# KLAC: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 165.74 |
| Delta neutral (USD/share) | 189.35 |
| Gamma neutral (USD/share) | 217.42 |
| Gamma max (USD/share) | 294.74 |
| Open interest (contracts) | 360,824 |
| Nearest-expiration max pain (USD/share) | 182.50 (2026-10-23) |
| All-expiration max pain (USD/share) | 190.00 |
| Net gamma exposure | -6,952,010 |
| Confirmed GEX flip (USD/share) | 217.42 |
| Call wall (USD/share) | 177.50 |
| Put wall (USD/share) | 224.00 |
| Put/call open-interest ratio | 1.32 |
| Options catalyst-intensity score (0–100) | 60.1 |
| Options directional score (-100 to +100) | -15.7 |
| IV rank | 87.9 |
| Front-minus-back IV | 10.1 pp |
| Front 25-delta risk reversal | 1.4 pp |
| Call OI change, 1 session | -13,666 contracts · -8.1% |
| Put OI change, 1 session | -13,008 contracts · -6.0% |
| Call minus put OI growth, 1 session | -2.1 pp |
| Call OI change, 5 sessions | -3,070 contracts · -1.9% |
| Put OI change, 5 sessions | -7,093 contracts · -3.3% |
| Call minus put OI growth, 5 sessions | +1.4 pp |
| Daily call OI change surprise | -0.99σ (252 prior changes) |
| Daily put OI change surprise | -0.68σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.81σ (251 prior changes) |
| Daily open interest change (contracts) | -26,674 |
| Daily open interest change z-score (prior 252) | -0.81σ (252 prior changes) |
| Gamma max distance from close | +77.8% |
| Delta neutral distance from close | +14.2% |
| Prior-year sessions closer to gamma max | 98.0% of 251 |
| Prior-year sessions closer to delta neutral | 98.8% of 251 |

## 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% | -0.9% to +1.3% | 50% | -0.5% to +0.9% | 0.0% |
| above | Day +3 | 18 | -1.2% | -2.1% to +2.2% | 44% | -2.0% to +1.7% | 0.0% |
| above | Day +5 | 18 | -0.3% | -1.9% to +1.3% | 39% | -1.8% to +1.3% | 0.0% |
| above | Day +10 | 18 | +1.5% | -5.2% to +5.2% | 56% | -4.9% to +3.5% | 0.0% |
| below | Day +1 | 16 | +0.6% | -0.2% to +2.2% | 63% | -0.0% to +2.2% | 0.0% |
| below | Day +3 | 16 | +0.3% | -3.7% to +2.5% | 50% | -3.5% to +2.2% | 0.0% |
| below | Day +5 | 16 | -0.4% | -3.8% to +4.0% | 44% | -3.7% to +3.8% | 0.0% |
| below | Day +10 | 16 | -0.3% | -6.0% to +2.5% | 50% | -5.9% to +2.3% | 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/KLAC.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/KLAC.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/KLAC.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).