You could check the daily short volume at http://regsho.finra.org/FORFshvol20120702.txt http://regsho.finra.org/regsho-Index.html by clicking ORF Date|Symbol|ShortVolume|ShortExemptVolume|TotalVolume|Market 20120702|IMDS|4956559|0|23771076|O On Monday 4,956,559 were short You could also check past months , days .It is updated daily about one hour after the close