Nanex Research

Nanex ~ 19-May-2013 ~ BATS System Issue at Open

At the open of trading on May 19, 2013, BATS system appeared to have issues in a few stocks. SPY was one of them. Fortunately, it looks like BATS found and corrected the problem right away. Which is how it should be. Maybe BATS is a Better Alternative Trading System.

Here's an alert they put out shortly after we noticed the problem:

Charts below compare quote spread and trades from BATS with other exchanges in SPY.


Nanex Research