Skip to main content
V-Lab

Helix Resources Limited MF2-GARCH Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

119.91%

decreased by 4.64%

1 Week

130.88%

increased by 6.33%

1 Month

135.23%

increased by 10.68%

Analysis last updated: Tuesday, August 25, 2026 at 05:52 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Helix Resources Limited MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 21, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 72% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

56
α

ARCH

Response to squared shocks

0.2411
23.60***
β

GARCH

Volatility persistence

0.4887
18.65***
γ

leverage

Additional response to negative shocks

-0.1006
-6.79***
λ₁

tau intercept

Baseline long-term coefficient

3.4949
0.98
λ₂

forecast adj.

Forecast performance sensitivity

0.2295
1.23
λ₃

tau persistence

Long-term factor persistence

0.7188
2.97***

Persistence:

0.680

Half-life:

2 days