Skip to main content
V-Lab

John Hancock FD ALL C C ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

13.50%

decreased by 0.49%

1 Week

13.74%

decreased by 0.25%

1 Month

14.44%

increased by 0.45%

Analysis last updated: Monday, August 24, 2026 at 09:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of John Hancock FD ALL C C ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 2, 2023 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 15 trading days, meaning a shock loses half its impact after approximately 15 days. Returns follow a Student-t distribution with v = 5.69 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0246
4.64***
α

ARCH

Response to squared shocks

0.0603
5.85***
β

GARCH

Volatility persistence

0.9545
168.53***
ν

DF

Student-t tail thickness

5.6935
1.26

Persistence:

0.955

Half-life:

15 days