We study a unique data set of all client trades that the six largest Canadian dealers sent to U.S. equity markets in 2014-2015. Contrary to the public perception, Canadian dealers use U.S. markets only lightly and send less than 5% of their $-volume to the U.S.; on 60% of security-day...

On 23 April 1997, the Toronto Stock Exchange closed its trading floor, making it at that time the second-largest stock exchange in North America to choose a purely electronic trading environment for its equities. Exploiting this natural experiment, we find that the move to electronic trading...

We find that US cross-listing of Canadian stocks enhances domestic high-frequency trading (HFT) activity in the form of both opportunistic trading and market-making. First, US cross-listing boosts HFT low-latency cross-border arbitrage. This highly correlated HFT arbitrage activity across...