Around 2008 Arbit started using a primitive Ameritrade REST API to make trades. I dropped that out when I moved to the EDGAR Form4 work. More recently I began using Interactive Brokers. This is some early fiddling around to write a simple mean reversion test using S&P futures.

I've written this code a bunch of times since 2011, but seem to forget what I did with it and then write it again.