# EFA: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 103.96 |
| Delta neutral (USD/share) | 107.17 |
| Gamma neutral (USD/share) | 103.96 |
| Gamma max (USD/share) | 112.66 |
| Open interest (contracts) | 1,308,457 |
| Nearest-expiration max pain (USD/share) | 105.00 (2026-10-09) |
| All-expiration max pain (USD/share) | 105.00 |
| Net gamma exposure | -252,249,047 |
| Call wall (USD/share) | 110.00 |
| Put wall (USD/share) | 103.00 |
| Put/call open-interest ratio | 3.09 |
| Options catalyst-intensity score (0–100) | 48.1 |
| Options directional score (-100 to +100) | -33.4 |
| IV rank | 17.0 |
| Front ATM IV | +17.5% |
| Front-minus-back IV | 0.8 pp |
| Front expected move | +2.4% |
| Front ATM straddle / spot | +1.6% |
| Front 25-delta risk reversal | 1.9 pp |
| Call OI change, 1 session | -3,408 contracts · -1.1% |
| Put OI change, 1 session | +27,061 contracts · +2.8% |
| Call minus put OI growth, 1 session | -3.9 pp |
| Call OI change, 5 sessions | +8,989 contracts · +2.9% |
| Put OI change, 5 sessions | +73,145 contracts · +8.0% |
| Call minus put OI growth, 5 sessions | -5.1 pp |
| Daily call OI change surprise | -0.06σ (252 prior changes) |
| Daily put OI change surprise | +0.45σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.89σ (252 prior changes) |
| Daily open interest change (contracts) | 23,653 |
| Daily open interest change z-score (prior 252) | +0.25σ (252 prior changes) |
| Gamma max distance from close | +8.4% |
| Delta neutral distance from close | +3.1% |
| Prior-year sessions closer to gamma max | 88.9% of 252 |
| Prior-year sessions closer to delta neutral | 84.9% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 11 | -0.4% | -1.0% to +0.1% | 36% | -1.0% to +0.2% | 0.0% |
| above | Day +3 | 11 | -0.0% | -0.6% to +0.1% | 36% | -0.7% to +0.1% | 0.0% |
| above | Day +5 | 11 | -0.4% | -0.6% to +0.4% | 36% | -0.6% to +0.7% | 0.0% |
| above | Day +10 | 11 | +0.5% | +0.2% to +1.7% | 91% | +0.2% to +2.0% | +0.2% |
| below | Day +1 | 11 | +0.4% | +0.2% to +0.7% | 91% | +0.1% to +0.8% | +0.1% |
| below | Day +3 | 11 | +0.2% | -1.1% to +0.6% | 64% | -1.2% to +0.7% | 0.0% |
| below | Day +5 | 11 | +0.7% | +0.1% to +1.1% | 73% | -0.0% to +1.2% | 0.0% |
| below | Day +10 | 11 | +1.2% | +0.3% to +1.9% | 82% | +0.2% to +2.2% | +0.2% |

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