Top 10 companies with significant 3-month increases in short sales (as of June 23)

COMPANY TICKER INCREASE IN SHORT POSITION OVER LAST THREE MONTHS ($MIL)
CN Railway CNR-T $1,365.1
CP Railway CP-T $1,111.5
CIBC CM-T $639.8
Enbridge Inc. ENB-T $487.9
TC Energy Corp. TRP-T $329.7
Power Corp. Canada POW-T $294.0
Blackberry Ltd. BB-T $236.4
Imperial Oil Ltd. IMO-T $232.0
Great West Lifeco Inc. GWO-T $227.9
West Fraser Timber Co. WFG-T $225.4