KOSPI 200 Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 10th, 2026
1 Day
66.19%
decreased by 2.03%
1 Week
69.33%
increased by 1.11%
1 Month
75.98%
increased by 7.76%
Analysis last updated: Friday, July 10, 2026 at 08:38 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 2003 to Apr 30, 2026Model Insight
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.5466 | 15.24*** |
α ARCH Response to squared shocks | 0.2067 | 15.37*** |
β GARCH Volatility persistence | 0.8035 | 102.07*** |
γ leverage Additional response to negative shocks | -0.2067 | -13.35*** |
Persistence:
0.907
Half-life:
7 days
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