More sleeves does not automatically mean more diversification
If three strategies all lose in the same moments, you do not own three independent sources of return. You own one crowded risk packaged three ways.
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Topic cluster / Quant tool intuitionWhat does cross-strategy correlation actually change?
Cross-strategy correlation changes whether extra sleeves genuinely diversify the portfolio or just add more of the same risk in a different wrapper.
What to remember
- Portfolio volatility
- Drawdown clustering
- How much diversification ratio you actually earn
- Whether rebalancing helps or mostly just redistributes the same risk
What correlation changes in practice
This is why a lower-return sleeve can still improve a portfolio if it behaves differently enough from the rest of the stack.
- Portfolio volatility
- Drawdown clustering
- How much diversification ratio you actually earn
- Whether rebalancing helps or mostly just redistributes the same risk
The trap to avoid
The trap is evaluating each sleeve in isolation, then mentally averaging the Sharpe ratios. Portfolios do not work that way. The interaction terms matter just as much as the standalone sleeve stats.
What the Alphora scenario pages do well
The multi-strategy scenarios make correlation concrete. You can compare a diversified stack, a crowded stack, and a barbell build without pretending they are all the same just because the standalone sleeves look respectable.