CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 64 % of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

How reliable is a system in the long term?(BACKTESTING)

Again, apologies for the English, clearly I use a translator.

I start this topic because I’ve seen Darwins who start out very well for 1 or 2 years and then fall off and disappear out of nowhere.

How long or/and how many operations should a backtesting have?
10 years? 5 years? 20 years?
100 op? 1000 op?

Then if you backtest for 8 years and end up positive every 8 years, is it a reliable strategy? Or was it just a strategy that worked for those 8 years that passed and it won’t work for the future?

I’m touching on this subject because I read something the fellow wrote @CavaliereVerde
And so that doubt has come to me.

Translated with

A post was merged into an existing topic: [Strategy Development] Optimization: Norms, Pros & Cons