# ZETA: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 31.80 |
| Delta neutral (USD/share) | 25.82 |
| Gamma neutral (USD/share) | 25.67 |
| Gamma max (USD/share) | 35.41 |
| Open interest (contracts) | 251,111 |
| Nearest-expiration max pain (USD/share) | 32.50 (2026-10-23) |
| All-expiration max pain (USD/share) | 22.50 |
| Net gamma exposure | 8,706,195 |
| Confirmed GEX flip (USD/share) | 25.67 |
| Call wall (USD/share) | 35.00 |
| Put wall (USD/share) | 30.00 |
| Put/call open-interest ratio | 0.48 |
| Options catalyst-intensity score (0–100) | 37.8 |
| Options directional score (-100 to +100) | 1.3 |
| IV rank | 72.0 |
| Front-minus-back IV | -7.2 pp |
| Front 25-delta risk reversal | 4.5 pp |
| Call OI change, 1 session | -22,810 contracts · -11.8% |
| Put OI change, 1 session | -7,826 contracts · -8.8% |
| Call minus put OI growth, 1 session | -3.1 pp |
| Call OI change, 5 sessions | +2,530 contracts · +1.5% |
| Put OI change, 5 sessions | -2,725 contracts · -3.2% |
| Call minus put OI growth, 5 sessions | +4.8 pp |
| Daily call OI change surprise | -1.60σ (252 prior changes) |
| Daily put OI change surprise | -1.22σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.52σ (252 prior changes) |
| Daily open interest change (contracts) | -30,636 |
| Daily open interest change z-score (prior 252) | -1.55σ (252 prior changes) |
| Gamma max distance from close | +11.3% |
| Delta neutral distance from close | -18.8% |
| Prior-year sessions closer to gamma max | 64.3% of 252 |
| Prior-year sessions closer to delta neutral | 45.2% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 42 | -0.4% | -2.2% to +1.3% | 48% | -2.0% to +0.8% | 0.0% |
| above | Day +3 | 42 | +0.7% | -3.8% to +4.4% | 52% | -1.8% to +2.8% | 0.0% |
| above | Day +5 | 42 | +1.9% | -4.6% to +7.7% | 57% | -1.9% to +3.3% | 0.0% |
| above | Day +10 | 40 | -2.0% | -9.7% to +9.0% | 43% | -4.4% to +2.5% | 0.0% |
| below | Day +1 | 41 | +0.5% | -2.7% to +2.8% | 56% | -1.3% to +1.8% | 0.0% |
| below | Day +3 | 41 | +1.0% | -2.6% to +6.0% | 56% | -1.0% to +3.9% | 0.0% |
| below | Day +5 | 41 | +3.5% | -3.8% to +8.4% | 63% | -1.7% to +5.6% | 0.0% |
| below | Day +10 | 39 | +4.0% | -6.6% to +12.0% | 54% | -4.2% to +9.1% | 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/ZETA.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/ZETA.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/ZETA.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).