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V-Lab

ATIF Holdings Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, August 18th, 2026

1 Day

86.13%

decreased by 3.96%

1 Week

96.87%

increased by 6.78%

1 Month

106.16%

increased by 16.07%

Analysis last updated: Monday, August 17, 2026 at 09:17 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of ATIF Holdings Ltd S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 3, 2019 to Aug 14, 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 2 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.4559
3.37***
α

ARCH

Response to squared shocks

0.2217
5.40***
β

GARCH

Volatility persistence

0.4989
6.50***
γi Spline Coefficients
K=5
γ1-0.4661
-0.83
γ20.0692
0.09
γ31.0384
2.19**
γ4-1.1554
-2.85***
γ50.6696
2.43**

Persistence:

0.721

Half-life:

2 days