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V-Lab

Union Bank of the Philippines Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

21.10%

decreased by 2.02%

1 Week

23.01%

decreased by 0.11%

1 Month

27.38%

increased by 4.26%

Analysis last updated: Friday, August 21, 2026 at 08:15 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Union Bank of the Philippines S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 30, 1992 to Aug 20, 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 10 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.8837
4.21***
α

ARCH

Response to squared shocks

0.2401
9.22***
β

GARCH

Volatility persistence

0.6923
27.65***
γi Spline Coefficients
K=10
γ10.0507
0.64
γ2-0.0023
-0.02
γ3-0.1983
-2.39**
γ40.3171
3.79***
γ5-0.3412
-4.56***
γ60.3017
4.04***
γ7-0.2319
-2.42**
γ80.3153
2.99***
γ9-0.3697
-4.35***
γ100.1866
3.41***

Persistence:

0.932

Half-life:

10 days