Regulatory Circular RG93-51

Date: October 8, 1993

To: Membership

From: Market Performance Committee

253 CLASSES QUALIFYING FOR SPECIAL MARKET-MAKER WEIGHTING

Respecting distribution of trading activity, at least 75 percent of a market-maker's total contract volume must be in option classes to which he has been appointed pursuant to Rule 8.3. The number of option classes to which an appointment may extend is presently five (5) trading stations.

Respecting the manner in which market-maker transactions may be executed, a market-maker must execute in-person, and not through the use of orders, at least 25 percent of his total transactions.

The Market Performance Committee has assigned special weighting factors to classes listed below in connection with these requirements. An explanation of the weighting procedures may be obtained from Cynthia Mullen in the Trading Procedures Office, 4th floor, 786-7725. These classes will remain weighted through December, 1993.

AAL ABF ABQ ACT ADT AEP AFQ AGC AIQ ALA ALC ALL ALS APM AQB AQN AQX ASC ATK AVQ BBC BBN BBQ BC BCC BDG BDQ BEC BHQ BJS BKQ BLH BNQ BOQ BQM BRQ BSQ BSX BTI BTQ BTY BUS BXQ CCB CCE CCL CDE CDN CDX CEN CEX CGP CHA CQC CQD CQI CQM CQN CQO CQP CSA CSN CWP CWQ CWX DBD DBQ DD DEC DLW DPS DRM DRY EAQ EC EEQ EFQ ELF EMQ EOG ERQ ETN ETR EVX FBS FDC FEQ FFB FFC FHQ FLD FLQ FM FRX FSH FSX FTX GDC GLG GMH GNR GNV GQ GQL GY H HAE HCX HDL HEM HGQ HIT HKT HMY HMZ HPI HQP HQR HRS HSC HTI HTQ HUQ IAQ IBQ ICQ IEQ IHS IIQ ILQ IQQ IRF IRQ IRX IUX JBM JBQ JNY JQN KLM KMG KQS KSS LBQ LE LFB LPQ LQB LSQ LQT MAI MAN MDV MEA MER MGA MGR MOQ MRG MSX MXP NAV NBR NFQ NLQ NOC NRQ NS NVQ NVX NWK NWN NWQ OG OI OIQ OM ONQ ORG OVQ PCS PHI PLX PMI PQN PQS PTB PVH PZL RAM RAQ RBQ RCL RDA RLX ROQ RPQ RQH RQS RTN RTQ RUS RXC RXQ RYQ SBH SC SHW SKY SO SOC SPC SQC SQI SUP SWY SZ TAN TEK TMQ TNQ TOT TQO TRB TRX UCC UNQ UST VCQ VEN VEQ VFQ VIQ VOD VQN VRQ VSH VWQ VYQ WEL WH WII WLP WME WSN XLQ XMQ XQR XRQ YLQ YPQ YRK ZEN