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Contax Participacoes SA Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Wednesday, February 11th, 2026:58.81% (+8.36%)
Analysis last updated: Thursday, February 12, 2026 at 12:41 AM UTC
Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Contax Participacoes SA S0GARCH
paramt-stat
ω0.83044.79
α0.14197.05
β0.794027.32
γ10.30862.40
γ2-0.4614-2.52
γ30.40953.28
γ4-0.5056-3.83
γ50.27562.06
γ60.04770.30
γ7-0.2050-1.20
γ80.21281.80
Estimation Period:
Aug 29, 2005 to Feb 6, 2026
Impact of return on volatility tomorrow
Volatility Forecasts