Optimizer not finding the optimum parameters

[cunparis]

I have stumbled upon this lately and several times, since I got it again tonight I thought I'd post here.

I run the optimizer with various ranges and it reports back the optimum strategies. But what I've found is that when I just try ad-hoc parameters myself, sometimes the results are better. How is this possible? I assume the optimizer will run all the combinations, and in that case it shouldn't be possible. Since I'm finding better results myself, I think the optimizer didn't try that combination (even though it's in the ranges I specify).

For example, I have optimizer use 50-75 and it reports back 70 is optimal. I run tests and I find that using 60 produces 2x the profit.

Just wondering if others have seen this. I don't mind optimizing myself, I'm just curious what's going on.

[NinjaTrader_Ben]

Hello,

Make sure you are:

- Optimizing on the same thing. For example, max profit.
- Using the default optimizer algorithm.

[cunparis]

Hello,

Make sure you are:

- Optimizing on the same thing. For example, max profit.
- Using the default optimizer algorithm.

I was optimizing for max profit factor (the default) so that explains it. I didn't realize there was an option. Thank you.