In 2012 IIROC and CSA removed a trading rule known as the "tick test", which restricted short selling to neutral or sales to positive price changes at the time of the sale. These changes were applied not only to the main listing venue of TSX Venture Exchange, but are equally applied across all Canadian trading venues, of which there are 14 today, reducing TSX Venture's ability to effect any change. Since removal of the tick test, the Canadian markets have evolved, and there now exists a dynamic where short selling activities, high frequency trading, and algorithms are exploiting the lack of a tick test to the detriment of Canada's junior markets. We call on CSA and IIROC to evaluate re-instituting the tick test.