The S&P-500® Index Skew Steepens on Defensive Year-End Flows

Ed Tom
December 16, 2024

Link to Report: Macro Volatility Digest

WHAT STANDS OUT:

  • Interest rate volatility led the across-the-board advance in cross-asset volatilities last week driven by the increase in the PPI for the 2nd consecutive month (PPI=0.4% vs 0.2% consensus).  Despite indications of lingering inflation, Fed Fund futures are pricing in a steadily higher chance of a rate cut (93% now vs 87% last week and 62% 2 weeks ago). Crypto demand continues unabated with the 10 largest Bitcoin ETF holdings within the Cboe CBTX recording its 12th consecutive inflow totaling $18B. As the alt-asset forges ahead into uncharted territory, options sentiment remains bullish with CBTX call open interest outpacing puts by 2:1.
  • Despite both the extraordinary low equity market realized volatility with 1M S&P 500 realizing 6.6% and a seasonally stable outlook for the remaining weeks of the year, vol-of-vol has steadily increased over the last week with the VVIX Index rising 10 pts from 45th percentile levels to 97 (70th percentile) stemming from a bid in VIX 15-strike, Dec 18 calls (coinciding with the Dec FOMC meeting).  Skew has reversed course and has steepened into year-end, rising from 65th percentile levels to 85th percentile highs. 
  • In concurrence with the steepening skew, recent flows have leaned defensive with 160K in new 6000-strike (25-delta) put contracts opened as the S&P eases off from all-time highs. That said, overall positioning within the S&P options complex for the remainder of the year remains net bullish with delta-equivalent December expiry call options open interest outnumbering puts by 3.5:1

Chart: Despite Recent Defensive Flow, High Net Dec Call Interest Suggests Bullish Year End Positioning (Delta-adjusted open interest.)

Source: Cboe

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