# S: options-positioning snapshot

Canonical: https://halfonadouble.com/stock/S
Data through: 2026-10-16 close
Publisher: Half on a Double

| Published field | Value |
| --- | --- |
| Close (USD/share) | 21.58 |
| Delta neutral (USD/share) | 17.92 |
| Gamma neutral (USD/share) | 13.14 |
| Gamma max (USD/share) | 24.75 |
| Open interest (contracts) | 216,274 |
| Nearest-expiration max pain (USD/share) | 25.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 19.00 |
| Net gamma exposure | 8,826,828 |
| Confirmed GEX flip (USD/share) | 13.14 |
| Call wall (USD/share) | 25.00 |
| Put wall (USD/share) | 25.00 |
| Put/call open-interest ratio | 0.30 |
| Options catalyst-intensity score (0–100) | 41.8 |
| Options directional score (-100 to +100) | 19.4 |
| IV rank | 54.2 |
| Front-minus-back IV | 1.7 pp |
| Front 25-delta risk reversal | 0.6 pp |
| Call OI change, 1 session | -17,308 contracts · -9.4% |
| Put OI change, 1 session | -13,047 contracts · -20.6% |
| Call minus put OI growth, 1 session | +11.2 pp |
| Call OI change, 5 sessions | -7,175 contracts · -4.1% |
| Put OI change, 5 sessions | -4,700 contracts · -8.6% |
| Call minus put OI growth, 5 sessions | +4.4 pp |
| Daily call OI change surprise | -1.26σ (252 prior changes) |
| Daily put OI change surprise | -3.36σ (252 prior changes) |
| Daily call-minus-put growth surprise | +3.11σ (252 prior changes) |
| Daily open interest change (contracts) | -30,355 |
| Daily open interest change z-score (prior 252) | -1.76σ (252 prior changes) |
| Gamma max distance from close | +14.7% |
| Delta neutral distance from close | -17.0% |
| Prior-year sessions closer to gamma max | 90.9% of 252 |
| Prior-year sessions closer to delta neutral | 35.3% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 45 | +0.4% | -2.0% to +1.5% | 53% | -1.2% to +1.2% | 0.0% |
| above | Day +3 | 45 | -0.1% | -2.8% to +3.6% | 47% | -1.8% to +2.5% | 0.0% |
| above | Day +5 | 45 | +0.3% | -2.0% to +4.3% | 51% | -0.6% to +3.0% | 0.0% |
| above | Day +10 | 44 | -1.8% | -7.7% to +4.7% | 39% | -6.3% to +0.6% | 0.0% |
| below | Day +1 | 42 | +0.4% | -2.2% to +2.6% | 55% | -1.3% to +1.9% | 0.0% |
| below | Day +3 | 42 | +1.0% | -0.6% to +4.0% | 62% | 0.0% to +1.7% | 0.0% |
| below | Day +5 | 41 | +2.1% | -3.4% to +5.4% | 59% | -1.2% to +4.2% | 0.0% |
| below | Day +10 | 41 | +0.9% | -7.0% to +4.8% | 54% | -4.7% to +3.0% | 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/S.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/S.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/S.json?date=2026-10-16&public_schema=4)

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).