# BRK.B: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 532.14 |
| Delta neutral (USD/share) | 482.76 |
| Gamma neutral (USD/share) | 475.98 |
| Gamma max (USD/share) | 524.94 |
| Open interest (contracts) | 493,979 |
| Nearest-expiration max pain (USD/share) | 515.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 470.00 |
| Net gamma exposure | 72,542,235 |
| Confirmed GEX flip (USD/share) | 475.98 |
| Call wall (USD/share) | 525.00 |
| Put wall (USD/share) | 500.00 |
| Put/call open-interest ratio | 0.56 |
| Options catalyst-intensity score (0–100) | 44.5 |
| Options directional score (-100 to +100) | 23.2 |
| IV rank | 54.0 |
| Front-minus-back IV | -0.5 pp |
| Front 25-delta risk reversal | -38.6 pp |
| Call OI change, 1 session | -30,365 contracts · -8.7% |
| Put OI change, 1 session | -28,370 contracts · -13.9% |
| Call minus put OI growth, 1 session | +5.1 pp |
| Call OI change, 5 sessions | -2,167 contracts · -0.7% |
| Put OI change, 5 sessions | -12,141 contracts · -6.4% |
| Call minus put OI growth, 5 sessions | +5.8 pp |
| Daily call OI change surprise | -1.99σ (252 prior changes) |
| Daily put OI change surprise | -2.77σ (252 prior changes) |
| Daily call-minus-put growth surprise | +2.70σ (252 prior changes) |
| Daily open interest change (contracts) | -58,735 |
| Daily open interest change z-score (prior 252) | -2.34σ (252 prior changes) |
| Gamma max distance from close | -1.4% |
| Delta neutral distance from close | -9.3% |
| Prior-year sessions closer to gamma max | 18.3% of 252 |
| Prior-year sessions closer to delta neutral | 99.2% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 34 | -0.0% | -0.3% to +0.4% | 47% | -0.3% to +0.3% | 0.0% |
| above | Day +3 | 33 | +0.0% | -1.4% to +1.1% | 55% | -0.3% to +0.8% | 0.0% |
| above | Day +5 | 33 | +0.1% | -1.7% to +1.9% | 52% | -1.2% to +0.9% | 0.0% |
| above | Day +10 | 33 | -0.4% | -2.9% to +1.8% | 48% | -1.4% to +1.1% | 0.0% |
| below | Day +1 | 33 | +0.1% | -0.9% to +0.4% | 52% | -0.7% to +0.3% | 0.0% |
| below | Day +3 | 33 | -0.0% | -0.9% to +1.4% | 48% | -0.4% to +0.8% | 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=2026-10-16&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).