Hey. I feel this is a really informative response. I did not realize such stocks continue trading OTC after delisting. Do you know what happens...
Hey. Thanks for your input. I think these approaches may work great for some applications. However, for backtesting, specifically, I think...
I see your point. I cannot calculate my signal with NaNs present though. So that unfortunately is a non-starter. The 0 price fill has the...
Hey. Thanks for your input. I only trade stocks. Not sure if your concern about not knowing what the current price is is only relevant to...
I wonder how everyone handles missing data during strategy development. Here, I mostly refer to the EOD close data that is missing due to the...
UPDATE: The unrealistic performance I saw was due to a form of look-ahead bias that arose from subtle differences between my backtesting and...
Hey. So I was just going over my forward / backtesting results from today. I noticed that at least today the execution played a big role in the...
It certainly seems so. I don't get how the system can be overfitted so badly though, given that I am backtesting in a walk-forward fashion. I...
I also think it can be survivorship bias of some kind, as I do some extensive data cleaning and exclude some companies from trading based on...
20 bps on each transaction, so probably 40 total. Isn't the spread kind of irrelevant since when live trading I will be using auction orders that...
I do not know. I don't have intraday data, so it would be hard for me to look into. It is not uncommon for these companies to have wide spreads...
Yes! That's what I have been attempting for the past couple of weeks. It was somewhat informative, and I uncovered a few minor issues this way but...
I would have to get back to you on that. But if I remember correctly adding .002 was significant (not sure about destroys through). Is there a...
Not sure I understand. In my backtest I use either the Open, or the Close trade price I have for that day. I don't have Bid / Ask historical...
You might be onto something. Generally, I see better results on the backtest when I use MOO as opposed to MOC. MOC results are also highly...
Yes. I had to look up what WFA stands for but that is exactly how I backtest. I trade daily. So my holding period is at least 1 day.
Thank you guys. I appreciate your input. Here's some additional info about my system: I trade stocks, generally small / micro, illiquid names,...
Hey guys. I have been backtesting and paper-trading my strategy for a few months now. I can't help to notice that my backtest looks more...
Hey thanks for your reply. I am only trading stocks. Some have high margin requirements though, especially for short positions.
I have been continuously having problems with initial and maintenance margin swings. Today was particularly bad, though. Often times, my net...
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