BITX Move Probability $19.47 +0.37 (+1.9%)
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)
50.5%
Stock touched +5.0% ($20.44) at least once during 3 trading days.
Median first touch: Day 1 of 3
Expiration Close Probability
25.6%
Stock closed at or beyond +5.0% at the end of the 3-day window.
The Touch Multiple
1.97x
You are 2.0x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±10.0%
$17.53 — $21.41
Historical 3-Day Return Distribution
Frequency of rolling 3-day percentage returns over 519 historical windows (2024-09-13 to 2026-10-13). 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) | 50.5% | 25.6% | Model-free reality across 519 historical 3-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 27.9% | Adjusts normal bell curve for real-world skewness (-0.13) and kurtosis (2.01). |
| Standard Normal (Black-Scholes / GBM) | 62.4% | 31.2% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 45.1% | 22.5% | Filters for historical windows that started with volatility similar to current 20-day HV (324 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 91.3%
- Recent 20-Day HV: 69.6%
- Parkinson Intraday Volatility: 57.9%
- Vol Trend: Compressed (-24% vs baseline)
3-Day Return Quantiles
- Median Return: +0.1%
- Top 10% Move (90th percentile): +12.5%
- Bottom 10% Move (10th percentile): -10.7%
- Max Historical Gain (3d): +40.7%
- Max Historical Loss (3d): -35.3%