# IEF: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 89.05 |
| Delta neutral (USD/share) | 90.01 |
| Gamma neutral (USD/share) | 89.05 |
| Gamma max (USD/share) | 92.21 |
| Open interest (contracts) | 1,754,237 |
| Nearest-expiration max pain (USD/share) | 88.50 (2026-10-09) |
| All-expiration max pain (USD/share) | 91.00 |
| Net gamma exposure | -1,346,864 |
| Confirmed GEX flip (USD/share) | 89.05 |
| Call wall (USD/share) | 91.00 |
| Put wall (USD/share) | 90.00 |
| Put/call open-interest ratio | 0.59 |
| Options catalyst-intensity score (0–100) | 40.7 |
| Options directional score (-100 to +100) | 0.6 |
| IV rank | 61.1 |
| Front ATM IV | +10.0% |
| Front-minus-back IV | 0.2 pp |
| Front expected move | +1.4% |
| Front ATM straddle / spot | +0.8% |
| Front 25-delta risk reversal | 0.4 pp |
| Call OI change, 1 session | +9,041 contracts · +0.8% |
| Put OI change, 1 session | -49,536 contracts · -7.1% |
| Call minus put OI growth, 1 session | +7.9 pp |
| Call OI change, 5 sessions | +215,205 contracts · +24.3% |
| Put OI change, 5 sessions | +31,983 contracts · +5.2% |
| Call minus put OI growth, 5 sessions | +19.1 pp |
| Daily call OI change surprise | +0.18σ (252 prior changes) |
| Daily put OI change surprise | -1.15σ (252 prior changes) |
| Daily call-minus-put growth surprise | +1.09σ (252 prior changes) |
| Daily open interest change (contracts) | -40,495 |
| Daily open interest change z-score (prior 252) | -0.69σ (252 prior changes) |
| Gamma max distance from close | +3.6% |
| Delta neutral distance from close | +1.1% |
| Prior-year sessions closer to gamma max | 81.7% of 252 |
| Prior-year sessions closer to delta neutral | 74.2% 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 | +0.1% | -0.3% to +0.4% | 55% | -0.4% to +0.4% | 0.0% |
| above | Day +3 | 11 | -0.3% | -0.8% to +0.6% | 45% | -1.0% to +0.7% | 0.0% |
| above | Day +5 | 11 | -0.1% | -1.2% to +0.7% | 45% | -1.4% to +0.9% | 0.0% |
| above | Day +10 | 11 | +0.4% | -1.4% to +1.1% | 64% | -1.7% to +1.1% | 0.0% |
| below | Day +1 | 11 | -0.1% | -0.3% to +0.1% | 36% | -0.4% to +0.2% | 0.0% |
| below | Day +3 | 11 | -0.4% | -0.5% to -0.0% | 27% | -0.5% to +0.1% | 0.0% |
| below | Day +5 | 11 | -0.4% | -1.0% to +0.5% | 45% | -1.1% to +0.6% | 0.0% |
| below | Day +10 | 11 | +0.2% | -1.1% to +0.7% | 55% | -1.2% to +0.7% | 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/IEF.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/IEF.csv)
- [Complete advanced analysis](https://halfonadouble.com/api/v1/analysis/IEF.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).