# VKTX: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 25.17 |
| Delta neutral (USD/share) | 20.48 |
| Gamma neutral (USD/share) | 2.73 |
| Gamma max (USD/share) | 31.09 |
| Open interest (contracts) | 257,117 |
| Nearest-expiration max pain (USD/share) | 28.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 30.00 |
| Net gamma exposure | 6,592,627 |
| Confirmed GEX flip (USD/share) | 2.73 |
| Call wall (USD/share) | 30.00 |
| Put wall (USD/share) | 27.50 |
| Put/call open-interest ratio | 0.20 |
| Options catalyst-intensity score (0–100) | 51.0 |
| Options directional score (-100 to +100) | 13.4 |
| IV rank | 100.0 |
| Front-minus-back IV | -1.7 pp |
| Front 25-delta risk reversal | 4.4 pp |
| Call OI change, 1 session | -70,245 contracts · -24.7% |
| Put OI change, 1 session | -21,283 contracts · -33.2% |
| Call minus put OI growth, 1 session | +8.5 pp |
| Call OI change, 5 sessions | -49,052 contracts · -18.6% |
| Put OI change, 5 sessions | -17,155 contracts · -28.6% |
| Call minus put OI growth, 5 sessions | +10.0 pp |
| Daily call OI change surprise | -6.12σ (252 prior changes) |
| Daily put OI change surprise | -5.47σ (252 prior changes) |
| Daily call-minus-put growth surprise | +1.97σ (252 prior changes) |
| Daily open interest change (contracts) | -91,528 |
| Daily open interest change z-score (prior 252) | -6.09σ (252 prior changes) |
| Gamma max distance from close | +23.5% |
| Delta neutral distance from close | -18.6% |
| Prior-year sessions closer to gamma max | 95.6% of 252 |
| Prior-year sessions closer to delta neutral | 7.9% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 46 | -0.2% | -2.3% to +2.0% | 41% | -1.4% to +0.4% | 0.0% |
| above | Day +3 | 46 | +1.6% | -3.8% to +7.2% | 57% | -2.6% to +4.3% | 0.0% |
| above | Day +5 | 46 | +1.0% | -6.9% to +10.2% | 57% | -1.0% to +2.9% | 0.0% |
| above | Day +10 | 46 | +2.1% | -9.8% to +17.3% | 59% | -2.8% to +8.6% | 0.0% |
| below | Day +1 | 50 | +0.9% | -1.6% to +2.7% | 60% | -0.4% to +2.1% | 0.0% |
| below | Day +3 | 50 | +2.2% | -3.0% to +7.4% | 58% | -0.8% to +4.9% | 0.0% |
| below | Day +5 | 50 | +0.8% | -5.2% to +8.6% | 52% | -1.9% to +4.2% | 0.0% |
| below | Day +10 | 50 | +2.4% | -6.6% to +13.3% | 56% | -2.4% to +5.7% | 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/VKTX.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/VKTX.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/VKTX.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).