# PBR.A: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 23.30 |
| Delta neutral (USD/share) | 12.26 |
| Gamma neutral (USD/share) | 7.47 |
| Gamma max (USD/share) | 18.56 |
| Open interest (contracts) | 216,080 |
| Nearest-expiration max pain (USD/share) | 20.00 (2026-11-20) |
| All-expiration max pain (USD/share) | 15.00 |
| Net gamma exposure | 7,676,577 |
| Confirmed GEX flip (USD/share) | 7.47 |
| Call wall (USD/share) | 22.50 |
| Put wall (USD/share) | 15.00 |
| Put/call open-interest ratio | 0.13 |
| Options catalyst-intensity score (0–100) | 41.9 |
| Options directional score (-100 to +100) | 45.8 |
| IV rank | 80.0 |
| Front-minus-back IV | 0.0 pp |
| Front 25-delta risk reversal | -60.5 pp |
| Call OI change, 1 session | -2,497 contracts · -1.3% |
| Put OI change, 1 session | -1,264 contracts · -4.8% |
| Call minus put OI growth, 1 session | +3.5 pp |
| Call OI change, 5 sessions | +39 contracts · +0.0% |
| Put OI change, 5 sessions | -1,183 contracts · -4.5% |
| Call minus put OI growth, 5 sessions | +4.6 pp |
| Daily call OI change surprise | — (83 prior changes) |
| Daily put OI change surprise | — (83 prior changes) |
| Daily call-minus-put growth surprise | — (83 prior changes) |
| Daily open interest change (contracts) | -3,761 |
| Daily open interest change z-score (prior 252) | -0.30σ (252 prior changes) |
| Gamma max distance from close | -20.3% |
| Delta neutral distance from close | -47.4% |
| Prior-year sessions closer to gamma max | 99.5% of 219 |
| Prior-year sessions closer to delta neutral | 98.6% of 219 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 18 | -0.2% | -2.1% to +1.4% | 44% | -1.8% to +1.1% | 0.0% |
| above | Day +3 | 18 | -0.0% | -3.0% to +2.2% | 50% | -3.0% to +2.1% | 0.0% |
| above | Day +5 | 18 | -1.4% | -3.9% to +2.9% | 44% | -3.0% to +2.6% | 0.0% |
| above | Day +10 | 18 | -0.8% | -5.1% to +3.7% | 44% | -3.3% to +2.7% | 0.0% |
| below | Day +1 | 20 | +0.6% | -1.3% to +2.4% | 60% | -1.2% to +2.2% | 0.0% |
| below | Day +3 | 20 | +0.5% | -1.9% to +2.2% | 55% | -1.8% to +1.6% | 0.0% |
| below | Day +5 | 20 | -0.8% | -2.7% to +1.1% | 40% | -2.6% to +0.7% | 0.0% |
| below | Day +10 | 20 | +0.9% | -5.5% to +6.3% | 60% | -4.9% to +5.5% | 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/PBR.A.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/PBR.A.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/PBR.A.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).