ALAB Move Probability $229.32 -29.40 (-11.4%)
Real historical back-data analysis: evaluates rolling trading-day windows to determine the probability of a stock touching or closing at your target move.
Touch Probability (First Passage)
83.5%
Stock touched +5.0% ($240.79) at least once during 14 trading days.
Median first touch: Day 2 of 14
Expiration Close Probability
46.9%
Stock closed at or beyond +5.0% at the end of the 14-day window.
The Touch Multiple
1.78x
You are 1.8x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±22.7%
$177.37 — $281.27
Historical 14-Day Return Distribution
Frequency of rolling 14-day percentage returns over 508 historical windows (2024-10-03 to 2026-11-02). The colored bar indicates the win zone for +5.0%.
Historical returns
Target move zone (+5.0%+)
Target threshold bin
Probability Breakdown: Empirical vs. Theoretical Models
Comparing actual market back-data against Black-Scholes and Fat-Tail adjustments.
| Model / Methodology | Touch Probability | Expiration Close Probability | What It Tells You |
|---|---|---|---|
| Empirical Back-Data (Actual History) | 83.5% | 46.9% | Model-free reality across 508 historical 14-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 37.7% | Adjusts normal bell curve for real-world skewness (-0.04) and kurtosis (3.99). |
| Standard Normal (Black-Scholes / GBM) | 82.9% | 41.5% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 88.0% | 51.1% | Filters for historical windows that started with volatility similar to current 20-day HV (409 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 96.1%
- Recent 20-Day HV: 98.2%
- Parkinson Intraday Volatility: 71.7%
- Vol Trend: Normal / Consistent
14-Day Return Quantiles
- Median Return: +2.8%
- Top 10% Move (90th percentile): +39.5%
- Bottom 10% Move (10th percentile): -21.8%
- Max Historical Gain (14d): +82.5%
- Max Historical Loss (14d): -41.0%