IBRX Move Probability $8.63 -0.15 (-1.7%)
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)
30.5%
Stock touched +5.0% ($9.07) at least once during 1 trading days.
Median first touch: Day 1 of 1
Expiration Close Probability
15.9%
Stock closed at or beyond +5.0% at the end of the 1-day window.
The Touch Multiple
1.92x
You are 1.9x more likely to hit your target during the window than holding until expiration.
1σ Expected Move (68.3%)
±11.8%
$7.61 — $9.66
Historical 1-Day Return Distribution
Frequency of rolling 1-day percentage returns over 521 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) | 30.5% | 15.9% | Model-free reality across 521 historical 1-day windows. |
| Fat-Tail Adjusted (Cornish-Fisher) | — | 0.0% | Adjusts normal bell curve for real-world skewness (12.95) and kurtosis (228.84). |
| Standard Normal (Black-Scholes / GBM) | 68.0% | 34.0% | Classic theoretical log-normal model with constant volatility (often underestimates tail risks). |
| Regime-Conditioned (Similar Volatility) | 28.0% | 14.5% | Filters for historical windows that started with volatility similar to current 20-day HV (296 matching periods). |
Underlying Volatility Profile
Volatility Metrics
- 1-Year Annualized HV: 188.1%
- Recent 20-Day HV: 77.1%
- Parkinson Intraday Volatility: 82.3%
- Vol Trend: Compressed (-59% vs baseline)
1-Day Return Quantiles
- Median Return: +0.0%
- Top 10% Move (90th percentile): +7.1%
- Bottom 10% Move (10th percentile): -5.8%
- Max Historical Gain (1d): +808.1%
- Max Historical Loss (1d): -21.1%