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V-Lab

S&P GSCI Biofuel Spot Index EGARCH Volatility Analysis

Volatility prediction for Monday, July 13th, 2026

1 Day

15.79%

decreased by 0.30%

1 Week

15.90%

decreased by 0.19%

1 Month

16.32%

increased by 0.23%

Analysis last updated: Friday, July 10, 2026 at 11:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Biofuel Spot Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 16, 1995 to Jul 10, 2026

Model Insight

Volatility shocks decay with a half-life of 45 trading days, meaning a shock loses half its impact after approximately 45 days.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0070
18.39***
α

ARCH

Response to squared shocks

0.1269
43.59***
β

GARCH

Volatility persistence

0.9846
1,236.94***
γ

leverage

Additional response to negative shocks

0.0031
1.23

Persistence:

0.985

Half-life:

45 days