Running two strategies at once taught me about capital collision!
Both of mine trade momentum. Different timeframes, so I figured they'd stay out of each other's way. Nope! On a strong day they both fired on overlapping names and I ended up with roughly double the exposure I'd sized for on a single strategy.
Nothing broke, nothing lost — but my risk was quietly twice what I thought it was, which is exactly the kind of thing that only shows up on a bad day.
Now I cap total exposure at the account level, not per strategy. Learned that one cheap!
