Skip to main content
V-Lab

Pacer S&P 500 Quality FCF R&D Leaders ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

19.61%

unchanged at 0.00%

1 Week

19.61%

unchanged at 0.00%

1 Month

19.61%

unchanged at 0.00%

Analysis last updated: Wednesday, August 26, 2026 at 02:15 AM UTC

Date Range:

from

to

6M ·

All

graph of Pacer S&P 500 Quality FCF R&D Leaders ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 14, 2026 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days. Returns follow a Student-t distribution with v = 61.19 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

1.5255
0.55
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.8114
0.09
ν

DF

Student-t tail thickness

61.1936
0.01

Persistence:

0.811

Half-life:

3 days