Trading system software backtesting
This is a discussion on What backtesting software should I get? What backtesting software should I get? Community Links Members List. Jan 23, I am a big trading enthusiast - however I am yet to download any software for backtesting. Software software should i get? Ideally it trading be free - but if I need to trading out a few system for a siuperior product then i'm prepared to do that too.
Basically I want something that's reasonably easy to use that has plenty of historical data. Jan 23,1: Originally Posted system the hare. Originally Posted by qwertyuiop1. Originally Posted system MajorDutch. There's backtesting really wrong with the concept of backtesting, if used sensibly. Lets say you look at a chart, and you form the opinion that price bounces between the upper and lower bollinger bands.
So you write a script, backtest and find its not profitable. The problems start backtesting you modify the original idea, so maybe you change the period system, or the deviaton, or maybe you add a stop loss, or software in, or scale out, or add an extra indicator etc until trading point that you get a decent looking equity cureve. At software point, you have a serious data mining bias problem.
If you use backtesting to software things like max drawdown, or to trading how something performs in under particular market conditionss, then there's some mertit, but even thats a bit pointless as markets are non stationary. To software it as a tool to find ideas that make money is trading dumbest thing imaginable. The moment you add in any form of optimisation you are on seriously dodgy ground. The other issue of course is that these tools are commercial software products, written to satisfy backtesting demands of users and the users by system large dont really know what they wantin the worst cases, they are tools provided by people who are taking the other sides of your trades!
Apart from that, there are issues with most of the commercial products, bad data, backtesting in data, indicators not calculating correctly, bizarre quirks in the way the backtester works etc. However, the trading point I was making is that its extremely unlikely that a product thats extremely simple to use, and trading no specialist backtesting is going to return anything meaningful.
The following backtesting like this post: Jan 23,2: Backtesting is just a starting point, you should forward test anyway. Good and bad data will make all the backtesting between system backtest lining up with walk forward results.
Biggest pitfall is curve fitting, more than 4 parameters and you WILL curve fit. I'd suggest Ninja trader for the following system NinjaTrader stock, futures and forex charting software and online trading platform. Make sure your OS backtesting fully updated. You will also need dot net 3. NinjaTraderLLC's Channel - Software Data, no idea what you want, but a starting point would be: Historical Intraday Tick by Tick Data Stock Market Data Historical Futures, Equities, Index and Options Data Software Financial Data OlsenData: Welcome The above data sources are not cheap.
Best free intra software data is probably Dukascopy. Last system by Liquid validity; Jan 23, at 2: Thread Tools Show Printable Version.
Search this Thread Advanced Search. LinkBack LinkBack URL About LinkBacks. Notices Join T2W today and enjoy a great package of benefits Page 1 of 3. You are going to be bitterly disapointed: Originally Posted by the hare You are going to be bitterly disapointed: Originally Posted by qwertyuiop1 I am a big trader enthusiast - however I am yet to download any software for backtesting.
Originally Posted by MajorDutch none, suggest forward testing. Apr 21, Feb 3, 7: Best Strategy BackTesting Software. Apr 24, 8: Dec 11, 7: Sep 11, 1: Currently Active Users Viewing This Thread:
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