Skip to main content
V-Lab

Philippines Stock Exchange PSEi Index APARCH Volatility Analysis

Volatility prediction for Friday, July 10th, 2026

1 Day

18.91%

decreased by 0.20%

1 Week

19.14%

increased by 0.03%

1 Month

19.90%

increased by 0.79%

Analysis last updated: Friday, July 10, 2026 at 08:31 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Philippines Stock Exchange PSEi Index APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jun 11, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 129% more than equivalent positive returns.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0478
23.86***
α

ARCH

Response to squared shocks

0.0941
15.60***
β

GARCH

Volatility persistence

0.8809
173.21***
γ

leverage

Additional response to negative shocks

0.2052
13.37***
δ

power

Transformation power

1.9878
30.27***

Persistence:

0.978

Half-life:

32 days