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V-Lab

Xi'An Peri Power Semiconductor Converting Technology Co Ltd Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, July 14th, 2026

1 Day

117.68%

increased by 5.62%

1 Week

121.44%

increased by 9.38%

1 Month

127.08%

increased by 15.02%

Analysis last updated: Tuesday, July 14, 2026 at 06:22 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Xi'An Peri Power Semiconductor Converting Technology Co Ltd SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 7, 2020 to Jul 10, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 4 trading days.

τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2316
4.74***
α

ARCH

Response to squared shocks

0.0808
2.50**
β

GARCH

Volatility persistence

0.7529
7.44***
γi Spline Coefficients
K=5
γ10.0428
0.07
γ2-0.7469
-0.95
γ32.0439
4.46***
γ4-2.7126
-4.87***
γ53.9093
4.79***

Persistence:

0.834

Half-life:

4 days