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V-Lab

NextBoat Inc AGARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

74.43%

decreased by 1.14%

1 Week

84.63%

increased by 9.06%

1 Month

88.76%

increased by 13.19%

Analysis last updated: Saturday, August 15, 2026 at 02:36 AM UTC

Date Range:

from

to

6M ·

All

graph of NextBoat Inc AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 13, 2025 to Aug 14, 2026
Boundary Parameters

Model Insight

The news-impact curve is shifted (γ = -3.14) so that positive returns raise next-day volatility more than negative returns of the same size. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and rare among risky assets.

σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

15.0000
13.03***
α

ARCH

Response to squared shocks

0.2073
6.99***
β

GARCH

Volatility persistence

0.2632
8.60***
γ

leverage

Additional response to negative shocks

-3.1390
-6.73***

Persistence:

0.470

Half-life:

1 days