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State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB)

Government Mortgage-Backed Bond | Exchange Traded Fund | NYSEArca
21.99 USD -0.07 (-0.317%) ⇩ (Aug. 28, 2026, 4 p.m. EDT)
After hours: 22.00 +0.01 (0.045%) ⇧ (Aug. 28, 2026, 7:38 p.m. EDT)
Short-term:★★☆☆☆Long-term:★⯪☆☆☆Dividends:★★★☆☆
Hot Take ↕ | Aug. 22, 2026, 5:54 a.m. EDT

This mortgage-backed bond ETF is currently trapped in a structural decline, having lost nearly 18% of its value over the last nine years. While the trailing twelve-month performance was slightly negative, the deeper issue is the persistent downward trajectory where six out of the last nine years saw price erosion. This multi-year decline suggests the market views the underlying assets as deteriorating in value, likely due to rising rates or credit concerns, rendering the current price a reflection of poor business quality rather than a bargain. The 4.15% dividend yield is attractive but acts as a compensation for holding a falling asset rather than a sign of a healthy, growing enterprise. With the price hovering near its 52-week lows and no signs of a recovery in the annual trajectory, the outlook remains bearish.
Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoTheta ✓0.007808
MSTL0.008025
AutoETS0.008216
AutoARIMA0.008216

Forecast horizon: 45 days | Selected: AutoTheta

Forecast Reliability
Score 77%
H-stat 7.93
Ljung-Box p 0.000
Jarque-Bera p 0.579
Excess Kurtosis -0.76

As of Aug. 22, 2026, 5:54 a.m. EDT: Options activity is virtually dormant with negligible open interest and volume across all expirations. The sole notable position is an at-the-money anchor strike, indicating no speculative positioning or directional bias from options traders.

Dividend Data

Yield Summary
Last Yield 1yr Yield 3yr Avg 5yr Avg
0.33% 4.09% 3.81% 3.42%
Dividend History
Date Dividend Yield %
2026-08-03 0.072 0.328767
2026-07-01 0.071 0.320108
2026-06-01 0.070 0.314748
2026-05-01 0.070 0.314183
2026-04-01 0.070 0.313480
2026-03-02 0.069 0.304367
2026-02-02 0.072 0.321142
2025-12-18 0.143 0.637539
2025-12-01 0.069 0.307213
2025-11-03 0.069 0.307213
2025-10-01 0.069 0.307624
2025-09-02 0.070 0.316742
2025-08-01 0.069 0.312642
2025-07-01 0.068 0.308950
2025-06-02 0.067 0.309326
2025-05-01 0.068 0.310078
2025-04-01 0.068 0.307832
2025-03-03 0.067 0.303167
2025-02-03 0.067 0.310473
2024-12-19 0.102 0.475968
2024-12-02 0.066 0.300000
2024-11-01 0.066 0.304428
2024-10-01 0.065 0.288248
2024-09-03 0.066 0.294643
2024-08-01 0.065 0.294118
2024-07-01 0.064 0.299766
2024-06-03 0.064 0.298507
2024-05-01 0.062 0.294537
2024-04-01 0.063 0.293023
2024-03-01 0.065 0.301205
2024-02-01 0.062 0.281307
2023-12-18 0.061 0.279304
2023-12-01 0.061 0.284382
2023-11-01 0.061 0.297561
2023-10-02 0.060 0.292113
2023-09-01 0.060 0.280636
2023-08-01 0.059 0.273528
2023-07-03 0.059 0.271015
2023-06-01 0.057 0.259327
2023-05-01 0.059 0.268915
2023-04-03 0.058 0.261144
2023-03-01 0.058 0.269142
2023-02-01 0.055 0.243148
2022-12-19 0.056 0.253279
2022-12-01 0.055 0.249546
2022-11-01 0.054 0.255682
2022-10-03 0.053 0.245598
2022-09-01 0.053 0.235451
2022-08-01 0.052 0.220807
2022-07-01 0.052 0.226185
2022-06-01 0.055 0.237889
2022-05-02 0.056 0.244969
2022-04-01 0.053 0.222783
2022-03-01 0.054 0.218094
2022-02-01 0.052 0.209087
2021-12-17 0.053 0.208826
2021-12-01 0.053 0.208170
2021-11-01 0.053 0.207518
2021-10-01 0.054 0.209953
2021-09-01 0.053 0.205347
2021-08-02 0.053 0.204396
2021-07-01 0.054 0.209383
2021-06-01 0.055 0.212684
2021-05-03 0.056 0.215550
2021-04-01 0.058 0.224025
2021-03-01 0.059 0.225449
2021-02-01 0.058 0.219780
2020-12-18 0.063 0.238275
2020-12-01 0.062 0.234937
2020-11-02 0.063 0.237826
2020-10-01 0.063 0.237288
2020-09-01 0.063 0.236486
2020-08-03 0.066 0.246821
2020-07-01 0.066 0.247006
2020-06-01 0.064 0.238717
2020-05-01 0.068 0.253826
2020-04-01 0.067 0.251690
2020-03-02 0.065 0.245654
2020-02-03 0.069 0.262857
2019-12-20 0.070 0.268097
2019-12-02 0.069 0.263661
2019-11-01 0.063 0.240091
2019-10-01 0.066 0.252294
2019-09-03 0.071 0.270476
2019-08-01 0.071 0.271614
2019-07-01 0.073 0.280338
2019-06-03 0.072 0.276710
2019-05-01 0.074 0.288050
2019-04-01 0.073 0.284600
2019-03-01 0.074 0.290880
2019-02-01 0.071 0.278759
2018-12-19 0.072 0.284024
2018-12-03 0.073 0.290721
2018-11-01 0.072 0.288693
2018-10-01 0.074 0.294821
2018-09-04 0.072 0.284810
2018-08-01 0.074 0.293534
2018-07-02 0.073 0.288310
2018-06-01 0.071 0.280411
2018-05-01 0.068 0.268881
2018-04-02 0.067 0.262231
2018-03-01 0.068 0.266771
2018-02-01 0.070 0.273117
2017-12-19 0.068 0.261841
2017-12-01 0.066 0.252680
2017-11-01 0.069 0.263560
2017-10-02 0.069 0.263058
2017-09-01 0.068 0.257967
2017-08-01 0.070 0.266261
2017-07-03 0.071 0.272031
2017-06-01 0.068 0.257869
2017-05-01 0.068 0.258850
2017-04-03 0.068 0.258261
2017-03-01 0.068 0.259344
2017-02-01 0.063 0.240275
2016-12-28 0.067 0.256902
2016-12-01 0.063 0.239453
2016-11-01 0.054 0.200000
2016-10-03 0.066 0.243632
2016-09-01 0.069 0.254989
2016-08-01 0.067 0.246868
2016-07-01 0.066 0.243094
2016-06-01 0.067 0.247964
2016-05-03 0.069 0.254613
2016-05-02 0.069 0.255556
2016-04-01 0.069 0.254707
2016-03-01 0.067 0.247415
2016-02-01 0.064 0.236686
2015-12-29 0.070 0.262271
2015-12-01 0.070 0.260223
2015-11-02 0.070 0.260320
2015-10-01 0.071 0.261993
2015-09-01 0.073 0.270070
2015-08-03 0.069 0.255556
2015-07-01 0.068 0.253542
2015-06-01 0.067 0.247050
2015-05-01 0.066 0.241847
2015-04-01 0.058 0.211370
2015-03-02 0.061 0.223853
2015-02-02 0.075 0.273923
2014-12-29 0.336 1.236203
2014-12-01 0.064 0.232221
2014-11-03 0.066 0.241228
2014-10-01 0.064 0.233918
2014-09-02 0.060 0.220751
2014-08-01 0.058 0.213549
2014-07-01 0.060 0.219780
2014-06-02 0.060 0.220022
2014-05-01 0.064 0.236511
2014-04-01 0.053 0.198057
2014-03-03 0.051 0.187776
2014-02-03 0.027 0.099521
2013-12-27 0.075 0.282592
2013-12-02 0.042 0.157244
2013-11-01 0.031 0.115242
2013-10-01 0.011 0.041060
2013-09-03 0.008 0.030292
2013-08-01 0.019 0.071644
2013-07-01 0.014 0.052751
2013-06-03 0.021 0.078183
2013-05-01 0.019 0.069699
2013-04-01 0.007 0.025707
2013-03-01 0.006 0.022035
2013-02-01 0.006 0.022108
2012-12-27 0.449 1.644689
2012-12-03 0.005 0.018090
2012-10-01 0.007 0.025072
2012-09-04 0.011 0.039597
2012-08-01 0.016 0.057348
2012-07-02 0.018 0.064888
2012-06-01 0.024 0.086580
2012-05-01 0.023 0.083183
2012-04-02 0.029 0.105187
2012-03-01 0.035 0.127505
2012-02-01 0.029 0.105647
2011-12-28 0.547 2.000732
2011-12-01 0.038 0.136838
2011-11-01 0.036 0.129218
2011-10-03 0.040 0.143781
2011-09-01 0.052 0.186581
2011-08-01 0.056 0.204156
2011-07-01 0.045 0.165441
2011-06-01 0.051 0.186335
2011-05-02 0.057 0.209867
2011-04-01 0.055 0.204994
2011-03-01 0.047 0.175701
2011-02-01 0.040 0.149645
2010-12-29 0.584 2.192192
2010-12-01 0.020 0.073046
2010-11-01 0.024 0.086705
2010-10-01 0.029 0.105801
2010-09-01 0.048 0.174545
2010-08-02 0.061 0.221899
2010-07-01 0.049 0.179159
2010-06-01 0.056 0.206110
2010-05-03 0.066 0.247098
2010-04-01 0.070 0.262664
2010-03-01 0.058 0.217963
2010-02-01 0.040 0.150773
2009-12-29 0.358 1.348399
2009-12-01 0.076 0.280443
2009-11-02 0.072 0.268356
2009-10-01 0.063 0.235338
2009-09-01 0.049 0.185255
2009-08-03 0.056 0.212121
2009-07-01 0.073 0.277461
2009-06-01 0.055 0.209604
2009-05-01 0.055 0.211538
2009-04-01 0.050 0.189466
2009-03-02 0.022 0.084291
Additional Data
trailingAnnualDividendRate 0.0
trailingAnnualDividendYield 0.0
dividendYield 4.15

Info Dump

Attribute Value
All Time High 35.2
All Time Low 20.0
Ask 21.99
Ask Size 11,100
Average Daily Volume10 Day 1,147,690
Average Daily Volume3 Month 1,156,400
Average Volume 1,156,400
Average Volume10Days 1,147,690
Beta3 Year 1.15
Bid 21.98
Bid Size 4,400
Category Government Mortgage-Backed Bond
Crypto Tradeable 0
Currency USD
Custom Price Alert Confidence HIGH
Day High 22.1062
Day Low 21.97
Dividend Yield 4.15
Esg Populated 0
Exchange PCX
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 22.0912
Fifty Day Average Change -0.101200104
Fifty Day Average Change Percent -0.004581014
Fifty Two Week Change Percent -0.4977405
Fifty Two Week High 22.87
Fifty Two Week High Change -0.88000107
Fifty Two Week High Change Percent -0.0384784
Fifty Two Week Low 21.88
Fifty Two Week Low Change 0.11000061
Fifty Two Week Low Change Percent 0.0050274506
Fifty Two Week Range 21.88 - 22.87
First Trade Date Milliseconds 1,233,325,800,000
Five Year Average Return 0.0023948
Full Exchange Name NYSEArca
Fullday Change -0.0699997
Fullday Change Percent -0.317315
Fullday Price 22.0
Fund Family State Street Investment Management
Fund Inception Date 1,231,977,600
Gmt Off Set Milliseconds -14,400,000
Has Pre Post Market Data 1
Language en-US
Legal Type Exchange Traded Fund
Long Business Summary The fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the index and in securities that the Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the index. The index is designed to measure the performance of the U.S. agency mortgage pass-through segment of the U.S. investment grade bond market.
Long Name State Street SPDR Portfolio Mortgage Backed Bond ETF
Market us_market
Market State CLOSED
Max Age 86,400
Message Board Id finmb_52508821
Nav Price 22.07409
Net Assets 6,959,862,800.0
Net Expense Ratio 0.04
Open 22.08
Post Market Change 0.010000229
Post Market Change Percent 0.045476258
Post Market Price 22.0
Post Market Time 1,787,960,307
Previous Close 22.06
Price Hint 2
Quote Source Name Delayed Quote
Quote Type ETF
Region US
Regular Market Change -0.0699997
Regular Market Change Percent -0.317315
Regular Market Day High 22.1062
Regular Market Day Low 21.97
Regular Market Day Range 21.97 - 22.1062
Regular Market Open 22.08
Regular Market Previous Close 22.06
Regular Market Price 21.99
Regular Market Time 1,787,947,200
Regular Market Volume 981,702
Short Name State Street SPDR Portfolio Mor
Source Interval 15
Symbol SPMB
Three Year Average Return 0.050901398
Total Assets 6,959,862,784
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Peg Ratio None
Trailing Three Month Nav Returns -0.932
Trailing Three Month Returns -0.932
Triggerable 1
Two Hundred Day Average 22.3433
Two Hundred Day Average Change -0.3533001
Two Hundred Day Average Change Percent -0.01581235
Type Disp ETF
Volume 981,702
Yield 0.041500002
Ytd Return -0.40361