Margin Increase for US Securities with Market Cap < $500M

Overview:

The following securities will have their margin requirements raised to 100% over a 2 week period, as a result of market capitalization being less than $250M.

Friday January 4, 2013: Maintenance Margin - 50%

Wednesday January 9, 2013: Maintenance Margin - 75%

Monday January 14, 2013: Maintenance Margin - 100%

Symbol Name
ABFS ARKANSAS BEST CORP
ACUR ACURA PHARMACEUTICALS INC
ACW ACCURIDE CORP
ADNC AUDIENCE INC
ADUS ADDUS HOMECARE CORP
AERL ASIA ENTERTAINMENT & RESOURC
AFAM ALMOST FAMILY INC
AFFX AFFYMETRIX INC
AGYS AGILYSYS INC
AHC AH BELO CORP-A
ALC ASSISTED LIVING CONCEPTS I-A
ALCS ALCO STORES INC
ALTI ALTAIR NANOTECHNOLOGIES INC
ALXA ALEXZA PHARMACEUTICALS INC
AMRS AMYRIS INC
AMSC AMERICAN SUPERCONDUCTOR CORP
ANX ADVENTRX PHARMACEUTICALS INC
APAGF APCO OIL AND GAS INTL INC
ARQL ARQULE INC
ART ARTIO GLOBAL INVESTORS INC
ASTM AASTROM BIOSCIENCES INC
ATNY API TECHNOLOGIES CORP
ATSG AIR TRANSPORT SERVICES GROUP
ATTU ATTUNITY LTD
AUMN GOLDEN MINERALS CO
AVHI AV HOMES INC
AXAS ABRAXAS PETROLEUM CORP
AXU ALEXCO RESOURCE CORP
BBX BBX CAPITAL CORP-A
BIOD BIODEL INC
BIOF BIOFUEL ENERGY CORP
BLMT BSB BANCORP INC/MA
BODY BODY CENTRAL CORP
BPAX BIOSANTE PHARMACEUTICALS INC
BRD BRIGUS GOLD CORP
CARB CARBONITE INC
CCRN CROSS COUNTRY HEALTHCARE INC
CECO CAREER EDUCATION CORP
CEDC CENTRAL EURO DISTRIBUTION CP
CEMI CHEMBIO DIAGNOSTICS INC
CERE CERES INC
CHTP CHELSEA THERAPEUTICS INTERNA
CNDO CORONADO BIOSCIENCES INC
CRFN CRESCENT FINANCIAL BANCSHARE
CRNT CERAGON NETWORKS LTD
CSFL CENTERSTATE BANKS INC
CWCO CONSOLIDATED WATER CO-ORD SH
DGII DIGI INTERNATIONAL INC
DM DOLAN CO/THE
EGI ENTREE GOLD INC.
EGLE EAGLE BULK SHIPPING INC
ELON ECHELON CORP
ERB ERBA DIAGNOSTICS INC
FLWS 1-800-FLOWERS.COM INC-CL A
FORM FORMFACTOR INC
FSBW FS BANCORP INC
GERN GERON CORP
GMXR GMX RESOURCES INC
GNE GENIE ENERGY LTD-B
GNK GENCO SHIPPING & TRADING LTD
GPRE GREEN PLAINS RENEWABLE ENERG
GSOL GLOBAL SOURCES LTD
GST GASTAR EXPLORATION LTD
HDY HYPERDYNAMICS CORP
HGG HHGREGG INC
HZNP HORIZON PHARMA INC
IDT IDT CORP-CLASS B
IMMU IMMUNOMEDICS INC
IMN IMATION CORP
INTX INTERSECTIONS INC
IQNT NEUTRAL TANDEM INC
JAG JAGUAR MINING INC.
JMI JAVELIN MORTGAGE INVESTMENT
JRCC JAMES RIVER COAL CO
KCAP KCAP FINANCIAL INC
KEM KEMET CORP
KERX KERYX BIOPHARMACEUTICALS
KFS KINGSWAY FINANCIAL SERVICES
KITD KIT DIGITAL INC
LLNW LIMELIGHT NETWORKS INC
LPR LONE PINE RESOURCES INC
LPTN LPATH INC-CLASS A
MCBK MADISON COUNTY FINANCIAL INC
MEET MEETME INC
MEIP MEI PHARMA INC
MXWL MAXWELL TECHNOLOGIES INC
NCQ NOVACOPPER INC
NVTL NOVATEL WIRELESS INC
NYMX NYMOX PHARMACEUTICAL CORP
OCZ OCZ TECHNOLOGY GROUP INC
ONTY ONCOTHYREON INC
OPY OPPENHEIMER HOLDINGS-CL A
OSGIQ OVERSEAS SHIPHOLDING GROUP
PACB PACIFIC BIOSCIENCES OF CALIF
PCXCQ PATRIOT COAL CORP
PLM POLYMET MINING CORP
PMFG PMFG INC
POZN POZEN INC
PRSS CAFEPRESS INC
QKLS QKL STORES INC
RBCN RUBICON TECHNOLOGY INC
REE RARE ELEMENT RESOURCES LTD
REX REX AMERICAN RESOURCES CORP
RLJE RLJ ENTERTAINMENT INC
RNDY ROUNDY'S INC
RSH RADIOSHACK CORP
SCMR SYCAMORE NETWORKS INC.
SFBC SOUND FINANCIAL BANCORP INC
SHBI SHORE BANCSHARES INC
SIGA SIGA TECHNOLOGIES INC
SIGM SIGMA DESIGNS INC
SKY SKYLINE CORP
STAA STAAR SURGICAL CO
STRI STR HOLDINGS INC
STXS STEREOTAXIS INC
SYNC SYNACOR INC
THLD THRESHOLD PHARMACEUTICALS
THM INTL TOWER HILL MINES LTD
THQI THQ INC
TNK TEEKAY TANKERS LTD-CLASS A
TNP TSAKOS ENERGY NAVIGATION LTD
TPGI THOMAS PROPERTIES GROUP
TPHS TRINITY PLACE HOLDINGS INC
TRGT TARGACEPT INC
TROV TROVAGENE INC
TSEM TOWER SEMICONDUCTOR LTD
TWIN TWIN DISC INC
UNIS UNILIFE CORP
UPIP UNWIRED PLANET INC
USMO USA MOBILITY INC
VLCCF KNIGHTSBRIDGE TANKERS LTD
VOXX VOXX INTERNATIONAL CORP
XIDE EXIDE TECHNOLOGIES
XOMA XOMA CORP
XOXO XO GROUP INC
XRA EXETER RESOURCE CORPORATION
XRTX XYRATEX LTD
YOD YOU ON DEMAND HOLDINGS INC
YORW YORK WATER CO
ZAZA ZAZA ENERGY CORP
ZLTQ ZELTIQ AESTHETICS INC