Quote from stefan_777:
No. The 25K minimum applies only to brokers who clear your trades in the U.S. It doesn't matter whether they're U.S or Canadian shares.
Most of the Canadian brokers clear their trades in Canada, with the main exception of Interactive Brokers Canada, which clears in the U.S, so the PDT 25k minimum rule applies with IB Canada.
Questrade is probably your best bet outside of IB Canada. No PDT 25k minimum at Questrade. Decent commissions compared to brokerages south of the border. Way better than any of the Canadian banks offerings.