# HAL: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 31.85 |
| Delta neutral (USD/share) | 31.41 |
| Gamma neutral (USD/share) | 27.86 |
| Gamma max (USD/share) | 36.82 |
| Open interest (contracts) | 433,248 |
| Nearest-expiration max pain (USD/share) | 32.00 (2026-10-09) |
| All-expiration max pain (USD/share) | 33.00 |
| Net gamma exposure | 15,837,942 |
| Confirmed GEX flip (USD/share) | 27.86 |
| Call wall (USD/share) | 37.00 |
| Put wall (USD/share) | 35.00 |
| Put/call open-interest ratio | 0.61 |
| Options catalyst-intensity score (0–100) | 55.5 |
| Options directional score (-100 to +100) | -4.9 |
| IV rank | 85.8 |
| Front ATM IV | +37.8% |
| Front-minus-back IV | 1.0 pp |
| Front expected move | +5.2% |
| Front ATM straddle / spot | +3.7% |
| Front 25-delta risk reversal | 1.5 pp |
| Call OI change, 1 session | -4,342 contracts · -1.6% |
| Put OI change, 1 session | -2,778 contracts · -1.7% |
| Call minus put OI growth, 1 session | +0.1 pp |
| Call OI change, 5 sessions | +2,618 contracts · +1.0% |
| Put OI change, 5 sessions | +2,861 contracts · +1.8% |
| Call minus put OI growth, 5 sessions | -0.8 pp |
| Daily call OI change surprise | -0.24σ (252 prior changes) |
| Daily put OI change surprise | -0.14σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.00σ (252 prior changes) |
| Daily open interest change (contracts) | -7,120 |
| Daily open interest change z-score (prior 252) | -0.20σ (252 prior changes) |
| Gamma max distance from close | +15.6% |
| Delta neutral distance from close | -1.4% |
| Prior-year sessions closer to gamma max | 91.7% of 252 |
| Prior-year sessions closer to delta neutral | 7.5% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 24 | -0.8% | -1.8% to +0.3% | 29% | -1.4% to -0.3% | -0.3% |
| above | Day +3 | 24 | -0.0% | -2.3% to +3.2% | 50% | -2.1% to +2.3% | 0.0% |
| above | Day +5 | 24 | -0.0% | -4.3% to +2.8% | 46% | -3.8% to +2.2% | 0.0% |
| above | Day +10 | 24 | -0.3% | -5.8% to +3.8% | 50% | -5.1% to +3.4% | 0.0% |
| below | Day +1 | 25 | +0.5% | -0.6% to +2.1% | 56% | -0.4% to +1.7% | 0.0% |
| below | Day +3 | 25 | +1.6% | -0.4% to +3.6% | 64% | -0.2% to +3.5% | 0.0% |
| below | Day +5 | 25 | -1.2% | -2.6% to +5.8% | 44% | -2.4% to +5.3% | 0.0% |
| below | Day +10 | 25 | +0.6% | -4.9% to +7.8% | 56% | -4.5% to +7.0% | 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/HAL.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/HAL.csv)
- [Complete advanced analysis](https://halfonadouble.com/api/v1/analysis/HAL.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).