# GIS: options-positioning snapshot

Canonical: https://halfonadouble.com/stock/GIS
Data through: 2026-10-02 close
Publisher: Half on a Double

| Published field | Value |
| --- | --- |
| Close (USD/share) | 32.01 |
| Delta neutral (USD/share) | 36.00 |
| Gamma neutral (USD/share) | 35.35 |
| Gamma max (USD/share) | 40.78 |
| Open interest (contracts) | 243,846 |
| Nearest-expiration max pain (USD/share) | 37.50 (2026-10-16) |
| All-expiration max pain (USD/share) | 37.50 |
| Net gamma exposure | -8,612,868 |
| Confirmed GEX flip (USD/share) | 35.35 |
| Call wall (USD/share) | 37.50 |
| Put wall (USD/share) | 32.50 |
| Put/call open-interest ratio | 0.86 |
| Options catalyst-intensity score (0–100) | 63.1 |
| Options directional score (-100 to +100) | -29.2 |
| IV rank | 26.1 |
| Front ATM IV | +37.9% |
| Front-minus-back IV | 5.2 pp |
| Front expected move | +7.4% |
| Front ATM straddle / spot | +5.9% |
| Front 25-delta risk reversal | 13.2 pp |
| Call OI change, 1 session | +6,271 contracts · +5.0% |
| Put OI change, 1 session | +2,332 contracts · +2.1% |
| Call minus put OI growth, 1 session | +2.9 pp |
| Call OI change, 5 sessions | +8,889 contracts · +7.3% |
| Put OI change, 5 sessions | +2,520 contracts · +2.3% |
| Call minus put OI growth, 5 sessions | +5.0 pp |
| Daily call OI change surprise | +0.99σ (252 prior changes) |
| Daily put OI change surprise | +0.46σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.78σ (252 prior changes) |
| Daily open interest change (contracts) | 8,603 |
| Daily open interest change z-score (prior 252) | +0.79σ (252 prior changes) |
| Gamma max distance from close | +27.4% |
| Delta neutral distance from close | +12.5% |
| Prior-year sessions closer to gamma max | 90.9% of 252 |
| Prior-year sessions closer to delta neutral | 94.4% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 16 | +0.1% | -0.2% to +0.4% | 56% | -0.2% to +0.3% | 0.0% |
| above | Day +3 | 16 | -0.9% | -2.1% to +1.1% | 44% | -2.1% to +1.1% | 0.0% |
| above | Day +5 | 16 | +0.2% | -2.3% to +1.6% | 56% | -1.8% to +1.4% | 0.0% |
| above | Day +10 | 16 | +0.5% | -3.0% to +2.3% | 50% | -2.5% to +2.2% | 0.0% |
| below | Day +1 | 16 | -0.3% | -0.6% to +0.6% | 44% | -0.6% to +0.5% | 0.0% |
| below | Day +3 | 16 | +0.6% | -0.5% to +1.7% | 63% | -0.5% to +1.5% | 0.0% |
| below | Day +5 | 16 | -0.7% | -2.8% to +1.6% | 38% | -2.6% to +1.3% | 0.0% |
| below | Day +10 | 16 | +0.1% | -1.8% to +2.1% | 50% | -1.8% to +2.0% | 0.0% |

Returns are close-to-close after the labelled number of subsequent trading sessions. Cohorts require gamma max to be within 10% of the close on both crossing sessions. Historical windows can overlap and are not independent observations, so interval coverage is not guaranteed.

- [Machine-readable snapshot](https://halfonadouble.com/api/v1/tickers/GIS.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/GIS.csv)
- [Complete advanced analysis](https://halfonadouble.com/api/v1/analysis/GIS.json?date=2026-10-02)

An em dash means unavailable, not zero. Values use the same display rounding as the HTML page. This is a current snapshot; full history and individual event paths are on the canonical page.

[Definitions and limitations](https://halfonadouble.com/methodology.md).