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US Dollar to South African Rand GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, July 13th, 2026

1 Day

30.11%

increased by 3.80%

1 Week

38.14%

increased by 11.83%

1 Month

41.69%

increased by 15.38%

Analysis last updated: Sunday, July 12, 2026 at 03:18 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of US Dollar to South African Rand GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 10, 2026

Model Insight

The estimated Student-t degrees of freedom v = 2.05 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

7.2677
0.03
α

ARCH

Response to squared shocks

0.2451
0.03
β

GARCH

Volatility persistence

0.5300
0.02
ν

DF

Student-t tail thickness

2.0492
0.73

Persistence:

0.530

Half-life:

1 days