After frequent regime shifts, the close entered -γ, with dealer positioning turning short, favoring trend continuation.
At the open, ES was near 7575, below HVL 7579.85, with net GEX at 90 and net DEX at 135, indicating dealers were in a +gamma regime. Price oscillated around HVL, forcing dealers to hedge in reverse, creating a gamma pin within the range [7574.88, 7610.75] for 240 minutes. At 09:32, price first crossed 0Γ 7581.59, switching dealers to +γ, but then crossed 0Γ 7587.89 again at 09:58, switching to -γ, showing frequent regime shifts. The key intraday turning point was at 10:16, when DEX 1m net changed +473 (3.9σ), showing strong call preference, pushing price to a high of 7627.56. However, Call Wall at 7605.39 failed after being touched 13 times, and price couldn't hold, with dealers switching repeatedly between +γ and -γ, totaling 27 regime_shift events. At the close, price settled at 7610.64, net GEX dropped to 50, and net DEX turned to -130, indicating dealer positioning shifted from +γ to -γ. Call Wall migrated to 7610.39, Put Wall to 7560.39, and both HVL and 0Γ moved slightly up to 7580.13, with the market entering a -γ regime, favoring trend continuation.
After repeated battles around HVL, NQ broke upward and closed in the -γ zone, with dealer positioning turning negative gamma.
At the open, NQ opened near HVL 30307.01 with net GEX at 0, leaving dealers gamma neutral. After the first touch of HVL at 09:33, DEX 1m showed a -7.4σ put bias at 09:33, with price dipping to a low of 30290.48. From 09:51 to 10:48, price formed a gamma pin in the 30290-30440 range, with dealers switching between +γ and -γ multiple times (09:58, 10:08, 10:13, 10:17, 10:21), indicating repeated battles around HVL. The second gamma pin began at 10:54 (119 minutes), with price gradually rising and breaking above HVL 30435.47 at 11:02. In the afternoon, price touched near +Γ OI 30584.28 multiple times (12:53, 13:03) but failed to break through effectively, eventually closing at 30563.93. Net GEX turned to -30, net DEX was -880, leaving dealers in an overall -γ state.
VIX closed lower at 16.00, with a late-session gamma pin at 15.72-15.79, achieving short-term balance after intense long-short battles.
VIX opened at 16.29, with Call Wall at 8.50, Put Wall at 8.00, 0Γ at 8.25, and dealers in a +γ regime, indicating low expectations for short-term volatility. However, shortly after the open, at 09:32, a reverse gamma squeeze occurred with a 1.04% drop within 5 minutes. At 09:34, DEX 1m net change was -0 (-3.8σ), showing net put preference as the market quickly shifted to risk-off. At 09:34, price crossed 0Γ at 16.59, flipping dealers from +γ to -γ, entering a negative gamma state with increased volatility amplification risk. Subsequently, at 09:35, price crossed 0Γ again at 14.50, flipping dealers back from -γ to +γ. The market experienced two regime switches within 15 minutes, leading to extreme volatility. Intraday trading was active with frequent gamma squeeze events. At 09:50, a positive gamma squeeze occurred with a 0.81% rally within 5 minutes, but at 10:00, a reverse gamma squeeze followed with a 0.74% drop within 5 minutes, showing intense long-short battles. At 10:18, DEX 1m net change was -0 (-9.7σ), with net put preference reaching extreme levels and tail-risk being significantly repriced. At 10:58, price crossed 0Γ at 16.50, flipping dealers back to -γ, but at 11:14, DEX 1m net change was +0 (4.9σ), showing net call preference and a brief market sentiment recovery. At 13:25, another reverse gamma squeeze occurred with a 0.88% drop within 5 minutes. From 13:53 to 14:58, a gamma pin formed, with VIX oscillating narrowly in the [15.72, 15.79] range for 66 minutes, indicating option sellers successfully defended the 15.50-16.00 area. At the close, VIX was 16.00, with Call Wall migrating to 17.00, Put Wall to 16.00, 0Γ to 16.50, +Γ OI at 17.00, and -Γ OI migrating from 15.00 to 16.00. Dealers ended the session in a +γ regime (0Γ 16.50 > VIX 16.00), but Call Wall at 17.00 and Put Wall at 16.00 formed two-way resistance. The late-session gamma pin indicated short-term balance in the 15.72-15.79 range, but multiple regime switches throughout the day and extreme DEX signals (-9.7σ) suggest elevated vol-of-vol, with VVIX potentially breaking above 100, making volatility itself unstable.
This is a historical post-close recap for information and education only — not investment advice.