Available at http://marketsmedia.com/letter-to-the-editor-from-stephane-tyc/ Letter to the Editor from Stéphane Tyc Dear Editor, We appreciate your supportive comments on our proposal to use trade execution data to help investors solve the issue of best execution (OPINION: How to Measure Best Execution? June 1, 2015). Simple data standards can change the industry and be cost efficient. However, we disagree with your conclusion that exchanges will resist this effective solution because they make a significant fraction of their revenue from […]