# AMKR: options-positioning snapshot

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

| Published field | Value |
| --- | --- |
| Close (USD/share) | 41.82 |
| Delta neutral (USD/share) | 46.20 |
| Gamma neutral (USD/share) | 50.67 |
| Gamma max (USD/share) | 66.67 |
| Open interest (contracts) | 116,101 |
| Nearest-expiration max pain (USD/share) | 48.00 (2026-10-23) |
| All-expiration max pain (USD/share) | 50.00 |
| Net gamma exposure | -3,009,860 |
| Confirmed GEX flip (USD/share) | 50.67 |
| Call wall (USD/share) | 60.00 |
| Put wall (USD/share) | 45.00 |
| Put/call open-interest ratio | 0.83 |
| Options catalyst-intensity score (0–100) | 54.4 |
| Options directional score (-100 to +100) | -7.5 |
| IV rank | 100.0 |
| Front-minus-back IV | 2.6 pp |
| Front 25-delta risk reversal | 2.6 pp |
| Call OI change, 1 session | -7,936 contracts · -11.1% |
| Put OI change, 1 session | -4,884 contracts · -8.5% |
| Call minus put OI growth, 1 session | -2.6 pp |
| Call OI change, 5 sessions | -4,587 contracts · -6.7% |
| Put OI change, 5 sessions | +1,934 contracts · +3.8% |
| Call minus put OI growth, 5 sessions | -10.6 pp |
| Daily call OI change surprise | -1.43σ (252 prior changes) |
| Daily put OI change surprise | -0.79σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.03σ (252 prior changes) |
| Daily open interest change (contracts) | -12,820 |
| Daily open interest change z-score (prior 252) | -1.16σ (252 prior changes) |
| Gamma max distance from close | +59.4% |
| Delta neutral distance from close | +10.5% |
| Prior-year sessions closer to gamma max | 96.4% of 252 |
| Prior-year sessions closer to delta neutral | 41.3% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 28 | +0.6% | -0.8% to +2.9% | 61% | -0.0% to +1.9% | 0.0% |
| above | Day +3 | 28 | +1.7% | -2.7% to +5.5% | 61% | -1.4% to +3.7% | 0.0% |
| above | Day +5 | 28 | -0.2% | -5.9% to +9.8% | 46% | -3.1% to +7.7% | 0.0% |
| above | Day +10 | 28 | +1.9% | -8.0% to +12.9% | 57% | -2.1% to +11.8% | 0.0% |
| below | Day +1 | 24 | -0.8% | -3.6% to +2.2% | 42% | -3.3% to +1.5% | 0.0% |
| below | Day +3 | 24 | -2.2% | -5.3% to +0.8% | 29% | -5.2% to -0.3% | -0.3% |
| below | Day +5 | 24 | -1.7% | -5.8% to +5.7% | 33% | -5.7% to +0.8% | 0.0% |
| below | Day +10 | 24 | -3.1% | -9.6% to +6.9% | 42% | -8.9% to +5.3% | 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/AMKR.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/AMKR.csv)
- [Public aggregate analysis](https://halfonadouble.com/api/v1/analysis/AMKR.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).