Quote from SteveH:
While I don't trade the Euro Dollar futures (Globex 6E contract), I hand-checked what stop I would need to trade it intraday on a mid-level volume chart (350-400 contracts per price bar) with a nice volatility study. I found all of the winning trades, recorded the MAE (Maximum Adverse Excursion...aka the drawdown) and the MFE (Maximum Favorable Excursion...minus 1 pip)
Sure enough, it matches what cornixforex is saying. A 6 pip stop would have kept me in 95% of the winning trades.
That same study on the CL, which I do trade, requires a 10 tick stop to capture 94% of the winners. The average winner on the 6E was 18 pips ($225) and 29 ticks ($290) on the CL. About the same on a ratio basis. 50% of the 6E winners are 12+ pips while 61% of the CL winners are 20+ ticks. No great surprise. The CL is more volatile and is a better reward for the risk on a per contract basis.
Here's the bigger picture. EVERY winner has a measurable MFE / MAE. Focus on THAT when you're researching your possible edges. You know what all the winners are paying out and what you had to risk to capture a significant pct of them.
Look. We all know that the hard part is finding a way for the losers to not overcome the winners on a monetary basis (duh!). But from reading trading forums, I get the impression that the majority of trader hopefuls cannot even tell you something similar to the above. The MAE stat will stand out in your research and tell you what your best stop area is to catch 90-95% of the winning trades. For example, On the CL, everything which works out well for me on a 5 min chart and below over 100's of trades doesn't need more than 10-15 ticks [heck, 65% of the winners in the study above only need a 6 tick stop!]. Any more and my risk of throwing money away needlessly goes up because the few big winners I may get from a bigger stop is going to get eaten up by the losers on the average trade which never needed that much of a stop to begin with.
Summary to newbies: Your winners tell you how much to lose on the losers.