State Street SPDR Bloomberg 1-3 Month T-Bill ETF MEM Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Tuesday, May 26th, 2026
1 Day
1.05%
decreased by 0.18%
1 Week
1.05%
decreased by 0.18%
1 Month
1.05%
decreased by 0.18%
Analysis last updated: Friday, May 22, 2026 at 10:09 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0000 | 0.50 | |
| 0.4068 | 8.19 | |
| 0.5932 | 64.85 |
Estimation Period:
May 30, 2007 to May 22, 2026
May 30, 2007 to May 22, 2026
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