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V-Lab

Lens Technology Co.,Ltd. APARCH Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

77.75%

decreased by 5.19%

1 Week

76.65%

decreased by 6.29%

1 Month

73.09%

decreased by 9.85%

Analysis last updated: Tuesday, July 21, 2026 at 06:24 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Lens Technology Co.,Ltd. APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 18, 2015 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 21 trading days, meaning a shock loses half its impact after approximately 21 days. The volatility power δ = 1.18 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1527
5.06***
α

ARCH

Response to squared shocks

0.0784
17.16***
β

GARCH

Volatility persistence

0.9044
159.19***
γ

leverage

Additional response to negative shocks

-0.0374
-1.03
δ

power

Transformation power

1.1814
8.06***

Persistence:

0.968

Half-life:

21 days