Recent content by entrade

Apologies for the naive question, but how is this done without getting eaten alive by brokerage fees?

I read this thread over the weekend and saw GE gap up this morning. It does look "cheap" at this price (around 12.5), however the buying volume looks a bit low. Do you think "smart money" is accumulating and trying to keep low profile? What are the mechanics of this morning's gap up?

Apologies for the naive question. I'm a programmer and have some historic data and a strategy I'd like to vet. I realize there are many nuances to backtesting, mainly centered around the various biases. However I'm wondering if backtesting, at its essence, is simply running historic data through...