<![CDATA[Forex Software — In Sample + OOS vs 100% In Sample: misleading results from comparison!]]> https://forexsb.com/forum/topic/9827/in-sample-oos-vs-100-in-sample-misleading-results-from-comparison/ Mon, 02 Sep 2024 12:00:08 +0000 PunBB <![CDATA[In Sample + OOS vs 100% In Sample: misleading results from comparison!]]> https://forexsb.com/forum/post/81058/#p81058 Dear Popov,
this happen always in my test.

By generating strategies with the following data:

TEST 1
4 weeks (but it could be another data period)
M15
OOS 50%
Method: SQN or Net Balance

the portfolio results are impressive for the OOS 2 weeks. The balance is growing and it seems to have find a profitable portfolio generation approach.

TEST 2
BUT, if you generate only in SAMPLE for the 2 weeks (no until today but let' say until 2 weeks ago), the portfolio result is highly negative, compared to test 1.

Of course I've used the sames acceptance criteria: Test 1 In Sample = Test 2 Complete Backtest.

Same weeks of course.

]]> Mon, 02 Sep 2024 12:00:08 +0000 https://forexsb.com/forum/post/81058/#p81058