V-Lab
US Dollar to Chinese Renminbi GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, August 19th, 2026
1 Day
23.95%
decreased by 0.85%
1 Week
24.02%
decreased by 0.78%
1 Month
24.29%
decreased by 0.51%
Analysis last updated: Tuesday, August 18, 2026 at 07:43 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 14, 2005 to Aug 14, 2026Model Insight
The estimated Student-t degrees of freedom v = 2.00 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 7.3419 | 13.29*** |
α ARCH Response to squared shocks | 0.0413 | 132.68*** |
β GARCH Volatility persistence | 0.9987 | 9,695.88*** |
ν DF Student-t tail thickness | 2.0006 |
Persistence:
0.999
Half-life:
523 days
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