# AA: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 41.46 |
| Delta neutral (USD/share) | 44.04 |
| Gamma neutral (USD/share) | 41.86 |
| Gamma max (USD/share) | 48.75 |
| Open interest (contracts) | 235,860 |
| Nearest-expiration max pain (USD/share) | 41.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 45.00 |
| Net gamma exposure | -540,781 |
| Confirmed GEX flip (USD/share) | 41.86 |
| Call wall (USD/share) | 45.00 |
| Put wall (USD/share) | 40.00 |
| Put/call open-interest ratio | 1.14 |
| Options catalyst-intensity score (0–100) | 68.0 |
| Options directional score (-100 to +100) | -14.3 |
| IV rank | 100.0 |
| Front-minus-back IV | 6.5 pp |
| Front 25-delta risk reversal | 3.4 pp |
| Call OI change, 1 session | -46,749 contracts · -29.8% |
| Put OI change, 1 session | -15,934 contracts · -11.2% |
| Call minus put OI growth, 1 session | -18.6 pp |
| Call OI change, 5 sessions | -25,959 contracts · -19.1% |
| Put OI change, 5 sessions | -9,932 contracts · -7.3% |
| Call minus put OI growth, 5 sessions | -11.8 pp |
| Daily call OI change surprise | -3.90σ (252 prior changes) |
| Daily put OI change surprise | -1.76σ (252 prior changes) |
| Daily call-minus-put growth surprise | -4.16σ (252 prior changes) |
| Daily open interest change (contracts) | -62,683 |
| Daily open interest change z-score (prior 252) | -3.12σ (252 prior changes) |
| Gamma max distance from close | +17.6% |
| Delta neutral distance from close | +6.2% |
| Prior-year sessions closer to gamma max | 81.3% of 252 |
| Prior-year sessions closer to delta neutral | 36.9% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 48 | -0.0% | -1.8% to +2.3% | 48% | -0.6% to +1.1% | 0.0% |
| above | Day +3 | 48 | +0.5% | -2.2% to +4.7% | 52% | -1.3% to +3.1% | 0.0% |
| above | Day +5 | 48 | +1.2% | -3.9% to +5.6% | 56% | -2.2% to +2.0% | 0.0% |
| above | Day +10 | 48 | +1.1% | -5.7% to +6.7% | 52% | -3.8% to +4.0% | 0.0% |
| below | Day +1 | 49 | +0.5% | -1.9% to +2.6% | 51% | -0.8% to +1.4% | 0.0% |
| below | Day +3 | 49 | +0.5% | -3.4% to +4.0% | 59% | -1.2% to +2.4% | 0.0% |
| below | Day +5 | 49 | +0.8% | -1.9% to +7.3% | 61% | -0.2% to +2.9% | 0.0% |
| below | Day +10 | 49 | +3.7% | -8.2% to +8.5% | 57% | -2.4% to +5.1% | 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/AA.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/AA.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/AA.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).