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V-Lab

Ecuador Guayaquil Stock Exchange BVG Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, August 28th, 2026

1 Day

10.91%

decreased by 0.63%

1 Week

11.33%

decreased by 0.21%

1 Month

12.04%

increased by 0.50%

Analysis last updated: Wednesday, September 2, 2026 at 04:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ecuador Guayaquil Stock Exchange BVG S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1994 to Aug 27, 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 5 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.6955
4.73***
α

ARCH

Response to squared shocks

0.1311
5.53***
β

GARCH

Volatility persistence

0.7308
16.53***
γi Spline Coefficients
K=9
γ10.0358
0.52
γ20.0115
0.11
γ3-0.1158
-1.39
γ40.1123
1.46
γ5-0.1253
-1.65*
γ60.1987
2.50**
γ7-0.1602
-2.34**
γ80.0543
0.86
γ9-0.0250
-0.48

Persistence:

0.862

Half-life:

5 days