Biogen Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, June 15th, 2026
1 Day
39.87%
decreased by 1.15%
1 Week
41.02%
increased by 0.00%
1 Month
44.96%
increased by 3.94%
Analysis last updated: Friday, June 12, 2026 at 10:54 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.2799 | 11.48 | |
| 0.0530 | 15.35 | |
| 0.9031 | 240.37 | |
| 0.0586 | 8.32 |
Estimation Period:
Sep 18, 1991 to Jun 12, 2026
Sep 18, 1991 to Jun 12, 2026
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