SG Move Probability $9.82 -0.40 (-3.9%)
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)
58.7%
Stock touched +5.0% ($10.31) at least once during 5 trading days.
Median first touch: Day 2 of 5
Expiration Close Probability
25.3%
Stock closed at or beyond +5.0% at the end of the 5-day window.
The Touch Multiple
2.32x
You are 2.3x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±10.5%
$8.79 — $10.85
Historical 5-Day Return Distribution
Frequency of rolling 5-day percentage returns over 518 historical windows (2024-09-24 to 2026-10-23). 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) | 58.7% | 25.3% | Model-free reality across 518 historical 5-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 30.1% | Adjusts normal bell curve for real-world skewness (-0.42) and kurtosis (2.23). |
| Standard Normal (Black-Scholes / GBM) | 64.1% | 32.1% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 62.9% | 35.4% | Filters for historical windows that started with volatility similar to current 20-day HV (178 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 74.4%
- Recent 20-Day HV: 49.7%
- Parkinson Intraday Volatility: 63.3%
- Vol Trend: Compressed (-33% vs baseline)
5-Day Return Quantiles
- Median Return: -1.0%
- Top 10% Move (90th percentile): +11.9%
- Bottom 10% Move (10th percentile): -13.0%
- Max Historical Gain (5d): +37.0%
- Max Historical Loss (5d): -27.7%