Subject: File No. 10-222
From: David W Sjoding, MPA

March 8, 2016

These comments are in support of IEX's application, as amended, to become a fully licensed U.S. national securities exchange. I am part of the TIAA-CREF pension system and tried to specify that my stock be sold through IEX in order to avoid frontruning (having my order impacted by certain types of speed enabled trading strategies- aka latency arbitrage). TIAA-CREF denied my request. The fact that this gaming is allowed by many of the the U.S. stock market exchanges (especially the NASDAQ) should be stopped totally by the SEC. Short of that necessary fix. I request that the SEC approve IEX's application, as amended, to become an exchange with a protected quotation. This will be step in the right direction. I deeply do not appreciate being "frontrun" when buying or selling stock. I especially don't appreciate stock exchanges that enable it to happen. The SEC needs to protect long term investors over short term professional intermediaries. It is my intention to share my concerns with both of my U.S. Senators - Cantwell and Murray.