# NVDA — Overview · GammaGrid demo

**Gamma weather: Fair.** Positive gamma, but the flip is within reach — the damping may not hold. *(next 26 days · 6 expiries)*

| Level | Value |
|---|---|
| Price | 218.29 |
| Call wall | 250.00 |
| Put wall | 200.00 |
| Gamma flip | 222.69 |
| Net GEX | 162.7 M |

## Put/call ratio

At the latest collection: by volume **0.57**, by open interest **0.88**. The page draws the ratio over 365 days and the implied-volatility surface.

## About these numbers

Computed by GammaGrid from the NVDA options chain — dealer gamma exposure, max pain and the walls are GammaGrid's own arithmetic over open interest; the source data is delayed. Collected 2026-09-13T04:11:44.824639 UTC; this page follows the collection, roughly every fifteen minutes while the market is open.

Other views of NVDA: [Max Pain / GEX](https://app.gammagrid.io/demo/t/NVDA/max-pain.md) · [GEX Heatmap](https://app.gammagrid.io/demo/t/NVDA/heatmap.md) · [Volatility (IV)](https://app.gammagrid.io/demo/t/NVDA/volatility.md).

Canonical page: <https://app.gammagrid.io/demo/t/NVDA> · The demo shows the free list only; a GammaGrid account watches any US-listed ticker with options, replays earlier collections and opens every contract: <https://app.gammagrid.io/>