Premium leaves a Fed week - Options Brief - 27 October 2026

The options market is pricing less index-wide risk for a week that still contains major central-bank decisions and corporate catalysts, while dispersion suggests greater differentiation between individual stocks.

• The S&P 500's Friday expiry premium fell to 104.90 points, or 1.37%, from 135.65 points with one fewer session remaining; roughly 16 points of the decline exceeded normal time decay.
• Monday's S&P 500 rally of 0.70% to 7,676.77 was led by Tesla, Nvidia and Microsoft, while Meta, Apple and Alphabet fell, and the equal-weighted index rose only 0.35%.
• One-day implied volatility dropped to 10.49 while the three-month measure remained near 19.94; the VIX1D/VIX ratio fell from 0.86 to 0.57, even as SKEW stayed elevated at 150.97.
• Implied correlation fell 7.00% to 13.95 and dispersion rose 2.95% to 38.02, while a constant universe of 524 underlyings showed median implied-volatility rank falling from 47.7 to 45.9, mainly in index products rather than operating companies.
• Event pricing is uneven: Novo Nordisk's implied move is 7.1% versus a 5.0% average over its last eight reports, while Microsoft's is 4.7% versus a 7.0% history; the week also includes the Federal Reserve, ECB and Bank of Japan.

Takeaway: The market may be shifting from pricing one broad index event to pricing separate company events, but outright index puts and volatility calls bought into Monday's rally signal that investors still want protection against the central-bank and earnings calendar.