# ON: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 84.89 |
| Delta neutral (USD/share) | 72.37 |
| Gamma neutral (USD/share) | 66.18 |
| Gamma max (USD/share) | 80.44 |
| Open interest (contracts) | 289,051 |
| Nearest-expiration max pain (USD/share) | 74.00 (2026-10-09) |
| All-expiration max pain (USD/share) | 75.00 |
| Net gamma exposure | 13,725,508 |
| Confirmed GEX flip (USD/share) | 66.18 |
| Call wall (USD/share) | 80.00 |
| Put wall (USD/share) | 75.00 |
| Put/call open-interest ratio | 0.63 |
| Options catalyst-intensity score (0–100) | 55.0 |
| Options directional score (-100 to +100) | -6.7 |
| IV rank | 91.9 |
| Front ATM IV | +56.3% |
| Front-minus-back IV | -5.2 pp |
| Front expected move | +7.8% |
| Front ATM straddle / spot | +6.4% |
| Front 25-delta risk reversal | 1.4 pp |
| Call OI change, 1 session | -3,808 contracts · -2.1% |
| Put OI change, 1 session | -3,080 contracts · -2.7% |
| Call minus put OI growth, 1 session | +0.6 pp |
| Call OI change, 5 sessions | +11,770 contracts · +7.1% |
| Put OI change, 5 sessions | +2,213 contracts · +2.0% |
| Call minus put OI growth, 5 sessions | +5.1 pp |
| Daily call OI change surprise | -0.42σ (252 prior changes) |
| Daily put OI change surprise | -0.27σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.04σ (252 prior changes) |
| Daily open interest change (contracts) | -6,888 |
| Daily open interest change z-score (prior 252) | -0.36σ (252 prior changes) |
| Gamma max distance from close | -5.2% |
| Delta neutral distance from close | -14.7% |
| Prior-year sessions closer to gamma max | 29.4% of 252 |
| Prior-year sessions closer to delta neutral | 86.1% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 32 | +0.4% | -1.3% to +2.1% | 59% | -0.9% to +1.5% | 0.0% |
| above | Day +3 | 31 | +0.1% | -3.9% to +3.0% | 55% | -2.0% to +2.6% | 0.0% |
| above | Day +5 | 31 | -0.9% | -4.7% to +5.4% | 48% | -3.8% to +3.2% | 0.0% |
| above | Day +10 | 30 | +2.4% | -2.7% to +7.4% | 57% | -1.0% to +3.6% | 0.0% |
| below | Day +1 | 32 | +0.3% | -1.5% to +2.2% | 53% | -0.8% to +1.4% | 0.0% |
| below | Day +3 | 32 | -0.8% | -3.2% to +3.1% | 44% | -2.6% to +2.2% | 0.0% |
| below | Day +5 | 31 | +0.8% | -2.1% to +3.2% | 55% | -1.9% to +1.6% | 0.0% |
| below | Day +10 | 31 | +2.4% | -4.3% to +6.0% | 68% | +1.2% to +4.9% | +1.2% |

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/ON.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/ON.csv)
- [Complete advanced analysis](https://halfonadouble.com/api/v1/analysis/ON.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).