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V-Lab

Ultragenyx Pharmaceutical Inc GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

52.92%

decreased by 0.90%

1 Week

54.34%

increased by 0.52%

1 Month

56.69%

increased by 2.87%

Analysis last updated: Friday, August 21, 2026 at 10:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ultragenyx Pharmaceutical Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 31, 2014 to Aug 21, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 118% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.9746
12.15***
α

ARCH

Response to squared shocks

0.0473
6.13***
β

GARCH

Volatility persistence

0.7786
54.59***
γ

leverage

Additional response to negative shocks

0.0557
4.79***

Persistence:

0.854

Half-life:

4 days