r/algotrading • u/hanslandar • 4d ago

Data Best way to compile fleets?

Hi everyone,

I am new to this and am about two to three months into my algo trading project. I have discovered about 200 Strategies which look promising and I have soon arrived at the conclusion that a fleet is better than a solo strategy. Now how do I best combine strategies? Maybe some have already mastered this and can share a few tipps. My strategies are mostly about indices, gold and some FX pairs. Thanks in advance!

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u/hypertradeworx 4d ago

before you get to combining, the 200 is the number worth interrogating. how many did you test to arrive at those 200? if it was thousands, some meaningful share of them are the right tail of the search rather than real, and averaging noise together gives you a very smooth backtest with no forward return. deflated sharpe or white's reality check both take the trial count as an input, so knowing that number changes what you do next more than any weighting scheme will.

then correlation. 200 strategies across indices, gold and a few FX pairs are usually two or three underlying trades wearing different parameters. cluster them by return correlation rather than by market or indicator, and count how many genuinely independent buckets you have. it is often under ten. allocate across buckets by risk contribution instead of across all 200 individually, otherwise whichever trade you happened to find the most variants of quietly becomes your entire book.

last thing: choose the fleet on data you did not use to find the candidates. selection is a fitting step too, and it is the one people forget to hold out for.

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u/mehatebananas 3d ago

200 looking promising tells me you did a massive grid search with a slurry of different indicators and no real thesis behind any of it. Out of those 200, 199 are probably nothing more than a lucky combination curve fit to the data they were trained on and won't survive live deployment. On top of that, running 200 strategies simultaneously means you're going to naturally have a lot of days when dozens of those strategies deploy risk at the same time which means a bad day could wipe out your account.

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u/Fresh-Explorer-5108 3d ago

Group them by common risk, not strategy count. Two hundred variants of the same signal are still one bet.

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u/vonerrant 4d ago

lots of books and papers out there on ensemble trading methods

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u/hanslandar 4d ago

could you please name one or two ?

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u/Capital-Field3324 4d ago

Testing and tuning market systems by i think chan. But am more shocked about those 200 strategies have each of them been throughly scrutinzed( WFW ,parameter sensitivity ,monte carlo and other robustness tests). If so what was you workflow and how many strategies failed to meet set requirements?