What is a flight-to-quality correlation regime and how does it affect portfolios?

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AcadiFi · Accepted Answer

Flight to quality (FTQ) describes investor behavior in crises: selling risky assets and buying safe-havens simultaneously. The correlation signature is strong negative correlation between risky and safe assets: equities, credit, EM currencies, and commodities all fall together while Treasuries, gold, CHF, JPY, and the USD all rally together. Within each bucket correlations spike toward 1.0, while cross-bucket correlations push toward -1.0. In March 2020, SPX fell 34%, HY credit spreads blew out 600 bps, EM FX dropped 12%, and oil collapsed - while 10-year yields fell 100 bps, gold rose 10%, and the USD broad index rose 8%. The FTQ regime erases sub-asset diversification (all equities move together, all credits move together) but creates strong safe-haven hedge value. Risk management implications: assume correlation matrix collapses to two blocks under stress. Diversification within the risk-on bloc provides zero benefit in crises; only cross-bloc hedges (buying Treasuries, gold, yen) help. Portfolio stress tests should incorporate FTQ regime with 0.95 within-bloc correlations and -0.85 across-bloc correlations. ```mermaid graph LR A[Crisis] --> B[Sell risk] A --> C[Buy safe] B --> D[Equity
credit
EM] C --> E[UST
Gold
USD] ```

What is a flight-to-quality correlation regime and how does it affect portfolios?

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