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    Contract Adjustments — May 2013

    Memo Date Description
    32716 05/21/2013 KAYAK SOFTWARE CORPORATION (ELECTION MERGER) - CONTACT ADJUSTMENT (KYAK)
    32713 05/20/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/21/2013
    32712 05/20/2013 PLAINS EXPLORATION & PRODUCTION COMPANY (ELECTION MERGER/CONTINGENT DIVIDEND) - ANTICIPATED ADJUSTMENT OPTION SYMBOL: PXP NEW SYMBOL: FCX1 FUTURES SYMBOLS: PXP1C/PXP1D NEW SYMBOLS: PXP2C/PXP2D * * * UPDATE * * *
    32711 05/20/2013 LINN CO. LLC FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1LNCO
    32710 05/20/2013 DOLE FOOD COMPANY, INC. FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1DOLE
    32709 05/20/2013 XYLEM INC. FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1XYL
    32708 05/20/2013 REPUBLIC SERVICES INC. FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1RSG
    32707 05/20/2013 MARTEN TRANSPORT LTD. - 3 FOR 2 STOCK SPLIT OPTION SYMBOL: MRTN NEW OPTION SYMBOL: MRTN1
    32706 05/17/2013 EXPIRATION PRICES
    32705 05/17/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/20/2013
    32704 05/17/2013 TSTC/YONG OPTIONS - TRADING HALT/REMOVAL FROM EX-BY-EX PROCESSING/EXPIRATION PRICING CONSIDERATIONS
    32703 05/17/2013 ELAN CORPORATION PLC - TENDER OFFER OPTION SYMBOL: ELN ADJUSTED OPTION SYMBOL: ELN1 FUTURE SYMBOL: ELN1C
    32702 05/17/2013 TELULAR CORPORATION - TENDER OFFER OPTION SYMBOL: WRLS
    32701 05/17/2013 CBOE S&P 500 INDEX FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 2SPX
    32700 05/17/2013 HECKMANN CORPORATION - NAME/SYMBOL/CUSIP CHANGE OPTION SYMBOL: HEK NEW SYMBOL: NES
    32699 05/16/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/17/2013
    32698 05/16/2013 URA1 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32697 05/16/2013 CIG2 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32696 05/16/2013 ALON USA ENERGY, INC. - CASH DISTRIBUTION FUTURE SYMBOL: ALJ1C
    32694 05/16/2013 ALON USA ENERGY, INC. - CASH DISTRIBUTION OPTION SYMBOL: ALJ
    32693 05/16/2013 VLO1 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32692 05/16/2013 COVENTRY HEALTH CARE, INC. - CASH IN LIEU SETTLEMENT ADJUSTED OPTION SYMBOLS: AET1
    32690 05/16/2013 CXW1 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32689 05/16/2013 BAM1 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32688 05/16/2013 WIT1 OPTIONS - EXPIRATION PRICING CONSIDERATION
    32687 05/16/2013 ITAU UNIBANCO HOLDING S.A. - 10% STOCK DIVIDEND FUTURES SYMBOLS: ITUB1C/ITUB1D NEW SYMBOLS: ITUB2C/ITUB2D
    32686 05/16/2013 ITAU UNIBANCO HOLDING S.A. - 10% STOCK DIVIDEND OPTION SYMBOLS: ITUB/2ITUB NEW SYMBOLS: ITUB1/2ITUB1
    32685 05/16/2013 GAMESTOP CORP. FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1GME
    32684 05/15/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/16/2013
    32682 05/15/2013 ACCELERATION OF EXPIRATIONS/MAY 2013 EXPIRATION
    32681 05/15/2013 MAIN STREET CAPITAL CORPORATION - CASH DISTRIBUTION OPTION SYMBOL: MAIN
    32680 05/15/2013 NETSPEND HOLDINGS, INC. - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: NTSP
    32679 05/14/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/15/2013
    32678 05/14/2013 TESSERA TECHNOLOGIES, INC. - CASH DISTRIBUTION FUTURE SYMBOL: TSRA1C
    32677 05/14/2013 TESSERA TECHNOLOGIES, INC. - CASH DISTRIBUTION OPTION SYMBOL: TSRA
    32676 05/14/2013 OFFICEMAX INCORPORATED - CASH DISTRIBUTION FUTURE SYMBOL: OMX1C
    32675 05/14/2013 OFFICEMAX INCORPORATED - CASH DISTRIBUTION OPTION SYMBOL: OMX NEW OPTION SYMBOL: OMX1
    32674 05/14/2013 KAYAK SOFTWARE CORPORATION (ELECTION MERGER) - ANTICIPATED ADJUSTMENT OPTION SYMBOL:KYAK NEW SYMBOL: PCLN1 * * * UPDATE * * *
    32673 05/14/2013 GLOBAL X URANIUM ETF - REVERSE SPLIT OPTION SYMBOL: URA NEW SYMBOL: URA1
    32672 05/14/2013 GLOBAL X GOLD EXPLORERS ETF - REVERSE SPLIT OPTION SYMBOL: GLDX NEW SYMBOL: GLDX1
    32671 05/14/2013 TRADING HALTS WEEKLY UPDATE - REMOVAL FROM EX BY EX PROCESSING
    32670 05/13/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/14/2013
    32669 05/13/2013 PLAINS EXPLORATION & PRODUCTION COMPANY (ELECTION MERGER) - ANTICIPATED ADJUSTMENT OPTION SYMBOL: PXP NEW SYMBOL: FCX1 FUTURES SYMBOLS: PXP1C/PXP1D NEW SYMBOLS: PXP2C/PXP2D
    32668 05/13/2013 TWO HARBORS INVESTMENT CORP. - SETTLEMENT ADJUSTED OPTION SYMBOLS: TWO1/2TWO1
    32667 05/13/2013 CLEARWIRE CORPORATION - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: CLWR
    32666 05/13/2013 SIX FLAGS ENTERTAINMENT CORPORATION - 2 FOR 1 STOCK SPLIT OPTION SYMBOL: SIX
    32665 05/13/2013 SIX FLAGS ENTERTAINMENT CORPORATION - 2 FOR 1 STOCK SPLIT FUTURES SYMBOLS:SIX1C/SIX1D
    32664 05/13/2013 WHOLE FOODS MARKET, INC. - 2 FOR 1 STOCK SPLIT OPTION SYMBOLS: WFM/2WFM
    32663 05/13/2013 WHOLE FOODS MARKET, INC. - 2 FOR 1 STOCK SPLIT FUTURES SYMBOLS: WFM1C/WFM1D
    32662 05/13/2013 ARGO GROUP INTERNATIONAL HOLDINGS, LTD - 10% STOCK DIVIDEND OPTION SYMBOL: AGII NEW SYMBOL: AGII1
    32661 05/13/2013 ARTIO GLOBAL INVESTORS INC. - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: ART
    32660 05/13/2013 ASSISTED LIVING CONCEPTS, INC. - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: ALC
    32659 05/13/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS * * * UPDATE TO TSU1D * * *
    32656 05/10/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/13/2013
    32655 05/10/2013 CONCEPTUS, INC. - TENDER OFFER (CPTS)
    32654 05/09/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/10/2013
    32652 05/09/2013 BUCKEYE TECHNOLOGIES INC. - TENDER OFFER OPTION SYMBOL: BKI
    32650 05/09/2013 ALTERRA CAPITAL HOLDINGS LIMITED - CASH IN LIEU SETTLEMENT ADJUSTED OPTION SYMBOL:MKL1
    32649 05/08/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/9/2013
    32648 05/08/2013 DEAN FOODS COMPANY - DISTRIBUTION OPTION SYMBOL: DF NEW SYMBOL:DF1 FUTURES SYMBOLS: DF1C/DF1D NEW SYMBOLS: DF2C/DF2D
    32647 05/08/2013 NEWCASTLE INVESTMENT CORP. - DISTRIBUTION OPTION SYMBOL: NCT NEW SYMBOL:NCT1 FUTURES SYMBOLS: NCT1C/NCT1D NEW SYMBOLS: NCT2C/NCT2D
    32646 05/08/2013 ENZON, INC. - CASH DISTRIBUTION OPTION SYMBOL: ENZN NEW OPTION SYMBOL: ENZN1
    32645 05/08/2013 COPANO ENERGY, L.L.C. - CASH IN LIEU SETTLEMENT ADJUSTED OPTION SYMBOL: KMP1 ADJUSTED FUTURES SYMBOLS: CPNO2C/CPNO2D
    32644 05/07/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/8/2013
    32642 05/07/2013 WMS INDUSTRIES INC. - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: WMS
    32641 05/07/2013 MCGRAW HILL FINANCIAL, INC. - SYMBOL CHANGE FUTURES SYMBOLS: MHP1C/MHP1D NEW SYMBOLS: MHFI1C/ MHFI1D
    32640 05/07/2013 MCGRAW HILL FINANCIAL, INC. - SYMBOL CHANGE OPTION SYMBOLS: MHP/2MHP NEW SYMBOLS: MHFI/2MHFI
    32639 05/07/2013 TRADING HALTS WEEKLY UPDATE - REMOVAL FROM EX BY EX PROCESSING
    32638 05/07/2013 COVENTRY HEALTH CARE, INC. - CONTRACT ADJUSTMENT (CVH/CVH1C/CVH1D)
    32637 05/06/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/7/2013
    32636 05/06/2013 COMPANHIA BRASILEIRA DE DISTRIBUICAO - NO ADJUSTMENT OPTION SYMBOL: CBD
    32635 05/06/2013 COMPANHIA BRASILEIRA DE DISTRIBUICAO - CASH DISTRIBUTION IN LIEU OF RIGHTS FUTURE SYMBOL: CBD1C
    32634 05/06/2013 3SBIO INC. - ANTICIPATED CASH SETTLEMENT OPTION SYMBOL: SSRX * * * UPDATE * * *
    32633 05/06/2013 HOME BANCSHARES, INC - 2 FOR 1 STOCK SPLIT FUTURE SYMBOL: HOMB1C
    32632 05/06/2013 HOME BANCSHARES, INC. - 2 FOR 1 STOCK SPLIT OPTION SYMBOL: HOMB
    32631 05/06/2013 MAXIMUS, INC. - 2 FOR 1 STOCK SPLIT OPTION SYMBOL: MMS
    32630 05/06/2013 NOBLE ENERGY INC. - 2 FOR 1 STOCK SPLIT OPTION SYMBOLS: NBL/2NBL
    32629 05/06/2013 NOBLE ENERGY INC. - 2 FOR 1 STOCK SPLIT FUTURE SYMBOLS: NBL1C/NBL1D
    32628 05/06/2013 CAPITAL TRUST, INC. - REVERSE SPLIT OPTION SYMBOL: CT NEW SYMBOL: BXMT1
    32626 05/03/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/6/2013
    32625 05/03/2013 SUPERMEIDA, INC. - CASH IN LIEU SETTLEMENT ADJUSTED OPTION SYMBOL:DXM2
    32624 05/03/2013 CANADIAN PACIFIC RAILWAY LIMITED FLEX - POSITION CONSOLIDATION OPTION SYMBOL: 1CP
    32623 05/03/2013 NORTHFIELD BANCORP, INC. - CASH DISTRIBUTION (NFBK)
    32622 05/02/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/3/2013
    32621 05/02/2013 ADJUSTED CEMEX, S.A.B. DE C.V. - CASH IN LIEU SETTLEMENT ADJUSTED OPTION SYMBOL:2CX1
    32620 05/02/2013 AURIZON MINES LTD. (ELECTION MERGER) - ANTICIPATED ADJUSTMENT OPTION SYMBOL:AZK NEW SYMBOL: HL1
    32618 05/02/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/2/2013 * * *UPDATE* * *
    32617 05/01/2013 OCX.NoDivRisk CONTRACT ADJUSTMENTS FOR CASH DIVIDENDS EX -DATE: 5/2/2013
    32615 05/01/2013 VALERO ENERGY CORPORATION - DISTRIBUTION OPTION SYMBOLS: VLO/2VLO NEW SYMBOLS:VLO1/2VLO1 FUTURES SYMBOLS: VLO1C/VLO1D NEW SYMBOLS: VLO2C/VLO2D * * * UPDATE * * *
    32612 05/01/2013 ALTERRA CAPITAL HOLDINGS LIMITED - CONTRACT ADJUSTMENT (ALTE) ***CORRECTION TO ADJUSTED SYMBOL***
    32611 05/01/2013 ALTERRA CAPITAL HOLDINGS LIMITED - CONTRACT ADJUSTMENT (ALTE) ***EFFECTIVE IMMEDIATELY*** REPOST
    32609 05/01/2013 COPANO ENERGY, L.L.C. - CONTRACT ADJUSTMENT (CPNO/CPNO1C/CPNO1D) ***EFFECTIVE IMMEDIATELY***
    32608 05/01/2013 ALTERRA CAPITAL HOLDINGS LIMITED - CONTRACT ADJUSTMENT (ALTE) ***EFFECTIVE IMMEDIATELY ***