Low correlation is the defining market risk
The host argued that the S&P 500's historically low correlation among its top-heavy, highly volatile tech constituents is unsustainable and masks systemic index-level risk.
The argument
The host pointed out that the S&P 500's one-month realized correlation recently hit zero, while the spread between single-stock implied volatility (VIX EQ) and index volatility (VIX) reached a decade high of 25. This indicates that while individual mega-caps are highly volatile, their lack of co-movement is artificially suppressing index-level volatility, creating a fragile environment vulnerable to a correlated shock.
The thesis, stress-tested
✓ What validates it
- ✓A sudden contraction in the VIX EQ to VIX spread
- ✓A sharp rise in one-month realized correlation from near-zero levels
▸ Risks discussed
- ▸A correlated shock lower among mega-caps would rapidly spike index volatility
- ▸The wealth effect from the tech run-up could reverse, hitting consumer spending and GDP
Hear it yourself
"s and p. The relationship between VIX EQ, the single stock constituent VIX, and the actual VIX tells us something about how the market price is correlation among the stocks. Currently, the spread of the VIX EQ to the VIX is 25, essentially a decade high. The spread nearly always widens during earning season, a reflection of the fact that a large degree of the expected moves in the S and P will result"
12:54 · 12:54
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