V-Lab
Valora Renda Imobiliaria Fundo De Investimento Imobiliario APARCH Volatility Analysis
Volatility prediction for Thursday, October 1st, 2026
1 Day
19.42%
decreased by 0.21%
1 Week
22.65%
increased by 3.02%
1 Month
23.96%
increased by 4.33%
Analysis last updated: Thursday, October 1, 2026 at 10:27 PM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 18, 2024 to Sep 25, 2026Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day. The volatility power δ = 1.46 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
Shock decay: Shocks decay with a 1-day half-lifeδ = 1.46 · sub-quadratic power
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0000 | 2.19** |
| αARCH | 0.2495 | 3.09*** |
| βGARCH | 0.2513 | 1.41 |
| γleverage | 0.1289 | 0.67 |
| δpower | 1.4606 | 1.95* |
0.465
Persistence1d
Half-lifeσ
APARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0000 | 2.19** |
α ARCH Response to squared shocks | 0.2495 | 3.09*** |
β GARCH Volatility persistence | 0.2513 | 1.41 |
γ leverage Additional response to negative shocks | 0.1289 | 0.67 |
δ power Transformation power | 1.4606 | 1.95* |
Persistence:
0.465
Half-life:
1 days
Other Valora Renda Imobiliaria Fundo De Investimento Imobiliario Analyses
Other APARCH Analyses on Real Estate