In the stock market today it is option expiration Friday. Certain stock have option chains associate to them. They are known as optionable stocks. Today is options expiration Friday, and it can be the last trading day for a number of option chains that expire today. Why do we believe we should pay attention to option expiration? Because of something called delta hedging, the price of stocks that may be influenced by hedging options positions, may cause stock market indices and possible other stocks to trades around a given stock price (The at the money strike). This phenomena is known as stock pinning on option expiration.

If a stock is pinned, it would suggest that it can be influenced by trading volume on the options chains (its option chains, or possible even the option chains of other stocks and indices).

This can be useful to know, because if a stock is pinned today, next week it might be influenced by options activity, particularly if stock investors buy put options for protection next week, and the professionals hedge their short put options by short selling the stock.

There is a number of stocks that have options on them. We plan to post the list of option stocks. Below is a partial list of such stocks.


GAFISA S.A. GFA
GALLAGHER ARTHUR J.& CO AJG
GAMESTOP CORP (HLDG CO) CL A GME
GAMMON GOLD INC. GRS
GANNETT CO INC GCI
GAP INC (THE) GPS
GARDNER DENVER INC GDI
GARMIN LTD GRMN
GASTAR EXPLORATION LTD GST
GATX CORP GMT
GAYLORD ENTERTAINMENT CO GET
GEN-PROBE INC NEW GPRO
GENCO SHIPPING & TRADING LTD. GNK
GENCORP INC. GY
GENERAL CABLE CORP BGC
GENERAL COMM INC GNCMA
GENERAL DYNAMICS CORP GD
GENERAL ELECTRIC CO GE
GENERAL GROWTH PROPERTIES INC. GGP
GENERAL MARITIME CORP GMR
GENERAL MILLS INC GIS
GENERAL MOLY INC. GMO
GENERAL STEEL HLDGS INC GSI
GENESEE & WYOMING INC CL-A GWR
GENOMIC HEALTH INC. GHDX
GENOPTIX INC. GXDX
GENTEX CORP GNTX
GENTIVA HEALTH SERVICES INC. GTIV
GENUINE PARTS CO GPC
GENWORTH FINANCIAL INC CL A GNW
GENZYME CORP GENZ
GEO GROUP INC GEO
GEOEYE INC GEOY
GEOKINETICS INC GOK
GERBER SCIENTIFIC INC GRB
GERDAU S.A. ADS (REPTG 1 PREF SH) GGB
GERON CORP GERN
GETTY REALTY CORP. HLDG CO. GTY
GFI GROUP INC GFIG
GIANT INTERACTIVE GROUP INC. GA
GIGAMEDIA LIMITED GIGM
GILDAN ACTIVEWEAR INC. GIL
GILEAD SCIENCES INC GILD
GIVEN IMAGING LTD GIVN
GLADSTONE CAPITAL CORP GLAD
GLAXOSMITHKLINE PLC ADS GSK
GLEACHER & COMPANY INC. GLCH
GLIMCHER REALTY TRUST GRT
GLOBAL CROSSING LTD NEW (BERMUDA) GLBC
GLOBAL INDS LTD GLBL
GLOBAL PAYMENTS INC GPN
GMX RESOURCES INC GMXR
GOL LINHAS AEREAS INTELIGENTES S.A. GOL
GOLAR LNG LTD (BERMUDA) GLNG
GOLD FIELDS LTD SPONS ADR GFI
GOLDCORP INC. GG
GOLDEN DRAGON HALTER USX CHINA PORTFOLIO PGJ
GOLDEN STAR RESOURCES LTD GSS
GOLDMAN SACHS GROUP INC GS
GOODRICH CORP GR
GOODRICH PETROLEUM CORP(NEW) GDP
GOODYEAR TIRE & RUBBER CO GT
GOOGLE INC CLASS A GOOG
GOVERNMENT PROPERTIES INCOME TRUST GOV
GRACE(W.R.)& CO(NEW) GRA
GRAFTECH INTERNATIONAL LTD GTI
GRAHAM PACKAGING COMPANY INC GRM
GRAINGER W.W.INC GWW
GRAN TIERRA ENERGY INC GTE
GRAND CANYON EDUCATION INC LOPE
GRANITE CONSTRUCTION INC GVA
GREAT ATLANTIC & PAC TEA GAP
GREAT LAKES DRE & DOCK CORP GLDD
GREAT PLAINS ENERGY INC. GXP
GREATBATCH INC GB
GREEN MOUNTAIN COFFEE ROASTERS INC. GMCR
GREEN PLAINS RENEWABLE ENERG GPRE
GREENHILL & CO INC COM STK GHL
GREIF INC GEF
GRIFFON CORPORATION GFF
GROUP 1 AUTOMOTIVE INC GPI
GROUP ONE TRADING LP INDEX ETN OIL
GRUPO AEROPORTUARIO DEL SURESTE S.A.B. ASR
GRUPO TELEVISA SA GDS (REPTG 5 ORD TV
GSI COMMERCE INC GSIC
GT SOLAR INTERNATIONAL INC. SOLR
GTX INC. GTXI
GUESS ? INC. GES
GUGGENHEIM BRIC ETF EEB
GUGGENHEIM CHINA ALL-CAP ETF YAO
GUGGENHEIM CHINA SMALL CAP ETF HAO
GUGGENHEIM GLOBAL SOLAR INDEX ETF TAN
GULF RESOURCES INC. GFRE
GULFMARK OFFSHORE INC. CLASS A GLF
GUSHAN ENVIRONMENTAL ENERGY LTD. GU
GYMBOREE CORP (THE) GYMB
HAEMONETICS CORPORATION HAE
HAIN CELESTIAL GROUP INC.(THE) HAIN
HALLIBURTON CO (HOLDING CO) HAL
HALOZYME THERAPEUTICS INC. HALO
HANCOCK HOLDING COMPANY HBHC
HANESBRANDS INC COM STK HBI
HANSEN MEDICAL INC. HNSN
HANSEN NATURAL CORP HANS
HARBIN ELECTRIC INC HRBN
HARLEY DAVIDSON INC HOG
HARMAN INT''L IND INC HAR
HARMONIC INC HLIT
HARMONY GOLD MNG SP ADR-NEW HMY
HARRIS CORP HRS
HARTE HANKS INC. HHS
HARTFORD FIN SER GP INC HIG
HASBRO INC HAS
HATTERAS FINANCIAL CORP HTS
HAWAIIAN HOLDINGS INC HA
HAYNES INTL INC HAYN
HCP INC. HCP
HDFC BANK LTD. HDB
HEADWATERS INCORPORATED HW
HEALTH CARE REIT INC HCN
HEALTH MGMT ASSOC INC CL-A HMA
HEALTH NET INC. HNT
HEALTHCARE REALTY TRUST INC HR
HEALTHCARE SVC GROUP INC HCSG
HEALTHSOUTH CORP. HLS
HEALTHSPRING INC. HS
HEALTHWAYS INC HWAY
HEARTLAND PAYMENT SYSTEMS INC HPY
HEARTWARE INTL INC HTWR
HECKMANN CORP. HEK
HECLA MINING CO HL
HEICO CORPORATION HEI
HEINZ H.J. CO HNZ
HELEN OF TROY LTD-NEW-BERMUDA HELE
HELIX ENERGY SOLUTIONS GROUP INC HLX
HELMERICH & PAYNE INC HP
HENRY JACK & ASSOCIATES INC JKHY
HERBALIFE LTD HLF
HERCULES OFFSHORE INC HERO
HERLEY INDUSTRIES INC. HRLY
HERSHA HOSPITALITY TR CL-A HT
HERTZ GOLBAL HOLDINGS INC. HTZ
HESS CORPORATION HES
HEWLETT-PACKARD CO HPQ
HEXCEL CORP (NEW) HXL
HHGREGG INC. HGG
HI TECH PHARMACAL INC. HITK
HIBBETT SPORTS INC COM HIBB
HIGH YIELD CORP. BOND FUND HYG
HIGHWOOD PROPERTIES INC HIW
HILL INTL INC HIL
HILL-ROM HOLDINGS INC. HRC
HILLTOP HOLDINGS INC. HTH
HIMAX TECHNOLOGIES INC HIMX
HITACHI LTD ADR (10COM)NEW HIT
HITTITE MICROWAVE CORP HITT
HMS HOLDINGS CORP. HMSY
HOKU CORPORATION HOKU
HOLLY CORPORATION HOC
HOLOGIC INC HOLX
HOME DEPOT INC HD
HOME INNS & HOTELS MANAGEMENT INC. HMIN
HOME PROPERTIES INC. HME
HONDA MOTOR CO ADR ONE (1) COM STK HMC
HONEYWELL INTERNATIONAL INC HON
HORACE MANN EDU CORP HMN
HORIZON LINES INC HRZ
HORMEL FOODS CORPORATION HRL
HORNBECK OFFSHORE SERVICES INC HOS
HORSEHEAD HLDG CORP ZINC
HOSPIRA INC HSP
HOSPITALITY PROPERTIES TST SBI HPT
HOST HOTELS & RESORTS INC HST
HOT TOPIC INC HOTT
HOUSTON AMEICAN ENERGY HUSA
HOVNANIAN ENTERPRISES INC HOV
HSBC HOLD PLC ADS (REP 5 ORD) HBC
HSN INC HSNI
HUANENG POWER INTERNATIONAL INC. HNP
HUBBELL INC. HUBB
HUDSON CITY BANCORP INC HCBK
HUDSON PACIFIC PROPERTIES INC HPP
HUGOT ROYALTY TRUST HGT
HUMAN GENOME SCIENCES INC HGSI
HUMANA INC HUM
HUNT J B TRANSPORT SVCS INC JBHT
HUNTINGTON BANCSHARES INC HBAN
HUNTSMAN CORPORATION HUN
HURON CONSULTING GROUP INC. HURN
HUTCHINSON TECHNOLOGY INC HTCH
HWAB INTERMEDIATE-TERM U.S. TREASURY ETF SCHR
HYATT HOTELS CORP H
IAC/INTER ACTIVE CORP NEW IACI
IAMGOLD CORP IAG
IBERIABANK CORP IBKC
ICICI BANK LTD ADS(RP 2EQTY SH IBN
ICON PLC ICLR
ICONIX BRAND GROUP INC. ICON
ICX TECHNOLOGIES INC. ICXT
IDEX CORP. IEX
IDEXX LABORATORIES CORP IDXX
IDT CORP CLASS B IDT
IESI-BFC LTD COMMON SHARES BIN
IHS INC. IHS
II-VI INC. IIVI
ILLINOIS TOOL WORKS ITW
ILLUMINA INC. ILMN
IMAX CORPORATION IMAX
IMMERSION CORP IMMR
IMMUCOR INC BLUD
IMMUNOGEN INC IMGN
IMMUNOMEDICS INC IMMU
IMPAX LAB. INC. IPXL
IMPERIAL OIL LTD. IMO
IMPERIAL SUGAR COMPANY IPSU
INCYTE CORPORATION INCY
INDIA FUND INC (THE) IFN
INDUSTRIAL SECTOR SPDR XLI
INERGY L.P. NRGY
INFINERA CORP INFN
INFORMATICA CORP INFA
INFOSPACE INC COM NEW INSP
INFOSYS TECHNOLOGIES LTD ADS INFY
ING GROEP NV ADS (BEAR DEP RCT ING
INGERSOLL-RAND PLC IR
INGRAM MICRO INC.CL-A IM
INLAND REAL ESTATE CORP IRC
INNOPHOS HOLDINGS INC IPHS
INOCOKING COAL & COKE CHEMICAL IND INC. SCOK
INSIGHT ENTERPRISES INC NSIT
INSITUFORM TECHNOLOGIES INC. INSU
INSPIRE PHARMACEUTICALS INC ISPH
INSULET CORPORATION PODD
INTEGGYS ENERGY GROUP INC. TEG
INTEGRATED DEVICE TECH INC IDTI
INTEGRATED SILICON SOLUTN INC ISSI
INTEL CORP INTC
INTERACTIVE BROKERS GROUP INC. IBKR
INTERCLICK INC NEW ICLK
INTERCONTINENTALEXCHANGE INC. COM ICE
INTERCONTNTL HTLS GRP PLC NEW IHG
INTERDIGITAL INC. IDCC
INTERMEC INC. IN
INTERMUNE INC ITMN
INTERNATIONAL ASSET HOLDING IAAC
INTERNATIONAL COAL GROUP INC ICO
INTERNATIONAL PAPER CO IP
INTERNATIONAL SPEEDWAY CORP ISCA
INTERNET HLDRS TSTHLD DEP RCPT HHH
INTEROIL CORP (F) IOC
INTERPUBLIC GROUP COS INC IPG
INTERSIL CORP CL-A ISIL
INTERVAL LEISURE GROUP INC IILG
INTEVAC INC IVAC
INTL BUSINESS MACHINES CORP IBM
INTL FLAVORS & FRAGRANCES IFF
INTL GAME TECHNOLOGY IGT
INTL RECTIFIER CORP IRF
INTREPID POTASH INC. IPI
INTUIT INC INTU
INTUITIVE SURGICAL INC ISRG
INVACARE CORP IVC
INVESCO LTD. IVZ
INVESCO MORTGAGE CAPITAL IVR
INVESTMENT TECH GROUP INC(NEW) ITG
INVESTORS R.E. TR SBI IRET
ION GEOPHYSICAL CORP. IO
IPATH DOW JONES-UBS COMMODITY INDEX ETN DJP
IPATH DOW JONES-UBS LIVESTOCK TOTAL ETN COW
IPATH DOW JONES-UBS NATURAL GAS ETN GAZ
IPATH MSCI INDIA INDEX ETN INP
IPATH S&P 500 VIX MD-TM FT VXZ
IPATH S&P 500 VIX SH-TM FT VXX
IRIDIUM COMMUNICATIONS INC IRDM
IRIS INTERNATIONAL INC IRIS
IROBOT CORPORATION IRBT
IRON MOUNTAIN INC DELAWARE IRM
IRONWOOD PHARMACEUTICALS INC IRWD
ISHARE COHEN&STEERS RLTY MAJOR ICF
ISHARES BARCLAYS 1-3 YEAR TREASURY BOND SHY
ISHARES BARCLAYS 3-7 YEAR TREASURY BOND IEI
ISHARES BARCLAYS 7-10 YEAR TREASURY BOND IEF
ISHARES BARCLAYS TIPS BOND FD TIP
ISHARES COMEX GOLD TRUST IAU
ISHARES DJ US BROKER INDEX IAI
ISHARES DJ US FIN''L SEC INDEX IYF
ISHARES DJ US HEALTH INDEX IHF
ISHARES DJ US HLTHCR SECT IDX IYH
ISHARES DJ US HOME CONTRUCTION ITB
ISHARES DJ US OIL & EQUIPMENT IEZ
ISHARES DJ US OIL & EXPLR IEO
ISHARES DJ US REAL EST IDX FD IYR
ISHARES DJ US REGIONAL BANKS INDEX FUND IAT
ISHARES DJ US TELECOM INDEX IYZ
ISHARES DJ US UTIL SECT IDX FD IDU
ISHARES DOW JONES SELECT DIVIDEND I DVY
ISHARES DOW JONES TRANSP AVG INDEX IYT
ISHARES DOW JONES U.S. INDEX FUND IYY
ISHARES FTSE/XINHUA CHINA 25 INDEX FXI
ISHARES GSCI COMMODITY-INDEXED TRUST GSG
ISHARES IBOXX $ INVESTOP INVESTMENT LQD
ISHARES MSCI AUSTRALIA IDX FD EWA
ISHARES MSCI BRAZIL EWZ
ISHARES MSCI BRIC INDEX FUND BKF
ISHARES MSCI CANADA INDEX FD EWC
ISHARES MSCI EMERGING MARKETS INDEX EEM
ISHARES MSCI EMU INDEX FUND EZU
ISHARES MSCI GERMANY INDEX FD EWG
ISHARES MSCI HONG KONG IDX FD EWH
ISHARES MSCI ITALY INDEX FUND EWI
ISHARES MSCI JAPAN INDEX FUND EWJ
ISHARES MSCI MEX FND EWW
ISHARES MSCI PAC EX-JAP INDEX FUND EPP
ISHARES MSCI SOUTH AFRICA INDEX EZA
ISHARES MSCI SPAIN INDEX EWP
ISHARES MSCI SWEDEN INDEX EWD
ISHARES MSCI TAIWAN INDEX FUND EWT
ISHARES NASDAQ BIOTECH INDX FD IBB
ISHARES ON THE S&P 100 INDEX FUND OEF
ISHARES RUSSELL 2000 INDEX IWM
ISHARES RUSSELL 3000 INDEX IWV
ISHARES RUSSELL MIDCAP GROWTH INDEX IWP
ISHARES RUSSELL MIDCAP INDEX FUND IWR
ISHARES RUSSELL2000 GWT IDX FD IWO
ISHARES RUSSELL2000 VAL IDX FD IWN
ISHARES S&P EUR 350 INDEX FUND IEV
ISHARES S&P GSSI NATURAL RESOURCES INDEX IGE
ISHARES S&P LATIN AMERICA 40 INDEX ILF
ISHARES S&P MIDCAP400 INDEX IJH
ISHARES S&P SM CAP 600 INDEX IJR
ISHARES S&P SMALLCAP 600 VALUE INDE IJS
ISHARES S&P U.S. PFD STOCK PFF
ISHARES SILVER TRUST SLV
ISHARES TR MSCI EAFE INDEX FD EFA
ISHARS DJ US BASICMAT SECT IDX IYM
ISHS MSCI MALAYSIA(FREE)IDXFD EWM
ISHS MSCI SINGAPRE(FREE)IDX FD EWS
ISHS MSCI SOUTH KOREA IDX FD EWY
ISILON SYSTEMS INC. ISLN
ISIS PHARMACEUTICALS ISIS
ISTA PHARMACEUTICALS INC. ISTA
ISTAR FINANCIAL INC SFI
ITAU UNIBANCO HOLDING S.A. ITUB
ITRON INC ITRI
ITT CORPORATION ITT
ITT EDUCATIONAL SERVICES INC ESI
IVANHOE ENERGY INC IVAN
IVANHOE MINES LTD IVN

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