# DUK: options-positioning snapshot

Canonical: https://halfonadouble.com/stock/DUK
Data through: 2026-11-13 close
Publisher: Half on a Double

| Published field | Value |
| --- | --- |
| Close (USD/share) | 129.16 |
| Delta neutral (USD/share) | 118.91 |
| Gamma neutral (USD/share) | 115.68 |
| Gamma max (USD/share) | 131.65 |
| Open interest (contracts) | 109,133 |
| Nearest-expiration max pain (USD/share) | 125.00 (2026-11-20) |
| All-expiration max pain (USD/share) | 120.00 |
| Net gamma exposure | 27,061,935 |
| Confirmed GEX flip (USD/share) | 115.68 |
| Call wall (USD/share) | 135.00 |
| Put wall (USD/share) | 125.00 |
| Put/call open-interest ratio | 0.53 |
| Net GEX sign history | positive for the last 379 sessions; negative on 0 of the past 252 |
| Max pain expiration record (past 252 sessions) | expiration close nearer the prior-session max pain on 3 of 12 expirations (25%); median distance 1.94% vs 0.86% for an unchanged prior close |
| Options catalyst-intensity score (0–100) | 41.7 |
| Options directional score (-100 to +100) | -19.9 |
| IV rank | 8.0 |
| Front-minus-back IV | 3.9 pp |
| Front 25-delta risk reversal | 226.0 pp |
| Call OI change, 1 session | -4,630 contracts · -6.1% |
| Put OI change, 1 session | +194 contracts · +0.5% |
| Call minus put OI growth, 1 session | -6.6 pp |
| Call OI change, 5 sessions | -2,505 contracts · -3.4% |
| Put OI change, 5 sessions | +1,389 contracts · +3.8% |
| Call minus put OI growth, 5 sessions | -7.2 pp |
| Daily call OI change surprise | -1.14σ (252 prior changes) |
| Daily put OI change surprise | +0.10σ (252 prior changes) |
| Daily call-minus-put growth surprise | -1.89σ (252 prior changes) |
| Daily open interest change (contracts) | -4,436 |
| Daily open interest change z-score (prior 252) | -0.77σ (252 prior changes) |
| Gamma max distance from close | +1.9% |
| Delta neutral distance from close | -7.9% |
| Prior-year sessions closer to gamma max | 12.3% of 252 |
| Prior-year sessions closer to delta neutral | 84.9% of 252 |

## Recent expirations vs max pain

| Expiration | Max pain (session before) | Prior close | Expiration close | Close vs max pain | Nearer |
| --- | ---: | ---: | ---: | ---: | --- |
| 2026-10-16 | 120.00 | 118.88 | 121.47 | +1.24% | Max pain |
| 2026-09-18 | 120.00 | 118.54 | 117.53 | -2.08% | Prior close |
| 2026-08-21 | 125.00 | 122.69 | 119.85 | -4.20% | Prior close |
| 2026-07-17 | 125.00 | 126.11 | 125.01 | +0.01% | Max pain |
| 2026-06-18 | 125.00 | 123.75 | 123.95 | -0.85% | Prior close |
| 2026-05-15 | 130.00 | 124.31 | 120.95 | -7.28% | Prior close |
| 2026-04-17 | 125.00 | 128.63 | 128.03 | +2.36% | Prior close |
| 2026-03-20 | 120.00 | 129.74 | 126.81 | +5.25% | Prior close |
| 2026-02-20 | 125.00 | 126.37 | 126.78 | +1.41% | Prior close |
| 2026-01-16 | 115.00 | 118.90 | 119.22 | +3.55% | Prior close |

Each expiration compares the last session before it, when it was the nearest expiration, with the expiration-session close; distances are percentages of that prior close. Underlying closes are not option settlement values. Descriptive history, not a forecast.

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 32 | -0.1% | -0.5% to +0.7% | 44% | -0.3% to +0.1% | 0.0% |
| above | Day +3 | 32 | +0.1% | -0.7% to +0.9% | 53% | -0.6% to +0.7% | 0.0% |
| above | Day +5 | 32 | -0.1% | -1.7% to +1.1% | 47% | -0.9% to +1.0% | 0.0% |
| above | Day +10 | 32 | +0.3% | -1.8% to +1.5% | 53% | -1.0% to +1.3% | 0.0% |
| below | Day +1 | 32 | +0.1% | -0.7% to +0.6% | 50% | -0.5% to +0.3% | 0.0% |
| below | Day +3 | 32 | +0.0% | -1.0% to +0.9% | 50% | -0.9% to +0.7% | 0.0% |
| below | Day +5 | 32 | +0.1% | -1.7% to +1.2% | 53% | -1.0% to +0.7% | 0.0% |
| below | Day +10 | 32 | -0.1% | -3.2% to +1.1% | 47% | -1.8% to +0.9% | 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/DUK.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/DUK.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/DUK.json?date=2026-11-13&public_schema=5)

An em dash means unavailable, not zero. Values use the same display rounding as the HTML page. This is a current snapshot; the 60-session close-versus-max-pain chart, full history and individual event paths are on the canonical page.

[Definitions and limitations](https://halfonadouble.com/methodology.md).