Gamma gauge
When dealers are long gamma, their hedging leans against the move and the tape stays calmer. When they are short gamma, their hedging chases it, and up days and down days both stretch. This is where each major stood at the Wed, Sep 30 close. Free, no login, rebuilt every night.
2 of 3 index books are negative gamma
The strong signal is all three short gamma at once: the next session's SPY range then beat its own 60-day normal about 75% of the time, against about 35% otherwise. When they disagree, the complex gives no read. How we measured it
| Ticker | Regime | Close | Put wall | Call wall | Flip |
|---|---|---|---|---|---|
| NVDA | Calm | 228.38 | 220 | 227.5 | 227.5 |
| TSLA | Calm | 354.81 | 350 | 360 | 370 |
| AAPL | Calm | 333.02 | 325 | 340 | 340 |
| MSFT | Calm | 512.9 | 490 | 505 | 505 |
| AMZN | Calm | 249.15 | 240 | 260 | 255 |
| META | Calm | 725.18 | 700 | 740 | 585 |
| GOOGL | Calm | 344.08 | 335 | 360 | 350 |
| AMD | Calm | 611.76 | 600 | 637.5 | 500 |
| AVGO | Calm | 351.19 | 335 | 365 | 370 |
| PLTR | Calm | 187.05 | 175 | 200 | 195 |
| MU | Calm | 1,065.11 | 1,000 | 1,100 | 1,100 |
| COIN | Calm | 186.41 | 180 | 202.5 | 165 |
| NFLX | Calm | 69.58 | 69 | 72 | 76 |
Walls are where hedging is heaviest, not places price is pulled to. Graded against random levels the same distance away, they do no better, so we never call them magnets. The flip is the price where the regime changes sign. Tap any ticker for its full closing levels.
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Gamma is an estimate of dealer hedging pressure from the closing options book, not a forecast of direction. Not investment advice.