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S&P 500 Changes in Short Interest as Percentage of Float

The following tables show companies listed in the S&P 500 Index that have the largest changes in short interest as a percentage of shares available for trading as of the April 30 settlement date.

TOP 25 INCREASES IN SHORT INTEREST VS FLOAT


                                      April 30        April 15   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Increase % 
=============================================================================
NFLX  NETFLIX INC                        19.62           15.09         4.53
DGX   QUEST DIAGNOSTIC                    9.78            5.51         4.27
AAPL  APPLE INC                           4.43            2.14         2.29
CAT   CATERPILLAR INC                     4.50            2.53         1.97
FDO   FAMILY DOLLAR ST                    8.05            6.18         1.87
NFX   NEWFIELD EXPLORA                    6.05            4.39         1.66
JOY   JOY GLOBAL INC                      9.73            8.07         1.65
CLF   CLIFFS NATURAL R                   23.67           22.13         1.54
TDC   TERADATA CORP                       3.91            2.51         1.40
LNC   LINCOLN NATL CRP                    6.44            5.35         1.09
PHM   PULTEGROUP INC                      7.74            6.68         1.07
DO    DIAMOND OFFSHORE                   11.06           10.02         1.04
WU    WESTERN UNION                       5.70            4.80         0.91
FCX   FREEPORT-MCMORAN                    4.32            3.46         0.87
TRIP  TRIPADVISOR INC                    10.66            9.84         0.82
MYL   MYLAN INC                           8.71            7.91         0.80
DHI   DR HORTON INC                      11.56           10.79         0.77
TSO   TESORO CORP                         4.48            3.75         0.73
FLIR  FLIR SYSTEMS                        3.00            2.31         0.70
AA    ALCOA INC                           8.94            8.31         0.62
PBCT  PEOPLE'S UNITED                     6.40            5.78         0.62
CTXS  CITRIX SYSTEMS                      1.88            1.28         0.60
WHR   WHIRLPOOL CORP                      2.98            2.41         0.57
APOL  APOLLO GROUP-A                     21.20           20.65         0.56
ACN   ACCENTURE PLC-A                     1.61            1.06         0.55

TOP 25 DECREASES IN SHORT INTEREST VS FLOAT

                                      April 30        April 15   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Decrease % 
=============================================================================
GME   GAMESTOP CORP-A                    33.99           38.28        -4.29
JCP   J.C. PENNEY CO                     34.44           38.68        -4.23
FSLR  FIRST SOLAR INC                    28.16           30.64        -2.47
CMG   CHIPOTLE MEXICAN                   10.34           12.71        -2.37
SWY   SAFEWAY INC                        20.96           22.99        -2.02
MU    MICRON TECH                         6.51            8.39        -1.88
FFIV  F5 NETWORKS                         3.97            5.82        -1.85
STZ   CONSTELLATION-A                     3.13            4.67        -1.54
FLR   FLUOR CORP                          2.40            3.61        -1.21
GPS   GAP INC/THE                         1.87            2.93        -1.06
S     SPRINT NEXTEL CO                    1.27            2.31        -1.04
TIF   TIFFANY & CO                        7.27            8.30        -1.03
AMD   ADV MICRO DEVICE                   15.89           16.91        -1.02
MHP   MCGRAW HILL FINA                    3.31            4.32        -1.01
SPLS  STAPLES INC                        10.26           11.25        -0.99
HRS   HARRIS CORP                         3.76            4.73        -0.97
DNR   DENBURY RESOURCE                    4.65            5.62        -0.97
WPX   WPX ENERGY                          6.46            7.42        -0.97
GRMN  GARMIN LTD                          9.19           10.15        -0.96
DTV   DIRECTV                             2.04            2.95        -0.92
UNH   UNITEDHEALTH GRP                    1.29            2.17        -0.88
GCI   GANNETT CO                          9.85           10.71        -0.86
LM    LEGG MASON INC                      9.02            9.88        -0.85
THC   TENET HEALTHCARE                    6.26            7.11        -0.85
PH    PARKER HANNIFIN                     1.49            2.33        -0.85

-- Bloomberg News

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