PLRX Move Probability $0.89 -0.02 (-2.4%)
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)
65.7%
Stock touched +5.0% ($0.93) at least once during 14 trading days.
Median first touch: Day 3 of 14
Expiration Close Probability
25.8%
Stock closed at or beyond +5.0% at the end of the 14-day window.
The Touch Multiple
2.55x
You are 2.5x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±27.1%
$0.65 — $1.13
Historical 14-Day Return Distribution
Frequency of rolling 14-day percentage returns over 508 historical windows (2024-09-23 to 2026-10-21). 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) | 65.7% | 25.8% | Model-free reality across 508 historical 14-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 71.2% | Adjusts normal bell curve for real-world skewness (-8.24) and kurtosis (101.61). |
| Standard Normal (Black-Scholes / GBM) | 85.7% | 42.8% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 60.9% | 24.6% | Filters for historical windows that started with volatility similar to current 20-day HV (317 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 114.8%
- Recent 20-Day HV: 54.0%
- Parkinson Intraday Volatility: 71.2%
- Vol Trend: Compressed (-53% vs baseline)
14-Day Return Quantiles
- Median Return: -2.7%
- Top 10% Move (90th percentile): +14.7%
- Bottom 10% Move (10th percentile): -19.0%
- Max Historical Gain (14d): +39.7%
- Max Historical Loss (14d): -76.1%