The following U.S. companies reported negative earnings surprises today. This list ranks percent surprises of actual earnings to earnings estimates.

Earnings estimates provided by Bloomberg.

TICKER                                             EST          PRICE   PRICE
SYM     COMPANY               Q12    Q11   % CHG    Q12   % CHG    CHG   % CHG
========================================================================
MSPD#   MINDSPEED TECHNO    -0.18   0.08      NM  -0.15   -20.0  -0.09   -3.41
STBA    S & T BANCORP        0.30   0.48   -37.5   0.37   -18.9  -0.67   -3.68
PETS    PETMED EXPRESS       0.20   0.22    -9.1   0.23   -13.0  -1.62  -14.39
WWD#    WOODWARD INC         0.40   0.51   -21.6   0.45   -11.1  -1.08   -3.15
VLTR#   VOLTERRA SEMICON     0.32   0.28    14.3   0.35    -8.6   0.02    0.08
SANM#   SANMINA-SCI CORP     0.26   0.42   -38.1   0.28    -7.1  -0.23   -3.10
SFG#    STANCORP FINL        0.51   0.61   -16.4   0.54    -5.6  -0.02   -0.06
MCD*    MCDONALDS CORP       1.32   1.35    -2.2   1.38    -4.3  -2.64   -2.88
PRK#    PARK NATL CORP       1.10   1.22    -9.8   1.15    -4.3  -0.45   -0.65
TICKER                                             EST          PRICE   PRICE
SYM     COMPANY               Q12    Q11   % CHG    Q12   % CHG    CHG   % CHG
========================================================================
CSBC#   CITIZENS SOUTH B    -0.07  -0.03  -133.3   0.01      NM  -0.03   -0.44

* - Company in Standard & Poor’s 500 Index.
# - Company reported in the late afternoon.

To contact the reporter on this story: Wendy Soong in New York at at csoong@Bloomberg.net.

To contact the editor responsible for this story: Alex Tanzi at at atanzi@Bloomberg.net