S&P 500 Index
Short

S&P500: Vanna Snapback is Over โ€“ Short Gamma Drift Underway Belo

122
๐Ÿ“ Summary
Short gamma regime re-entered after 20Y auction shock. Below 5870, dealers face structural sell pressure from vanna + gamma + charm convergence. Wait for VIX to fall before buying any dip.

๐Ÿ“Š Price Levels to Watch
๐Ÿ”บ Upside Breakout Trigger: 5885
โ†’ Reclaiming this level flips dealers back toward neutral gamma, opening short-covering squeeze potential toward 5925โ€“5950

๐Ÿ”ป Downside Acceleration Zone: 5870
โ†’ Structural pressure zone. Vanna-driven delta hedging intensifies. Below here, the market enters a volatility expansion regime

๐Ÿงฑ Gamma Walls:

Call Wall: 5950

Put Walls: 5875 / 5850 / 5800

๐Ÿ” Structural Regime Analysis
Macro trigger:

Last nightโ€™s 20Y Treasury auction was weak, triggering a sharp risk-off move.

SPX broke 5935 โ†’ 5875 in 15 mins, entering short gamma zone (GEX ๐Ÿ”ด๐Ÿ”ด).

Volatility Regime Shift:

VIX spiked >20, breaking the downward vol trend that supported recent vanna snapback rallies.

This marks the end of volatility compression. Vol expansion regime is in effect.

Dealer Hedging Mechanics:

Below 5870, Vanna pressure increases sharply as price declines + IV rises.

Dealers short puts must delta hedge by selling ES, amplifying downside in a feedback loop.

No Dip Buy Until Vol Stabilizes:

VIX must fall or implied volatility flatten before any long bias resumes.

Until then, treat rebounds as short entries, not long setups.

โš ๏ธ Volatility Metrics Supporting This View
GEX: ๐Ÿ”ด๐Ÿ”ด (Negative Gamma on both 0DTE and aggregate expiries)

IVx 5D Change: +4.04% โ†’ Implied volatility rising into the drop

PUT$: 85.6% โ†’ Option flow heavily defensive (puts > calls)

Skew: High, supporting demand for tail risk hedging

๐Ÿงญ Tactical Strategy
Short bias below 5870, scale-in entries on failed intraday bounce attempts

First targets: 5850 โ†’ 5800 (Put gamma cluster + dealer momentum zone)

Invalidate short above 5885 (where short gamma neutralizes)

๐Ÿ“Œ Final Note
We are now inside a third-order Greeks-driven sell zone:
Speed โ†‘, Color โ†‘, Ultima โ†‘ โ†’ this is a self-reinforcing volatility trap.
No long setups are valid until structural vol metrics cool down.

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