iShares 1-3 Year Treasury Bond ETF GJR-GARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Tuesday, May 26th, 2026
1 Day
1.44%
decreased by 0.04%
1 Week
1.44%
decreased by 0.04%
1 Month
1.45%
decreased by 0.03%
Analysis last updated: Friday, May 22, 2026 at 09:55 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0000 | 5.50 | |
| 0.0662 | 21.32 | |
| 0.9394 | 566.92 | |
| -0.0112 | -2.27 |
Estimation Period:
Jul 26, 2002 to May 22, 2026
Jul 26, 2002 to May 22, 2026
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