# ARDX: options-positioning snapshot

Canonical: https://halfonadouble.com/stock/ARDX
Data through: 2026-10-02 close
Publisher: Half on a Double

| Published field | Value |
| --- | --- |
| Close (USD/share) | 3.34 |
| Delta neutral (USD/share) | 5.10 |
| Gamma neutral (USD/share) | 8.31 |
| Gamma max (USD/share) | 0.90 |
| Open interest (contracts) | 187,877 |
| Nearest-expiration max pain (USD/share) | 4.00 (2026-10-16) |
| All-expiration max pain (USD/share) | 4.00 |
| Net gamma exposure | -13,800,136 |
| Confirmed GEX flip (USD/share) | 8.31 |
| Call wall (USD/share) | 5.00 |
| Put wall (USD/share) | 4.00 |
| Put/call open-interest ratio | 3.02 |
| Options catalyst-intensity score (0–100) | 40.0 |
| Options directional score (-100 to +100) | -4.1 |
| IV rank | 28.1 |
| Front ATM IV | – |
| Front-minus-back IV | – pp |
| Front expected move | – |
| Front ATM straddle / spot | – |
| Front 25-delta risk reversal | -105.5 pp |
| Call OI change, 1 session | +21 contracts · +0.0% |
| Put OI change, 1 session | +57 contracts · +0.0% |
| Call minus put OI growth, 1 session | +0.0 pp |
| Call OI change, 5 sessions | +1,623 contracts · +3.6% |
| Put OI change, 5 sessions | +316 contracts · +0.2% |
| Call minus put OI growth, 5 sessions | +3.4 pp |
| Daily call OI change surprise | +0.01σ (252 prior changes) |
| Daily put OI change surprise | -0.16σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.11σ (252 prior changes) |
| Daily open interest change (contracts) | 78 |
| Daily open interest change z-score (prior 252) | -0.07σ (252 prior changes) |
| Gamma max distance from close | -73.1% |
| Delta neutral distance from close | +52.7% |
| Prior-year sessions closer to gamma max | 89.3% of 252 |
| Prior-year sessions closer to delta neutral | 99.2% of 252 |

## Historical gamma-max cross outcomes

| Direction | Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: |
| above | Day +1 | 60 | -0.2% | -2.4% to +3.0% | 43% | -1.4% to +1.0% | 0.0% |
| above | Day +3 | 60 | -0.6% | -4.9% to +6.3% | 47% | -1.8% to +1.2% | 0.0% |
| above | Day +5 | 60 | -0.1% | -7.7% to +7.9% | 50% | -2.7% to +2.3% | 0.0% |
| above | Day +10 | 60 | +0.8% | -6.7% to +11.3% | 52% | -3.3% to +3.7% | 0.0% |
| below | Day +1 | 62 | -0.1% | -2.4% to +2.2% | 45% | -0.9% to +1.0% | 0.0% |
| below | Day +3 | 62 | +0.4% | -4.2% to +4.6% | 50% | -1.2% to +2.2% | 0.0% |
| below | Day +5 | 62 | +0.8% | -5.8% to +5.4% | 55% | -0.7% to +2.5% | 0.0% |
| below | Day +10 | 62 | +2.3% | -9.0% to +11.5% | 56% | -1.8% to +4.3% | 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/ARDX.json)
- [Historical CSV](https://halfonadouble.com/api/v1/history/ARDX.csv)
- [Complete advanced analysis](https://halfonadouble.com/api/v1/analysis/ARDX.json?date=2026-10-02)

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).