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V-Lab

Borsa Istanbul 100 Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

22.47%

increased by 0.07%

1 Week

23.27%

increased by 0.87%

1 Month

24.93%

increased by 2.53%

Analysis last updated: Friday, July 24, 2026 at 04:06 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Borsa Istanbul 100 Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 24, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 161% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0569
13.40***
β

GARCH

Volatility persistence

0.7925
137.56***
γ

leverage

Additional response to negative shocks

0.0916
15.05***
λ₁

tau intercept

Baseline long-term coefficient

0.0009
0.85
λ₂

forecast adj.

Forecast performance sensitivity

0.0055
3.31***
λ₃

tau persistence

Long-term factor persistence

0.9943
500.88***

Persistence:

0.895

Half-life:

6 days