# IBKR: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 82.69 |
| Delta neutral (USD/share) | 82.81 |
| Gamma neutral (USD/share) | 85.61 |
| Gamma max (USD/share) | 96.22 |
| Open interest (contracts) | 124,345 |
| Nearest-expiration max pain (USD/share) | 86.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 70.00 |
| Net gamma exposure | -2,231,862 |
| Confirmed GEX flip (USD/share) | 85.61 |
| Call wall (USD/share) | 90.00 |
| Put wall (USD/share) | 82.00 |
| Put/call open-interest ratio | 0.76 |
| Options catalyst-intensity score (0–100) | 70.9 |
| Options directional score (-100 to +100) | -10.4 |
| IV rank | 100.0 |
| Front-minus-back IV | 10.6 pp |
| Front 25-delta risk reversal | 3.2 pp |
| Call OI change, 1 session | -5,380 contracts · -7.1% |
| Put OI change, 1 session | -11,122 contracts · -17.2% |
| Call minus put OI growth, 1 session | +10.1 pp |
| Call OI change, 5 sessions | -2,041 contracts · -2.8% |
| Put OI change, 5 sessions | -2,498 contracts · -4.5% |
| Call minus put OI growth, 5 sessions | +1.7 pp |
| Daily call OI change surprise | -1.06σ (252 prior changes) |
| Daily put OI change surprise | -2.23σ (252 prior changes) |
| Daily call-minus-put growth surprise | +3.22σ (252 prior changes) |
| Daily open interest change (contracts) | -16,502 |
| Daily open interest change z-score (prior 252) | -1.69σ (252 prior changes) |
| Gamma max distance from close | +16.4% |
| Delta neutral distance from close | +0.1% |
| Prior-year sessions closer to gamma max | 94.0% of 252 |
| Prior-year sessions closer to delta neutral | 0.4% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 31 | -0.0% | -0.8% to +0.4% | 45% | -0.6% to +0.1% | 0.0% |
| above | Day +3 | 31 | +0.2% | -1.8% to +2.4% | 52% | -1.1% to +1.1% | 0.0% |
| above | Day +5 | 31 | +1.2% | -1.5% to +3.2% | 55% | -0.7% to +2.1% | 0.0% |
| above | Day +10 | 31 | +1.8% | -2.8% to +6.0% | 58% | -1.5% to +3.3% | 0.0% |
| below | Day +1 | 30 | +0.4% | -0.4% to +1.3% | 57% | -0.3% to +0.8% | 0.0% |
| below | Day +3 | 30 | +0.3% | -0.7% to +3.9% | 60% | -0.2% to +2.4% | 0.0% |
| below | Day +5 | 30 | +1.3% | -2.0% to +5.0% | 60% | -0.7% to +3.3% | 0.0% |
| below | Day +10 | 30 | +1.4% | -0.4% to +7.3% | 63% | -0.1% to +5.4% | 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/IBKR.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/IBKR.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/IBKR.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).