S&P Midcap 400® Pure Value Fund

S&P MidCap 400® Pure Value Fund SCHEDULE OF INVESTMENTS (Unaudited) March 31, 2021

Shares Value COMMON STOCKS† - 99.4% Financial - 40.1% Reinsurance Group of America, Inc. — Class A 3,045 $ 383,822 Navient Corp. 25,562 365,792 Jefferies Financial Group, Inc. 11,017 331,612 Genworth Financial, Inc. — Class A* 99,412 330,048 CNO Financial Group, Inc. 12,632 306,831 Old Republic International Corp. 13,246 289,293 Mercury General Corp. 4,671 284,044 Associated Banc-Corp. 12,714 271,317 FNB Corp. 20,584 261,417 Sterling Bancorp 10,257 236,116 Valley National Bancorp 16,853 231,560 First American Financial Corp. 4,070 230,566 Fulton Financial Corp. 13,300 226,499 Wintrust Financial Corp. 2,970 225,126 Jones Lang LaSalle, Inc.* 1,230 220,219 New York Community Bancorp, Inc. 17,360 219,083 First Horizon Corp. 12,184 206,031 Pinnacle Financial Partners, Inc. 2,260 200,372 Trustmark Corp. 5,850 196,911 Bank OZK 4,677 191,055 SL Green Realty Corp. REIT 2,720 190,373 Washington Federal, Inc. 6,160 189,728 Kemper Corp. 2,331 185,827 Alleghany Corp.* 290 181,624 United Bankshares, Inc. 4,610 177,854 Cathay General Bancorp 4,340 176,985 Hancock Whitney Corp. 4,211 176,904 Hanover Insurance Group, Inc. 1,350 174,771 Alliance Data Systems Corp. 1,530 171,498 Synovus Financial Corp. 3,706 169,549 MGIC Investment Corp. 12,240 169,524 TCF Financial Corp. 3,611 167,767 International Bancshares Corp. 3,550 164,791 Macerich Co. REIT1 13,980 163,566 American Financial Group, Inc. 1,420 162,022 BancorpSouth Bank 4,770 154,930 Prosperity Bancshares, Inc. 1,804 135,102 Webster Financial Corp. 2,383 131,327 East West Bancorp, Inc. 1,747 128,929 Pebblebrook Hotel Trust REIT 5,036 122,325 Service Properties Trust REIT 10,090 119,667 UMB Financial Corp. 1,240 114,489 CIT Group, Inc. 2,132 109,819 Texas Capital Bancshares, Inc.* 1,415 100,352 Selective Insurance Group, Inc. 1,300 94,302 Sabra Health Care REIT, Inc. 4,840 84,022 Cousins Properties, Inc. REIT 2,360 83,426 Janus Henderson Group plc 2,440 76,006 Total Financial 9,285,193 Consumer, Cyclical - 21.1% Kohl's Corp. 7,750 461,977 World Fuel Services Corp. 13,026 458,515 AutoNation, Inc.* 4,357 406,160 Taylor Morrison Home Corp. — Class A* 12,683 390,763 Dana, Inc. 14,118 343,491 Foot Locker, Inc. 5,654 318,037 Tri Pointe Homes, Inc.* 15,178 309,024 KB Home 6,280 292,209 Univar Solutions, Inc.* 13,380 288,205 Dick's Sporting Goods, Inc. 3,367 256,397 Murphy USA, Inc. 1,710 247,198 Goodyear Tire & Rubber Co.* 11,802 207,361 Thor Industries, Inc. 1,470 198,068 BJ's Wholesale Club Holdings, Inc.* 4,224 189,489 Lear Corp. 1,018 184,512 Adient plc* 3,149 139,186 Urban Outfitters, Inc.* 3,495 129,979 KAR Auction Services, Inc.* 5,037 75,555 Total Consumer, Cyclical 4,896,126 Industrial - 15.0% Avnet, Inc. 12,116 502,935 SYNNEX Corp. 3,337 383,221 Arrow Electronics, Inc.* 3,203 354,956 Ryder System, Inc. 3,853 291,480 Jabil, Inc. 4,880 254,541 Greif, Inc. — Class A 3,612 205,884 MasTec, Inc.* 2,130 199,581 EMCOR Group, Inc. 1,660 186,186 MDU Resources Group, Inc. 5,070 160,263 Oshkosh Corp. 1,340 159,004 Dycom Industries, Inc.* 1,607 149,210 AECOM* 2,263 145,081 KBR, Inc. 2,950 113,250 Kirby Corp.* 1,690 101,873 Trinity Industries, Inc. 3,404 96,980 Colfax Corp.* 2,170 95,068 GATX Corp. 850 78,829 Total Industrial 3,478,342 Consumer, Non-cyclical - 8.8% Graham Holdings Co. — Class B 650 365,586 Sprouts Farmers Market, Inc.* 11,497 306,050 Pilgrim's Pride Corp.* 12,460 296,423 ManpowerGroup, Inc. 2,679 264,953 TreeHouse Foods, Inc.* 4,856 253,678 Adtalem Global Education, Inc.* 4,711 186,273 Tenet Healthcare Corp.* 3,458 179,816 Ingredion, Inc. 1,339 120,403 Strategic Education, Inc. 810 74,447 Total Consumer, Non-cyclical 2,047,629 Basic Materials - 6.5% Commercial Metals Co. 15,399 474,905 Domtar Corp. 11,745 433,978 Reliance Steel & Aluminum Co. 1,148 174,829 United States Steel Corp. 6,031 157,831 Steel Dynamics, Inc. 3,097 157,204 Minerals Technologies, Inc. 1,503 113,206 Total Basic Materials 1,511,953 Communications - 3.3% Telephone & Data Systems, Inc. 22,615 519,240 Viasat, Inc.* 4,830 232,178 Total Communications 751,418 Technology - 3.2% Xerox Holdings Corp. 16,820 408,222 NCR Corp.* 4,590 174,190

S&P MidCap 400® Pure Value Fund SCHEDULE OF INVESTMENTS (Unaudited) March 31, 2021

Shares Value COMMON STOCKS† - 99.4% (continued) Technology - 3.2% (continued) NetScout Systems, Inc.* 5,524 $ 155,556 Total Technology 737,968 Utilities - 1.4% Southwest Gas Holdings, Inc. 1,890 129,862 UGI Corp. 2,476 101,541 ALLETE, Inc. 1,250 83,987 Total Utilities 315,390 Total Common Stocks (Cost $17,258,019) 23,024,019

Face Amount REPURCHASE AGREEMENTS††,2 - 0.6% J.P. Morgan Securities LLC issued 03/31/21 at 0.01% due 04/01/21 $ 69,664 69,664 Barclays Capital, Inc. issued 03/31/21 at 0.01% due 04/01/21 31,673 31,673 BofA Securities, Inc. issued 03/31/21 at 0.01% due 04/01/21 28,906 28,906 Total Repurchase Agreements (Cost $130,243) 130,243

Shares SECURITIES LENDING COLLATERAL†,3 - 0.5% Money Market Fund First American Government Obligations Fund — Class Z, 0.03%4 120,712 120,712 Total Securities Lending Collateral (Cost $120,712) 120,712 Total Investments - 100.5% (Cost $17,508,974) $ 23,274,974 Other Assets & Liabilities, net - (0.5)% (114,949) Total Net Assets - 100.0% $ 23,160,025

* Non-income producing security. † Value determined based on Level 1 inputs. †† Value determined based on Level 2 inputs. 1 All or a portion of this security is on loan at March 31, 2021. 2 Repurchase Agreements. 3 Securities lending collateral. 4 Rate indicated is the 7-day yield as of March 31, 2021. plc — Public Limited Company REIT — Real Estate Investment Trust