Encountered a big loss in this otherwise benign algo that I was starting to work on. Checked my daily positions and gains for that time period and found a loss on stock EEQ. Googled EEQ and just found a regular company operating as usually during that time period. No de-listings, no splits, or any other issue I could think of. After I banned the algo from purchasing EEQ, it behaved again. Not sure if this is happening for everyone, but thought I would share.