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State Street SPDR Bloomberg 1-10 Year TIPS ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

2.78%

increased by 0.18%

1 Week

2.80%

increased by 0.20%

1 Month

2.84%

increased by 0.24%

Analysis last updated: Friday, August 21, 2026 at 10:52 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street SPDR Bloomberg 1-10 Year TIPS ETF S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 30, 2013 to Aug 21, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 6 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.5924
2.64***
α

ARCH

Response to squared shocks

0.0717
2.68***
β

GARCH

Volatility persistence

0.8209
15.11***
γi Spline Coefficients
K=9
γ10.1985
0.47
γ2-0.2060
-0.39
γ3-0.3275
-0.95
γ40.8547
2.09**
γ5-0.7758
-1.99**
γ60.7961
2.20**
γ7-1.3899
-4.26***
γ81.2034
4.33***
γ9-0.3154
-1.63

Persistence:

0.893

Half-life:

6 days