, 2019. 7 On March 29, 2016, the Company received an exemptive order from the SEC permitting greater flexibility to participate in co-investment transactions with certain of its affiliates where terms other than price and quantity are negotiated, subject to the conditions included therein. 8 As of September 7, 2018. 9 Most recent quarterly dividend annualized divided by share price. There can be no assurances that AINV’s dividend will remain at the current level. 10 Most recent quarterly dividend annualized divided by net asset value per share. There can be no assurances that AINV’s dividend will remain at the current level.

5 AINV Benefits from a Strong External Manager

Firm Profile1 Business Segments

Founded: 1990 Credit Private Equity Real Assets AUM: $270 billion $183 bn AUM $72 bn AUM $14 bn AUM • • Drawdown • Opportunistic buyouts Commercial real estate Employees: 1,052 • • Global private equity and debt Liquid / Performing • Distressed buyouts and debt investments • Permanent Capital Vehicles: investments Inv. Professionals: 382 • Performing -Athene -MidCap -BDCs • Corporate carve-outs -Closed-End Funds (CMBS, CRE Loans) Global Offices: 13 • Advisory

Investment Approach Global Footprint

Value-Oriented

Toronto Contrarian Chicago London Frankfurt Los Angeles New York Integrated Investment Platform Madrid Luxembourg Bethesda Delhi Shanghai Houston Opportunistic Across Market Mumbai Hong Kong

Cycles and Capital Structures Bethesda Singapore

Focus on 9 Core Industries

1 As of June 30, 2018. See definition of AUM at beginning of presentation Note: AUM components may not sum due to rounding.

6 Apollo’s Extensive Credit Platform

Apollo Credit $183 billion in AUM & 234 Investment Professionals 1

Structured Apollo Advised Corporate Credit Credit Assets

Performing Liquid Illiquid Direct European Structured Athene Asset Credit Opportunistic Opportunistic Origination Principal Credit Management Credit Credit Finance & Other Advised Assets ~$20 billion in AUM incl. sidecars

Encompasses MidCap, Additional capacity in certain Opportunistic Apollo Investment funds for off-the-run, directly Corporation (AINV) and CION sourced corporate loans

Liquid / Performing Permanent Capital Drawdown Alternative Funds Funds $48 billion in AUM $109 billion in AUM $26 billion in AUM (includes Performing and Hedge Funds, (includes Athene, MidCap, and publicly traded (includes Opportunistic, European and Structured Managed CLOs, and SMAs) funds) Credit Funds, and SMAs)

1 As of June 30, 2018. Please refer to the definition of AUM at the beginning of this presentation.

7 Apollo’s Dedicated Direct Origination Vehicles

Apollo Investment Corporation MidCap CION Investment Corporation 2

• Business development company (BDC) • Full-service finance company focused on • BDC under the Investment Company Act under the Investment Company Act of directly sourced middle market senior of 1940 that has elected to be treated as 1940 and regulated investment company debt a RIC for tax purposes (RIC) for tax purposes • Business lines in asset-back loans, • Focused on providing • Focused on providing senior debt leveraged loans, real estate and venture solutions to US middle market companies solutions to US middle market companies lending • Non-traded • Publicly-listed on NASDAQ Global Select • Privately-held including by investors Market affiliated with Apollo Global • $1.8 billion assets across 157 companies 1

• $2.50 billion investment portfolio across • $8.2 billion in funded assets across 503 • Established 2012 96 companies 1 distinct positions 1

• Established 2004 • Established 2008

Additional capacity in select opportunistic credit accounts

1 As of June 30, 2018. 2 Apollo Investment Management, L.P. (AIM), the investment adviser to Apollo Investment Corporation, is a non-controlling member of CION Investment Management, LLC (CIM), the investment adviser to CION Investment Corporation (CION). AIM performs sourcing services for CIM, which include, among other services, (i) identifying and providing information about potential investment opportunities for approval by CIM’s investment committee; (ii) providing (a) trade and settlement support; (b) portfolio and cash reconciliation; (c) market pipeline information regarding syndicated deals, in each case, as reasonably requested by CIM; and (d) monthly valuation reports and support for all broker-quoted investments. AIM has a limited role as a member of CIM and does not provide advice, evaluation, or recommendation with respect to the CION’s investments. All of CION’s investment decisions are the sole responsibility of, and are made at the sole discretion of, CIM.

8 Apollo’s Direct and Specialty Origination Platform Encompasses an array of origination verticals and a comprehensive suite of products

Origination Channels Product Capabilities

Leveraged Lending • Revolving Loans • Senior First Lien Term Loans • Financial Sponsors • Senior Stretch Loans / Unitranche Loans - Unified calling effort across Apollo • Second Lien Term Loans - Ability to offer full suite of products increase relevancy • Delayed Draw Term Loans • Wall Street • Asset Based Debt - Leverage Apollo’s deep relationship with Wall Street intermediaries • DIP Financing - Apollo buying power provides good access - Potential source of liquidity that may be used to fund core investments • Non-Sponsor

Niche Markets

- Life Sciences Lending - Lender Finance - Aircraft Leasing

9 Competitive Advantages

. Extensive origination team on par with any peer in the market

. Full-service product suite

. Significant expertise in niche verticals with flexible product set

. Significant scale with permanent capital AUM

. Well positioned to participate in large commitments while maintaining relatively small hold sizes given AINV’s receipt of exemptive relief to co-invest in 2016 1

. AINV is uniquely positioned to increase leverage 2 with a prudent lower risk portfolio growth strategy given the robust volume of senior floating rate assets already originated by the Apollo Direct Origination platform

Note: Reflects the view of Apollo. 1 On March 29, 2016, the Company received an exemptive order from the SEC permitting greater flexibility to participate in co-investment transactions with certain of its affiliates where terms other than price and quantity are negotiated, subject to the conditions included therein. 2 The Company announced that on April 4, 2018, its Board of Directors approved the application of the modified asset coverage requirements set forth in new Section 61(a)(2) of the Investment Company Act of 1940, as amended by the “SBCAA”. As a result, the asset coverage ratio test applicable to the Company will be decreased from 200% to 150%, effective April 4, 2019.

10 Investment Strategy & Portfolio Repositioning

11 AINV Plan for Reduction in Asset Coverage Requirement On April 4, 2018, AINV’s Board approved the increase in allowable leverage as permitted under the Small Business Credit Availability Act (“SBCAA”) which will go into effect on April 4, 2019 Key Elements of Our Plan

. Incremental investment capacity will be used to significantly increase AINV’s exposure to senior first lien floating leveraged loans sourced by Apollo’s Direct Origination platform with the following characteristics1:

– Leverage range of 4.0x to 5.5x – Floating rate spreads ~500 to 700 basis points – ~ 1 to 1.5% position sizes

. Prudently increase leverage over the next 18 to 24 months with a target debt-to-equity range of 1.25x – 1.40x

. Reduce exposure to remaining non-core assets

. Tangible improvements to the quality of AINV’s assets

. Base management fee decreases to 1% on assets financed with leverage over 1.0 debt-to-equity

We believe that the ability to increase our leverage provides a unique opportunity for AINV given the robust volume of senior floating rate assets already originated by the Apollo Direct Origination platform

1 Subject to change at any notice.

12 Plan Focuses on Lower Risk Assets Majority of incremental assets expected to be first lien floating rate loans with leverage of 4.0-5.5x at L+500 - 700 basis points June 30, 2018 ` Original Target Revised Target Actual Leverage and Portfolio Size AINV Debt-to-Equity Ratio 0.79x 0.65x – 0.70x 1.25x – 1.40x Portfolio Size (in billions) $2.5 $2.3 - $2.4 $3.3 - $3.4

Asset Mix (%) First Lien Corporate Loans 1 27 50-55 ~ 80-85 ` Second Lien Corporate Loans 28 30-35 < 10 Merx Aviation 20 15 ~10 – 15 Unsecured Corporate Loans 2 4 0 0 Non-Core and Legacy 20 < 10 < 5

Other Key Metrics Portfolio Asset Yield ~10.7% 10.0-10.5% 9.0-9.5% Weighted Average Spread ~785 bps ~750 to 800 bps ~600 to 650 bps Weighted Average Net Leverage 5.6x 5.25x 4.2x Net Leverage Range of Incremental Assets n/a 4.5x – 5.5x 4.0x – 5.5x Projected Loss Rate 3 n/a 65-70 bps 35-40 bps % of Investments Per Co-Investment Order 4 24% 50%-60% 70%-80%

1 Excludes Merx Aviation and non-core and legacy assets 2 For 6/30/18, includes preferred and common equity 3 See Appendix for projected loss rate estimate. 4 On March 29, 2016, the Company received an exemptive order from the SEC permitting greater flexibility to participate in co-investment transactions with certain of its affiliates where terms other than price and quantity are negotiated, subject to the conditions included therein.

13 Fee Structure Closely aligns the incentives of the manager with the interests of shareholders

• The base management fee has been permanently reduced 1 from an annual rate of 2.0% of the Company’s gross assets to - 1.5% of gross assets up to 1.0x debt-to-equity - 1.0% of gross assets in excess of 1.0x debt-to-equity 2

• The incentive fee on income has been revised to include a total return requirement - Rolling twelve quarter look-back beginning from April 1, 2018 3

The combination of AINV’s new fee structure and active stock repurchase program demonstrate our commitment to creating value for our shareholders

1 Effective April 1, 2018. 2 The Company announced that on April 4, 2018, its Board of Directors approved the application of the modified asset coverage requirements set forth in new Section 61(a)(2) of the Investment Company Act of 1940, as amended by the SBCAA. As a result, the asset coverage ratio test applicable to the Company will be decreased from 200% to 150%, effective April 4, 2019. 3 The calculation of the incentive fee with the total return requirement will begin on January 1, 2019. The incentive fee rate and performance threshold remain 20% and 7% respectively. There is no change to the catch-up provision. For the period between April 1, 2018 through December 31, 2018, the incentive fee rate will be waived to15%, subject to the 7% annualized performance threshold.

14 Significant Progress Repositioning Portfolio Deployed significant capital into core strategies 1 and meaningfully reduced exposure to non-core strategies 2

Portfolio Exposure to Core vs. Non-Core and Legacy Strategies 3

As of June 30, 2016 As of June 30, 2018

20%

41%

59%

80%

Core Strategies Non-Core and Legacy Strategies

Over the past 8 quarters, invested $1.8 billion in core strategies 4

1 Core strategies include corporate lending, aviation, life sciences, asset based and lender finance. 2 Non-core strategies include oil & gas, structured credit, renewables, shipping and commodities 3. On a fair value basis. 4. From July 1, 2016 through June 30, 2018.

15 Significant Progress Reducing Non-Core Assets 1

Non-Core Assets ($ in millions) 1,000 $907 or 35% of portfolio 900

800 $238 (9%) 700 -53% 600 $133 (5%) 500 $430 or 17% of portfolio 400 $232 $25(1%) (9%) $154 300 (6%) 200 $69 (3%) $304 100 (12%) $181 (7%) 0 6/30/2016 6/30/2018

Oil & Gas Renewables Shipping Structured Credit

Over the past 8 quarters, reduced exposure to non-core strategies by $477 million 4

1 Non-core strategies include oil & gas, structured credit, renewables, shipping and commodities. On a fair value basis.

16 Emphasis on First Lien Debt

Portfolio Exposure to First Lien Debt 1

As of June 30, 2016 As of June 30, 2018

40% 45% 55% 60%

First Lien Secured Debt

Second Lien Secured Debt, Unsecured Debt, Structured Products and Other, Preferred Equity, Common Equity / Interests and Warrants

Over the past 8 quarters, 59% of total deployment was in first lien debt 2

1. On a fair value basis. 2. From July 1, 2016 through June 30, 2018.

17 Emphasis on Floating Rate Debt

Portfolio Exposure to Floating Rate Debt 1 2

As of June 30, 2016 As of June 30, 2018

6% 23%

77% 94%

Floating Rate Debt Fixed Rate Debt

Over the past 8 quarters, 100% of total deployment was in floating rate debt 2

1. On a fair value basis. 2 The interest type information is calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping, commodities and investments on non- accrual status. 3. From July 1, 2016 through June 30, 2018

18 Investments Made Pursuant to Co-Investment Order 1 We believe our ability to co-invest with other Apollo managed capital makes us one of the largest market participants that is well positioned to make large commitments

Co-Investment Deployment Over Past 8 Quarters 2 Co-Investments Outstanding 3

43% of total deployment has been in 24% of the portfolio is in investments made investments made pursuant to co- pursuant to co-investment order investment order

24% 24%

7% 57% 11% 1% 76%

Leveraged Loans Life Sciences Asset Based Lender Finance Non Co-investment Order Co-Investments Non-Order Co-Investments

1. On March 29, 2016, the Company received an exemptive order from the SEC permitting greater flexibility to participate in co-investment transactions with certain of its affiliates where terms other than price and quantity are negotiated, subject to the conditions included therein. 2. From July 1, 2016 through June 30, 2018. 3. As of June 30, 2018. On a fair value basis.

19 Portfolio Review

20 Portfolio Snapshot

Portfolio Key Statistics1 Portfolio by Security Type1,2

Investment Portfolio2 $2.50 bn 8% # of Portfolio Companies 96 1% 3% 4% Weighted Average Yield3 10.7%

% Floating Rate2,4 94% 55% 2,5 % Sponsored 81% 30% Average Company Exposure2 $26.0 mn

Median Company Exposure2 $16.9 mn

Median EBITDA6 $73 mn First Lien Debt Second Lien Debt 6 Net Leverage Through AINV Position 5.6 x Unsecured Debt Structured Products and Other Interest Coverage6 2.4 x Preferred Equity Common Equity and Warrants

Portfolio by Industry1,2 Portfolio by Strategy1,2,9

Aviation and Consumer Transport 3% Business Services 9% Healthcare & Pharmaceuticals

High Tech Industries 16.8% 20.1% 17% Energy – Oil & Gas 2.5% 51% 2.9% Transportation – Cargo, Distribution 3.0% Energy – Electricity 3.4% 16.8% 20% Telecommunications 6.6% Aerospace & Defense 7.3% 8.4% 12.2% Chemicals, Plastics & Rubber Corporate Lending Aircraft Leasing Non-Core Life Sciences, Asset Based and Lender Finance Legacy Other 8

1 As of June 30, 2018. 2 On a fair basis. 3 On total debt portfolio. At amortized cost, exclusive of investment on non-accrual status. 4 The interest type information is calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping, commodities and investments on non-accrual status. 5 The sponsored/non-sponsored percentages are calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping and commodities. 6 Current. 8 Other includes Existing specialty verticals includes oil & gas, renewables, shipping and structured credit. 9 Non-core strategies include oil1 & gas, structured credit, renewables, shipping and commodities

21 Merx Aviation is Well-Diversified Represents 20.1% of AINV’s investment portfolio 1, 2

Merx Portfolio1 Aircraft by Type1,3 Aircraft by Region1,3

2% 91 aircraft 2%2% 2% 3% 3% 1%1% 3% 3% 10% 13 aircraft types 4% 32% 38% 4% 47 lessees in 26 countries 5% 5% 23%

Weighted average age of aircraft 29% 28% ~8.4 years B737-800 A320-200 A321neo A321-200 Asia Europe North America B787-8 B777-200F B737-700 A319-100 Weighted average lease Latin America Africa Australia E-195 A330-200 E-190 B737-900ER ~5.2 years E-170 Middle East

Staggered Lease Maturity1 Aircraft Value by Lessee1,2 Revenue by Lessee1,4

14 14 14 0.6% 0.0% 14 0.6% 0.7% 12 0.8% 30 Lessees 0.8% 0.9% 0.8% 12 9% 1.0% 0.8% 8.0% 0.9% Each < 2% 1.2%0.9% 7% 0.8% 7.9% 1.2%1.2% 0.9% 10 9 1.3% 1.3% 8 1.4% 6% 1.5% 5.0% 1.5% 8 7 1.6% 36% 1.6% 5.0% 4% 1.7% 6 1.7% 5% 1.7% 4.9% 4 1.8% 1.9% 4.1% 4 3 3 3 4% 1.9% 2.0% 2.3% 4.0% 4% 4% 2.6% 3.6% 2 2.9% 3.3% 2% 3% 3.1%3.2%3.2% 2% 3% 0 2% 2% 2% 3% 2% 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029

# of leases maturing by year 47 Lessees 47 Lessees

1 As of June 30, 2018 2 On a fair value basis. 3 Based on base value. 4 Revenue for next four quarters. For more information about Merx, please visit www.merxaviation.com.

22 Portfolio Concentration

Top Ten Portfolio Companies1 ($ in millions) Top Ten Industries1 ($ in millions)

% of % of Rank Portfolio Company Fair Value Rank Industry Fair Value Portfolio Portfolio 1 Merx Aviation Finance, LLC $503 20.1% 1 Aviation and Consumer Transport $503 20.1% 2 Spotted Hawk 111 4.4% 2 Business Services 418 16.8% 3 Dynamic Product Tankers (Prime), LLC 82 3.3% 3 Healthcare & Pharmaceuticals 305 12.2% 4 U.S. Security Associates Holdings, Inc. 80 3.2% 4 High Tech Industries 210 8.4% 5 MSEA Tankers LLC 72 2.9% 5 Energy – Oil & Gas 181 7.3% Glacier Oil & Gas Corp. (f/k/a Miller Energy 6 Transportation – Cargo, Distribution 164 6.6% 6 62 Resources, Inc.) 2.5% 7 Energy – Electricity 85 3.4% 7 Skyline Data, News and Analytics LLC (Dodge) 53 2.1% 8 Telecommunications 75 3.0% 8 Capital Carbon SPE I LLC) 46 1.9% 9 Aerospace & Defense 73 2.9% 9 Genesis Healthcare, Inc. 44 1.8% 10 Chemicals, Plastics & Rubber $62 2.5% 10 TriTech $43 1.7% Top Ten Total $2,076 83.2% Top Ten Total $1,096 43.9% Other $420 16.8% Other $1,400 56.1% Total Portfolio $2,495 100.0% Total Portfolio $2,495 100.0%

Average Position Size, at fair value ($ in millions)

35.0 $28.8 $27.1 $27.4 28.0 $25.0 $26.0

21.0

14.0

7.0

0.0 Jun-17 Sep-17 Dec-17 Mar-18 Jun-18

1 Top ten portfolio companies and top ten industries based on market value as of June 30 2018.

23 Portfolio Company Credit Quality

Net Leverage through AINV Position Total Cash Interest Coverage Median LTM EBITDA (weighted average by cost) (weighted average by cost)

$100 8.00x 4.00x

$90 3.50x 7.00x $80 3.00x $70 6.00x 2.50x $60

$50 5.00x 2.00x

$40 1.50x 4.00x $30 1.00x $20 3.00x 0.50x $10

$0 2.00x 0.00x Mar-17 Jun-17 Sep-17 Dec-17 Mar-18 Mar-17 Jun-17 Sep-17 Dec-17 Mar-18 Mar-17 Jun-17 Sep-17 Dec-17 Mar-18

At Close Current At Close Current At Close Current

Source: Company data. Includes all portfolio company investments except structured products, common equities, warrants and investments on non-accrual status. Also excludes select investments where debt-to-EBITDA is not a relevant or appropriate metric, or data is not available.

24 Conclusion

25 Reasons to Own AINV

1 Origination platform is highly differentiated versus other market participants

2 Uniquely positioned to benefit from increase in regulatory leverage 1

3 Receipt of exemptive relief to co-invest enhances competitive positioning 2

Plan for reduction in asset coverage requirement expected to deliver consistent shareholder returns and a stable 4 NAV

5 Well-positioned to benefit from rising interest rates

6 Strong balance sheet and diverse funding sources

7 Fee structure closely aligns the incentives of the manager with the interests of shareholders

8 Active share repurchase program

Notes: Reflects the views of Apollo. For detailed information on risks relating to AINV, see the latest 10-K and subsequent quarterly reports on Form 10-Q, filed with the SEC. 1 The Company announced that on April 4, 2018, its Board of Directors approved the application of the modified asset coverage requirements set forth in new Section 61(a)(2) of the Investment Company Act of 1940, as amended by the SBCAA. As a result, the asset coverage ratio test applicable to the Company will be decreased from 200% to 150%, effective April 4, 2019. 2 On March 29, 2016, the Company received an exemptive order from the SEC permitting greater flexibility to participate in co-investment transactions with certain of its affiliates where terms other than price and quantity are negotiated, subject to the conditions included therein.

26 Appendices

27 Specialty Niches

• Secured loans to manufacturing, distribution, retail and services companies • Core product consists of revolvers advancing against accounts receivable and inventory; will selectively include term loans against fixed assets or as supported by cash flow Asset Based • High-touch asset class requiring liquidity for daily revolver fundings, collateral evaluation and diligence expertise, borrowing base monitoring capabilities and complex cash dominion structures • Leverages MidCap’s in-place portfolio and collateral monitoring infrastructure

• Low loan-to-value loans, covered by material asset values and cash on hand, made to borrowers in product development (e.g., biotech companies) or early commercialization • Enterprise value loans • Niche market with what we believe to be disproportionate risk reward – almost no historical losses across Life Sciences market • Typically have multiple sources of exit including strong equity support, well funded balance sheets, and liquidation value • No underwriting of science – only of cash support and development timeline

• Senior secured facilities made to lenders in various industries (consumer and commercial) secured by their underlying collateral • Typically benefit from multiple levels of credit support and protection in addition to support of underlying borrowers Lender Finance • Defined eligibility criteria or loan-by-loan approval, borrowing base structure with ability to remove specific assets, and corporate and/or personal recourse with various restrictive covenants • Highly structured transactions skewing towards larger commitments ($25+ million) to provide diversification of underlying collateral • Significant opportunities exist to fill the capital void left by large banks exiting and descaling in this asset class

28 Financial Highlights

($ in thousands, except per share data) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Operating Results1 Net investment income $31,547 $31,943 $33,966 $34,157 $33,320 Net realized and change in unrealized gains (losses) from investments and foreign currencies (18,297) (11,316) (22,342) (2,370) (4,539) Net realized loss on extinguishment of debt – – (5,790) – – Net increase in net assets resulting from operations $13,251 $20,627 $5,834 $31,787 $28,781

Net investment income per share $0.15 $0.15 $0.16 $0.16 $0.15 Net realized and change in unrealized gains (losses) from investments and foreign currencies p/s ($0.08) ($0.05) ($0.10) ($0.01) ($0.02) Net realized loss on extinguishment of debt per share – – ($0.03) – –

Earnings per share $0.06 $0.10 $0.03 $0.14 $0.13

Distribution recorded per common share $0.15 $0.15 $0.15 $0.15 $0.15

Select Balance Sheet and Other Data

Investment portfolio (at fair value) $2,495,459 $2,248,047 $2,352,562 $2,360,290 $2,416,579 Debt outstanding $1,102,679 $789,846 $875,165 $864,906 $920,674 Net assets $1,391,166 $1,418,086 $1,441,050 $1,472,600 $1,477,624

Net asset value per share $6.47 $6.56 $6.60 $6.72 $6.73 Debt-to-equity ratio 0.79 x 0.56 x 0.61 x 0.59 x 0.62 x

Net leverage ratio2 0.78 x 0.57 x 0.62 x 0.59 x 0.62 x

Weighted average shares outstanding 215,914,717 216,700,552 218,550,180 219,519,803 219,694,654 Shares outstanding 214,925,294 216,312,096 218,255,954 219,034,354 219,694,654

Number of portfolio companies, at period end 96 90 86 87 84

Weighted Average Yields, at period end

Secured debt3 10.7% 10.7% 10.5% 10.3% 10.2% Unsecured debt3 11.4% 11.3% 11.2% 11.2% 11.1% Total debt portfolio3 10.7% 10.7% 10.5% 10.3% 10.3% Total portfolio4 9.7% 9.6% 9.6% 9.7% 9.7%

1 Numbers may not sum due to rounding. 2 The Company’s net leverage ratio is defined as debt outstanding plus payable for investments purchased, less receivable for investments sold, less cash and cash equivalents, less foreign currencies, divided by net assets. 3 On a cost basis. Exclusive of investments on non-accrual status. 4 On a cost basis. Inclusive of all income generating investments, non-income generating investments and investments on non-accrual status.

29 Summary Investment Activity

($ in thousands) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Portfolio Activity1 Investments made $358,950 $243,329 $198,355 $265,439 $342,036

Investments sold (14,832) (119,302) (48,084) (11,703) (9,949)

Net investment activity before repayments $344,117 $124,027 $150,271 $253,737 $332,087

Investments repaid (93,786) (238,131) (156,716) (328,096) (241,998)

Net investment activity $250,331 ($114,104) ($6,445) ($74,359) $90,089

Number of portfolio companies, at beginning of period 90 86 87 84 86

Number of new portfolio companies 7 8 8 12 11

Number of exited portfolio companies (1) (4) (9) (9) (13)

Number of portfolio companies, at period end 96 90 86 87 84

Number of investments in existing portfolio companies 20 19 12 11 11

Yield on Activity2 Yield on investments made 9.4% 9.7% 9.9% 10.0% 10.3%

Yield on debt sales and repayments 9.4% 9.6% 10.2% 10.3% 11.3%

1 Numbers may not sum due to rounding. 2 Yield on activity is for debt investments and excludes select short-term trades and investments on non-accrual status.

30 Quarterly Investment Activity

Investment Activity ($ in millions) Total Debt Portfolio Yield1,2

10.3% 10.3% 10.5% 10.7% 10.7% $342 $359 $265 $243 $198

($10) ($12) ($48) ($15) ($119) ($94) ($157) ($242) ($328) ($238)

Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 New Investments Sales Repayments

Net Investment Activity ($ in millions) Yield on Investment Activity2,3 11.4% 10.8% 11.2% $250 10.3% 10.2%

10.3% 10.2% 10.0% 9.9% 9.7% 9.4% 9.4% 9.3% 9.1% $90 ($6) 7.6%

Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 ($74) ($114) Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 New Investments Sales Repayments

1 Weighted average yield on total debt portfolio on a cost basis at period end, exclusive of investments on non-accrual status. 2 Change in terms on investments may impact the weighted average yield of the total debt portfolio but are not reflected in new, sold or repaid investments. 3 Yield on activity is for debt investments and excludes select short-term trades and investments on non-accrual status.

31 Detailed Quarterly Investment Activity

($ in thousands) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Purchases1 First lien2 $319,224 $186,265 $108,008 $111,229 $236,735 Second lien 39,323 49,426 89,544 152,972 103,819 Total secured debt 358,547 235,691 197,552 264,201 340,554 Unsecured debt 0 0 – – – Structured products and other 43 47 – – – Preferred equity 0 333 – – – Common equity/interests and warrants 360 7,258 803 1,238 1,481 Total Purchases $358,950 $243,329 $198,355 $265,439 $342,036

Yield at Cost on Debt Purchases3 First lien 9.3% 9.5% 9.3% 9.3% 10.3% Second lien 10.4% 10.3% 10.7% 10.4% 10.3% Total secured debt 9.4% 9.7% 9.9% 10.0% 10.3% Unsecured debt N/A N/A N/A N/A N/A Preferred equity N/A N/A N/A N/A N/A Yield at Cost on Debt Purchases 9.4% 9.7% 9.9% 10.0% 10.3%

Sales and Repayments1 First lien2 $93,006 $228,989 $79,659 $128,848 $136,063 Second lien 8,728 91,255 90,981 140,034 53,838 Total secured debt 101,735 320,243 170,639 268,882 189,901 Unsecured debt 2,453 2,060 55 55,000 0 Structured products and other 92 27,349 27,292 8,961 33,166 Preferred equity (30) 0 0 0 0 Common equity/interests and warrants 4,369 7,780 6,814 6,956 28,879 Total Sales and Repayments $108,618 $357,433 $204,800 $339,799 $251,947

Yield at Cost on Debt Sales and Repayments3 First lien 9.3% 9.0% 10.0% 10.4% 12.0% Second lien 10.0% 11.2% 10.5% 9.9% 9.7% Total secured debt 9.3% 9.6% 10.2% 10.1% 11.3% Unsecured debt 10.8% 10.2% 13.0% 11.0% N/A Preferred equity N/A N/A N/A N/A N/A Yield at Cost on Debt Sales and Repayments 9.4% 9.6% 10.2% 10.3% 11.3%

Yield at Cost on Sales 11.2% 7.6% 10.2% 9.3% 9.4% Yield at Cost on Debt Repayments 9.1% 10.8% 10.2% 10.3% 11.4% 1 Numbers may not sum due to rounding. 2 First lien purchases include revolver drawdowns; first lien sales and repayments includes revolver repayments. 3 Yield on activity is for debt investments and excludes select short-term trades and investments on non-accrual status.

32 Detailed Quarterly Investment Activity (Continued)

($ in thousands) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Investment Activity, excluding Merx Aviation and Revolver Activity Deployment $199,714 $157,985 $165,066 $234,414 $189,917 Sales ($14,832) ($119,302) ($48,084) ($11,703) ($9,949) Repayments ($13,464) ($157,061) ($119,070) ($276,601) ($153,579) Net Investment Activity $171,418 ($118,378) ($2,087) ($53,890) $26,389

Merx Aviation Deployment $91,000 $18,500 $5,800 $10,000 $105,400 Repayments - ($25,000) ($26,000) ($37,334) ($65,650) Net funding into Merx $91,000 ($6,500) ($20,200) ($27,334) $39,750

Revolvers, excluding Merx Aviation Deployment $68,236 $66,844 $27,489 $21,025 $46,718 Repayments ($80,322) ($56,070) ($11,646) ($14,161) ($22,769) Net funding on revolvers ($12,086) $10,774 $15,843 $6,864 $23,950

Total Deployment $358,950 $243,329 $198,355 $265,439 $342,035 Sales ($14,832) ($119,302) ($48,084) ($11,703) ($9,949) Repayments ($93,786) ($238,131) ($156,716) ($328,096) ($241,998) Net Investment Activity $250,331 ($114,104) ($6,445) ($74,359) $90,089

Note: Numbers may not sum due to rounding.

33 Net Asset Value

($ in thousands, except per share data) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18 Jun-18 Mar-18 Dec-17 Sep-17 Jun-17 Per Share NAV, beginning of period $6.56 $6.60 $6.72 $6.73 $6.74 Net investment income 0.15 0.15 0.16 0.16 0.15 Net realized and change in unrealized gain (loss) (0.08) (0.05) (0.10) (0.01) (0.02) Net realized loss on extinguishment of debt – – (0.03) – – Net increase (decrease) in net assets resulting from operations 0.06 0.10 0.03 0.14 0.13 Repurchase of common stock 0.01 0.01 0.00 0.00 – Distribution recorded (0.15) (0.15) (0.15) (0.15) (0.15) NAV, end of period $6.47 $6.56 $6.60 $6.72 $6.73

Total NAV, beginning of period $1,418,086 $1,441,050 $1,472,600 $1,477,624 $1,481,797 Net investment income 31,547 31,943 33,966 34,157 33,320 Net realized and change in unrealized gains (losses) (18,297) (11,316) (22,342) (2,370) (4,539) Net realized loss on extinguishment of debt – – (5,790) – – Net increase (decrease) in net assets resulting from operations 13,251 20,627 5,834 31,787 28,781 Repurchase of common stock (7,877) (11,145) (4,645) (3,956) 0 Distributions recorded (32,293) (32,447) (32,738) (32,855) (32,954) NAV, end of period $1,391,166 $1,418,086 $1,441,050 $1,472,600 $1,477,624

Net Asset Value Per Share

$6.73 $6.72 $6.60 $6.56 $6.47

Jun-17 Sep-17 Dec-17 Mar-18 Jun-18

Note: Numbers may not sum due to rounding.

34 Portfolio as of June 30, 2018

By Asset Class1 Fixed Rate vs. Floating Rate1,2

First lien debt 8% 6% 3% 4% Second lien debt

Unsecured debt

55% 30% Structured products and other

Preferrred equity, common 94% equity/interests and warrants

Fixed Rate Assets Floating Rate Assets

By Industry1,3 Sponsored vs. Non-sponsored1,4

16.8% 20.1%

2.5% 19% 2.9% 3.0% 3.4% 16.8% 6.6%

7.3% 12.2% 8.4% 81%

Aviation and Consumer Transport Busi ness Services Healthcare & Pharmaceuticals High Tech Industri es Energy – Oil & Gas Transportation – Cargo, Distribution Sponsored Non-sponsored Energy – Electricity Telecommunications Aerospace & Defense Chemi cals, Plastics & Rubber Other

1 On a fair value basis. 2 The interest type information is calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping, commodities and investments on non-accrual status. 3 Other consists of: Diversified Investment Vehicles, Banking, Finance, Real Estate; Manufacturing, Capital Equipment; Food & Grocery; Advertising, Printing & Publishing; Automotive; Consumer Goods – Durable; Utilities – Electric; Consumer Goods – Non-durable; Beverage, Food & Tobacco; Consumer Services; Insurance; Containers, Packaging & Glass; Media – Diversified & Production; Hotel, Gaming, Leisure, Restaurants; and Metals & Mining. 4 The sponsored/non-sponsored percentages are calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping and commodities.

35 Portfolio Composition

($ in thousands) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Portfolio Composition, measured at fair value ($) First lien $1,363,867 $1,131,942 $1,169,317 $1,142,148 $1,140,215 Second lien 737,124 706,011 743,299 750,710 734,946 Total secured debt $2,100,991 $1,837,953 $1,912,616 $1,892,857 $1,875,161 Unsecured debt 90,599 103,166 107,678 107,558 162,028 Structured products and other 67,373 67,968 97,884 124,269 135,863 Preferred equity 31,401 31,053 25,690 25,780 25,754 Common equity/interests and warrants 205,095 207,908 208,694 209,826 217,772 Total investment portfolio $2,495,459 $2,248,047 $2,352,562 $2,360,290 $2,416,579

Portfolio Composition, measured at fair value (%) First lien 55% 50% 50% 48% 47% Second lien 30% 31% 32% 32% 30% Total secured debt 84% 82% 81% 80% 78% Unsecured debt 4% 5% 5% 5% 7% Structured products and other 3% 3% 4% 5% 6% Preferred equity 1% 1% 1% 1% 1%

Common equity/interests and warrants 8% 9% 9% 9% 9%

Portfolio Composition by Strategy, measured at fair value (%)

Core strategies1 80% 77% 74% 73% 74% Non-core strategies2 17% 19% 22% 23% 23% Legacy & Other 3% 4% 4% 4% 4%

Interest Rate Type, measured at fair value3 Fixed rate % 6% 8% 8% 9% 14% Floating rate % 94% 92% 92% 91% 86%

Sponsored / Non-sponsored, measured at fair value4 Sponsored % 81% 81% 82% 81% 83%

Non-sponsored % 19% 19% 18% 19% 17%

Note: Numbers may not sum due to rounding. 1 Core strategies include corporate lending, aviation, life sciences, asset based and lender finance. 2 Non-core strategies include oil & gas, structured credit, renewables, shipping and commodities. 3 The interest type information is calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping, commodities and investments on non-accrual status. 4 The sponsored/non-sponsored percentages are calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping and commodities.

36 Credit Quality As of June 30, 2018, 3.0% of total investments at amortized cost, or 2.3% of total investments at fair value, were on non-accrual status. ($ in thousands) 1Q'19 4Q'18 3Q'18 2Q'18 1Q'18

Jun-18 Mar-18 Dec-17 Sep-17 Jun-17

Investments on Non-Accrual Status Non-accrual investments at amortized cost $75,671 $75,671 $57,928 $46,199 $46,430

Non-accrual investments/total portfolio, at amortized cost 3.0% 3.3% 2.4% 1.9% 1.9%

Non-accrual investments at fair value $57,646 $51,426 $35,175 $30,204 $27,458 Non-accrual investments/total portfolio, at fair value 2.3% 2.3% 1.5% 1.3% 1.1%

Portfolio Company Credit Metrics1 Net Leverage (Close) 5.5 x 5.5 x 5.4 x 5.5 x 5.4 x

Net Leverage (Current) 5.6 x 5.5 x 5.5 x 5.5 x 5.5 x

Interest Coverage (Close) 2.4 x 2.5 x 2.7 x 2.7 x 2.7 x

Interest Coverage (Current) 2.3 x 2.5 x 2.7 x 2.7 x 2.7 x

Industry Cost Fair Value

Investments on Non-Accrual Status as of June 30, 2018 Elements Behavioral Health, Inc. Healthcare & Pharmaceuticals $11,911 $0 Magnetation, LLC Metals & Mining 1,273 405 Spotted Hawk Energy – Oil & Gas 44,380 45,470 Sprint Industrial Holdings, LLC. Containers, Packaging & Glass 18,107 11,770 Total $75,671 $57,646

1 Source: Company data. Includes all portfolio company investments except structured products, common equities, warrants and investments on non-accrual status. Also excludes select investments where debt-to- EBITDA is not a relevant or appropriate metric, or data is not available. Weighted average by cost.

37 Diversified Funding Sources as of June 30, 2018

Principal Amount Debt Issued/ Final Maturity Interest Debt Facilities Outstanding Amended Date Rate (in thousands) Senior Secured Facility ($1.19 billion) 12/22/2016 12/22/2021 L + 200 bps $597,751 Senior Secured Notes (Series B) 9/29/2011 9/29/2018 6.250% 16,000 2043 Notes (redeemable on or after 7/15/18) 6/17/2013 7/15/2043 6.875% 150,000 2025 Notes 3/3/2015 3/3/2025 5.250% 350,000

Weighted Average Annualized Interest Cost1 & Total Debt Obligations 5.246% 1,113,751 Deferred Financing Cost and Debt Discount (11,072) Total Debt Obligations,Net of Deferred Financing Cost and Debt Discount $1,102,679

1 Includes the stated interest expense and commitment fees on the unused portion of the Senior Secured Facility. Excludes amortized debt issuance costs. For the three months ended June 30, 2018. Based on average debt obligations outstanding.

38 Interest Rate Exposure as of June 30, 2018

Investment Portfolio1,2 Funding Sources3

6% 21%

55% 24%

94%

Fixed Rate Debt Floating Rate Debt Common Equit y Fixed Rate Assets Floating Rate Assets

Floating Rate Asset Floor Net Investment Income Interest Rate Sensitivity4

Annual Net Annual Net % of Floating Rate ($ in millions) Par or Cost Investment Income Investment Income Portfolio (in millions) Per Share Interest Rate Floors Basis Point Change No Floor $306 20% Up 400 basis points $28.7 $0.134

< 1.00% 90 6% Up 300 basis points $21.5 $0.100

1.00% to 1.24% 1,095 70% Up 200 basis points $14.4 $0.067

1.25% to 1.49% 30 2% Up 100 basis points $7.2 $0.033

1.50% to 1.74% 13 1% Down 100 basis points ($7.0) ($0.032) > =1.75% 23 1% Total $1,557 100%

1 On a fair value basis. 2 The interest type information is calculated using the Company’s corporate debt portfolio and excludes aviation, oil and gas, structured credit, renewables, shipping, commodities and investments on non-accrual status. 3 Based on total debt obligations before deferred financing cost and debt discount. 4 The table shows the estimated annual impact on net investment income of base rate changes in interest rates (considering interest rate floors for floating rate instruments) to our loan portfolio and outstanding debt as of June 30, 2018, assuming no changes in our investment and borrowing structure.

39 Contact Information

For more information, please contact:

Elizabeth Besen Gregory W. Hunt Investor Relations Manager Chief Financial Officer and Treasurer Phone: (212) 822-0625 Phone: (212) 822-0655 Email: [email protected] Email: [email protected]

40