US Dollar to Hong Kong Dollar 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 Monday, June 15th, 2026
1 Day
0.32%
decreased by 0.02%
1 Week
0.35%
increased by 0.01%
1 Month
0.45%
increased by 0.11%
Analysis last updated: Friday, June 12, 2026 at 08:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0000 | 13.00 | |
| 0.2188 | 16.26 | |
| 0.7888 | 130.48 | |
| -0.0152 | -0.75 |
Estimation Period:
Jan 2, 1990 to Jun 12, 2026
Jan 2, 1990 to Jun 12, 2026
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