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Search: Posts Made By: kevinkdog

Forum: NinjaTrader

June 18th, 2014, 05:21 PM

Replies: 27

How can a strategy be profitable when backtested but not when actually used?

Views: 4,389

Posted By kevinkdog

Your cynicism is VERY well founded!

Your cynicism is VERY well founded!

Forum: NinjaTrader

June 18th, 2014, 10:23 AM

Replies: 27

How can a strategy be profitable when backtested but not when actually used?

Views: 4,389

Posted By kevinkdog

I believe it is because most are developed the...

I believe it is because most are developed the wrong way. Too many rules, too much optimizing, improper data sampling and data mining, improper accounting of slippage and commission, bad assumptions...

Forum: NinjaTrader

June 18th, 2014, 10:12 AM

Replies: 27

How can a strategy be profitable when backtested but not when actually used?

Views: 4,389

Posted By kevinkdog

I'd agree completely with your first sentence, if...

I'd agree completely with your first sentence, if you add the word "forever" to the end of it. Mechanical systems can work for a good amount of time before they don't.

Your point is a very good...

Forum: NinjaTrader

June 9th, 2014, 01:18 PM

Replies: 27

How can a strategy be profitable when backtested but not when actually used?

Views: 4,389

Posted By kevinkdog

There are ways to trick the backtest software. ...

There are ways to trick the backtest software. Also, if you heavily optimize, your results will never be the same going forward.

Showing results 1 to 4 of 4

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