fwiw...

Source: http://infoventure.tsx.com/TSXVenture/TSXVentureHttpController?GetPage=ShortSummary&SECURITY_ID=219671&MARKET_ID=CDNX&SEC_SYM_SID=1&HC_FLAG1=Y&HC_FLAG1=Y

Short Summary

Petroamerica Oil Corp. ( PTA )

 

As of Short Volume Change In Volume
15/Nov/2012 1,614,084 1,506,100  +
31/Oct/2012 107,984 -179,433  -
15/Oct/2012 287,417 234,299  +
30/Sep/2012 53,118 -150,382  -
15/Sep/2012 203,500 115,047  +
31/Aug/2012 88,453 -5,783,393  -
15/Aug/2012 5,871,846 5,438,493  +
31/Jul/2012 433,353 253,200  +
15/Jul/2012 180,153 84,500  +
30/Jun/2012 95,653 -52,862  -
15/Jun/2012 148,515 60,508  +
31/May/2012 88,007 -159,130  -