This is my crude attempt to compare the paper trading to real time portfolio results. The peaks and troughs line up roughly, but I seem to have bigger drawdowns. In addition, paper trading made about $1000 more. I know some of this is due to slippage, and not completely following my exits. I still have this sneaking suspicion that Amibroker is cherry picking stocks somehow. The only way to trade the exact same symbols would be to reduce the number of stocks I follow to a number that never exceeded my allowable number of positions. Then, to get enough market exposure, I would have to increase my position size perhaps 5 to 10 fold. I am afraid, however, that this could work really well or really bad. This has been an ongoing dilemma for me for several years when trying to match the back testing results. As I have said, it uses 2X buying power to go all in, which I do not. This just seems too risky to me. I'm not sure if Amibroker is programmed to know if it were to get a margin call⦠I doubt it. I think it is just a fact that for whatever the reasons, paper trading and back testing results always are better than real life trading.
