State Street SPDR Bloomberg 1-3 Month T-Bill ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, May 26th, 2026
1 Day
0.76%
unchanged at 0.00%
1 Week
0.77%
increased by 0.01%
1 Month
0.80%
increased by 0.04%
Analysis last updated: Friday, May 22, 2026 at 10:12 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.0528 | 6.15 | |
| 0.0182 | 2.61 | |
| 0.9562 | 37.49 | |
| -0.9884 | -5.03 | |
| 1.6653 | 4.35 | |
| -1.0332 | -2.40 | |
| 0.5878 | 1.59 | |
| -0.3571 | -1.83 | |
| 0.0430 | 0.39 | |
| 0.3863 | 3.93 | |
| -0.2867 | -2.07 | |
| -0.2048 | -1.45 |
Estimation Period:
May 30, 2007 to May 22, 2026
May 30, 2007 to May 22, 2026
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