DIA Move Probability $515.27 -5.99 (-1.1%)
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)
10.8%
Stock touched +5.0% ($541.03) at least once during 14 trading days.
Median first touch: Day 9 of 14
Expiration Close Probability
6.3%
Stock closed at or beyond +5.0% at the end of the 14-day window.
The Touch Multiple
1.72x
You are 1.7x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±3.5%
$497.33 — $533.21
Historical 14-Day Return Distribution
Frequency of rolling 14-day percentage returns over 507 historical windows (2024-08-19 to 2026-09-16). 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) | 10.8% | 6.3% | Model-free reality across 507 historical 14-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 2.5% | Adjusts normal bell curve for real-world skewness (0.41) and kurtosis (10.47). |
| Standard Normal (Black-Scholes / GBM) | 16.1% | 8.1% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 9.2% | 4.3% | Filters for historical windows that started with volatility similar to current 20-day HV (393 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 14.8%
- Recent 20-Day HV: 11.6%
- Parkinson Intraday Volatility: 11.5%
- Vol Trend: Compressed (-22% vs baseline)
14-Day Return Quantiles
- Median Return: +1.2%
- Top 10% Move (90th percentile): +4.2%
- Bottom 10% Move (10th percentile): -3.2%
- Max Historical Gain (14d): +9.5%
- Max Historical Loss (14d): -10.3%