Just over a year ago, I decided to stop systematic trading. This wasn't the first time. The problem with my trading systems was that they were overfitted to the data. They worked well for a while but then didn't. I did try one similar approach that is not tuned to the data. Yes, I said that this wasn't for me. But then over this weekend, I thought: "Maybe it is?" :) So, I downloaded a bunch more data and did backtests. It would have done especially well during the COVID-19 crash and OK in other months in the last year. So, I decided to try it today again. I used the Plus500 account, which I had decided to shutdown but hadn't managed to do yet. At least this allowed me to trade a smaller position - only AUD 10 per SPI point. The full size futures contract is AUD 25 per point. Well, I was stopped out for a AUD 960 loss... In the backtesting, getting stopped out is fairly unusual. Initially, the market fell and the short trade was profitable. Then it reversed and had a steep rally.
Most losing trades have to be manually closed at the end of the day. So bad luck on my first trade. I'll try a few more and see how I go...
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