# BRK.B: options-positioning snapshot

Canonical: https://halfonadouble.com/stock/BRK.B
Data through: 2026-10-23 close
Publisher: Half on a Double

| Published field | Value |
| --- | --- |
| Close (USD/share) | 542.19 |
| Delta neutral (USD/share) | 488.67 |
| Gamma neutral (USD/share) | 477.21 |
| Gamma max (USD/share) | 523.35 |
| Open interest (contracts) | 523,153 |
| Nearest-expiration max pain (USD/share) | 515.00 (2026-10-30) |
| All-expiration max pain (USD/share) | 480.00 |
| Net gamma exposure | 52,281,115 |
| Confirmed GEX flip (USD/share) | 477.21 |
| Call wall (USD/share) | 550.00 |
| Put wall (USD/share) | 542.50 |
| Put/call open-interest ratio | 0.60 |
| Options catalyst-intensity score (0–100) | 51.9 |
| Options directional score (-100 to +100) | 5.6 |
| IV rank | 74.3 |
| Front-minus-back IV | 0.9 pp |
| Front 25-delta risk reversal | 0.8 pp |
| Call OI change, 1 session | -8,137 contracts · -2.4% |
| Put OI change, 1 session | -7,006 contracts · -3.5% |
| Call minus put OI growth, 1 session | +1.0 pp |
| Call OI change, 5 sessions | +10,183 contracts · +3.2% |
| Put OI change, 5 sessions | +18,991 contracts · +10.8% |
| Call minus put OI growth, 5 sessions | -7.6 pp |
| Daily call OI change surprise | -0.53σ (252 prior changes) |
| Daily put OI change surprise | -0.69σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.59σ (252 prior changes) |
| Daily open interest change (contracts) | -15,143 |
| Daily open interest change z-score (prior 252) | -0.61σ (252 prior changes) |
| Gamma max distance from close | -3.5% |
| Delta neutral distance from close | -9.9% |
| Prior-year sessions closer to gamma max | 68.3% of 252 |
| Prior-year sessions closer to delta neutral | 99.6% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 35 | -0.0% | -0.3% to +0.4% | 46% | -0.2% to +0.2% | 0.0% |
| above | Day +3 | 35 | +0.1% | -1.0% to +1.1% | 57% | -0.3% to +0.8% | 0.0% |
| above | Day +5 | 34 | +0.2% | -1.6% to +1.9% | 53% | -1.2% to +1.4% | 0.0% |
| above | Day +10 | 33 | -0.4% | -2.9% to +1.8% | 48% | -1.4% to +1.1% | 0.0% |
| below | Day +1 | 34 | +0.1% | -0.9% to +0.6% | 53% | -0.7% to +0.3% | 0.0% |
| below | Day +3 | 34 | +0.0% | -0.8% to +1.6% | 50% | -0.4% to +1.2% | 0.0% |
| below | Day +5 | 33 | +0.7% | -1.8% to +1.8% | 58% | -1.0% to +1.3% | 0.0% |
| below | Day +10 | 33 | +0.4% | -1.6% to +2.5% | 55% | -1.5% to +2.0% | 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/BRK.B.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/BRK.B.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/BRK.B.json?date=2026-10-23&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).