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ProShares Ultra VIX Short-Term Futures ETF MF2-GARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

66.78%

increased by 1.73%

1 Week

73.36%

increased by 8.31%

1 Month

85.84%

increased by 20.79%

Analysis last updated: Tuesday, September 8, 2026 at 11:42 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of ProShares Ultra VIX Short-Term Futures ETF MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 8, 2011 to Sep 8, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

MF2-GARCH Model

Tap to view equation

Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
mwindow51
αARCH0.3715
9.90***
βGARCH0.7144
29.86***
γleverage-0.3715
-9.60***
λ₁tau intercept0.2348
0.74
λ₂forecast adj.0.0122
1.41
λ₃tau persistence0.9832
71.12***

0.900

Persistence

7d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

51
α

ARCH

Response to squared shocks

0.3715
9.90***
β

GARCH

Volatility persistence

0.7144
29.86***
γ

leverage

Additional response to negative shocks

-0.3715
-9.60***
λ₁

tau intercept

Baseline long-term coefficient

0.2348
0.74
λ₂

forecast adj.

Forecast performance sensitivity

0.0122
1.41
λ₃

tau persistence

Long-term factor persistence

0.9832
71.12***

Persistence:

0.900

Half-life:

7 days