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V-Lab

US Dollar to South African Rand EGARCH Volatility Analysis

Volatility prediction for Tuesday, August 18th, 2026

1 Day

8.26%

decreased by 0.41%

1 Week

8.44%

decreased by 0.23%

1 Month

9.20%

increased by 0.53%

Analysis last updated: Monday, August 17, 2026 at 07:10 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of US Dollar to South African Rand EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 14, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 62% 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

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0083
12.20***
α

ARCH

Response to squared shocks

0.1524
28.12***
β

GARCH

Volatility persistence

0.9893
924.59***
γ

leverage

Additional response to negative shocks

0.0359
13.32***

Persistence:

0.989

Half-life:

65 days