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Boeing Co/The APARCH Volatility Analysis

Volatility prediction for Friday, October 9th, 2026

1 Day

35.11%

decreased by 1.23%

1 Week

35.16%

decreased by 1.18%

1 Month

35.34%

decreased by 1.00%

Analysis last updated: Thursday, October 8, 2026 at 09:50 PM UTC

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Date Range:

from

10/08/2024

to

10/08/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Boeing Co/The APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 2, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 199% more than equivalent positive returns. The volatility power δ = 1.45 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 199% more than positive returnsδ = 1.45 · sub-quadratic power
ParamValuet-stat
ωconst0.0412
3.30***
αARCH0.0612
7.02***
βGARCH0.9337
126.66***
γleverage0.3598
4.81***
δpower1.4520
6.98***

0.988

Persistence

58d

Half-life
σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0412
3.30***
α

ARCH

Response to squared shocks

0.0612
7.02***
β

GARCH

Volatility persistence

0.9337
126.66***
γ

leverage

Additional response to negative shocks

0.3598
4.81***
δ

power

Transformation power

1.4520
6.98***

Persistence:

0.988

Half-life:

58 days