SPMB
State Street SPDR Portfolio Mortgage Backed Bond ETF
1W: +1.1%
1M: +2.4%
3M: -1.6%
YTD: -2.9%
1Y: -3.4%
3Y: +16.8%
5Y: -2.3%
$21.60
+0.02 (+0.09%)
Weekly Expected Move ±0.8%
$21
$21
$22
$22
$22
Overview
Chart
Holdings
Changes
Technicals
Analysis
Peers
Institutions
Dark Pool
Short Interest
Dividends
Weather
Oct Typical
⛅
Partly Cloudy
+1.9% YTD avg
Midterm Year
☁️
Cloudy
-0.7% YTD avg
2026 Now
🌧️
Rainy
Below typical
20yr Avg YTD
+1.9%
Day 206 of 252
Midterm Year YTD
-0.7%
Presidential cycle avg
2026 YTD
-2.9%
Below 20yr avg
Typical Vol
5%
Annualized
Monthly Weather Forecast
Jan
20yr
⛅
+0.6%
Midterm
☁️
+0.2%
71% win
5% vol
Feb
20yr
☁️
+0.4%
Midterm
☁️
+0.2%
50% win
5% vol
Mar
20yr
☁️
+0.8%
Midterm
☁️
-0.6%
67% win
15% vol
Apr
20yr
☁️
+0.7%
Midterm
🌧️
-1.3%
78% win
5% vol
May
20yr
☁️
+1.0%
Midterm
☁️
-0.1%
67% win
6% vol
Jun
20yr
☁️
+1.2%
Midterm
☁️
+0.1%
50% win
6% vol
Jul
20yr
⛅
+1.8%
Midterm
☁️
+0.6%
78% win
5% vol
Aug
20yr
☁️
+2.1%
Midterm
☁️
+0.4%
67% win
5% vol
Sep
20yr
☁️
+2.0%
Midterm
🌧️
-1.0%
50% win
7% vol
Oct
20yr
☁️
+1.8%
Midterm
☁️
-0.8%
44% win
5% vol
Now:
+2.5%
Nov
20yr
⛅
+2.3%
Midterm
☁️
+0.4%
65% win
7% vol
Dec
20yr
☁️
+0.0%
Midterm
☁️
-0.4%
53% win
5% vol
Seasonality (20yr)
Updated: 2026-10-27
YTD: -2.9%