Biggest NYSE Changes in Short Interest vs Float as of May 13

The following tables show companies listed on the New York Stock Exchange that have the largest changes in short interest as a percentage of shares available for trading as of the May 13 settlement date.

TOP 25 INCREASES IN SHORT INTEREST VS FLOAT


                                      May 13          April 29   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Increase % 
=============================================================================
VHI   VALHI INC                          92.55           27.42        65.13
CIE   COBALT INTERNATI                    9.64            2.35         7.29
USNA  USANA HEALTH SCI                   16.86           10.27         6.59
NOC   NORTHROP GRUMMAN                    9.17            2.81         6.36
WMG   WARNER MUSIC GRO                    8.68            2.66         6.02
ARCO  ARCOS DORADOS-A                    13.06            8.93         4.13
EXPR  EXPRESS INC                         8.09            4.44         3.65
ONE   HIGHER ONE HOLD                    20.03           16.68         3.34
CLNY  COLONY FINANCIAL                    5.50            2.20         3.30
BYI   BALLY TECHNOLOGI                   15.99           12.78         3.20
SPF   STANDARD PACIFIC                   26.68           23.65         3.03
UFS   DOMTAR CORP                         6.48            3.50         2.98
LIZ   LIZ CLAIBORNE                      28.91           25.93         2.97
AIG   AMERICAN INTERNA                   29.12           26.27         2.85
WNR   WESTERN REFINING                   32.99           30.15         2.84
EK    EASTMAN KODAK                      20.26           17.61         2.65
GDP   GOODRICH PETRO                     25.28           22.68         2.60
VCI   VALASSIS COMM                      17.23           14.68         2.55
BKS   BARNES & NOBLE                     39.10           36.56         2.54
AKS   AK STEEL HLDG                      16.34           13.81         2.53
CCK   CROWN HOLDINGS I                    3.58            1.11         2.47
RTI   RTI INTL METALS                    14.72           12.49         2.23
KWK   QUICKSILVER RES                    12.45           10.22         2.23
VSH   VISHAY INTERTECH                   11.12            8.90         2.21
SIX   SIX FLAGS ENTERT                    4.08            1.91         2.17

TOP 25 DECREASES IN SHORT INTEREST VS FLOAT

                                      May 13          April 29   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Decrease % 
=============================================================================
DMD   DEMAND MEDIA INC                   46.65           57.00       -10.35
MHR   MAGNUM HUNTER RE                   16.16           25.88        -9.72
GDOT  GREEN DOT CORP-A                   16.16           24.55        -8.39
PNG   PAA NATURAL GAS                     0.86            8.29        -7.43
BPI   BRIDGEPOINT EDUC                   49.56           56.64        -7.08
AH    ACCRETIVE HEALTH                   12.10           16.33        -4.23
BZ    BOISE INC                           6.29           10.43        -4.13
RGC   REGAL ENTERTAI-A                   24.15           27.91        -3.76
ATI   ALLEGHENY TECH                     11.64           15.16        -3.52
MED   MEDIFAST INC                       27.29           30.40        -3.11
AHT   ASHFORD HOSPITAL                    7.59           10.59        -3.00
ART   ARTIO GLOBAL INV                    5.54            8.40        -2.86
CYH   COMMUNITY HEALTH                   10.71           13.47        -2.77
RES   RPC INC                            27.72           30.48        -2.76
AAN   AARON'S INC                         6.53            9.26        -2.73
KEG   KEY ENERGY SERV                     8.21           10.88        -2.67
HPP   HUDSON PACIFIC P                    4.19            6.84        -2.64
CNW   CON-WAY INC                         6.93            9.33        -2.40
GMXR  GMX RESOURCES                      12.96           15.35        -2.39
HAE   HAEMONETICS CORP                    7.00            9.27        -2.27
ID    L-1 IDENTITY SOL                   28.37           30.61        -2.24
JNS   JANUS CAPITAL GR                    6.78            8.93        -2.15
RAH   RALCORP HLDGS                       2.02            4.14        -2.12
MGM   MGM RESORTS INTE                   18.17           20.28        -2.11
WWE   WORLD WRESTLIN-A                   13.47           15.53        -2.06

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