Not sure what to make of the negative entries in the corrections file:
http://www.tmxmoney.com/en/itmreport/tsxv_itmreport.txt
CORRECTION_DATE SYMBOL TRADE_DATE CHANGE_IN_BUY_VOLUME CHANGE_IN_SELL_VOLUME CHANGE_IN_BUY_VALUE CHANGE_IN_SELL_VALUE NUM_BUY_CORRECTIONS NUM_SELL_CORRECTIONS CURRENCY
2015-06-22 GNH 2015-06-19 0 13500 0.00 6075.00 0 1 CAD
2015-06-22 IVI 2015-06-19 50000 0 2000.00 0.00 1 0 CAD
2015-06-22 PNE 2015-06-19 22700 0 32007.00 0.00 2 0 CAD
2015-06-22 PTK 2015-06-22 -40000 0 -62010.00 0.00 4 0 CAD
Does a negative entry represent a reversal of the purchase?