Settlement
Date Short
Interest Avg Daily
Share Volume Days
to Cover
Sep. 14, 2007 1,888,026 187,747 10.06
Aug. 15, 2007 1,713,111 189,656 9.03
Jul. 13, 2007 2,043,758 191,063 10.70
Jun. 15, 2007 2,172,530 217,659 9.98
May 15, 2007 2,857,400 410,206 6.97
Apr. 13, 2007 3,683,759 152,015 24.23
Mar. 15, 2007 4,472,530 226,980 19.70
Feb. 15, 2007 4,089,324 448,359 9.12
Jan. 12, 2007 3,932,302 692,582 5.68
Dec. 15, 2006 4,016,854 260,780 15.40
Nov. 15, 2006 3,714,556 277,239 13.40
Oct. 13, 2006 3,615,350 197,725 18.28
Data source: The Nasdaq Stock Market, Inc. for NASDAQ stocks. EDGAR Online, Inc.
for non-NASDAQ stocks.