SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF
US ˙ ARCA

SecuritySPMB / SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF
InstitutionCertified Advisory Corp
Latest Disclosed Ownership415,543 shares
Latest Disclosed Value $ 9,303,997
Certified Advisory Corp reports 3.86% increase in ownership of SPMB / SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF

On April 17, 2026 - Certified Advisory Corp filed a 13F-HR form disclosing ownership of 415,543 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF (US:SPMB) valued at $9,304,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 400,087 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF. This represents a change in shares of 3.86% during the quarter. The current value of the position is $9,216,744 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-17 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 415,543 15,456 3.86 9,304 3.75 0.8344
2026-01-12 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 400,087 16,083 4.19 8,968 4.06 0.8171
2025-11-13 2025-09-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 384,004 11,628 3.12 8,617 4.72 0.8184
2025-08-14 2025-06-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 372,376 18,294 5.17 8,229 5.41 0.8554
2025-05-08 2025-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 354,082 9,462 2.75 7,807 5.13 0.8839
2025-01-15 2024-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 344,620 12,643 3.81 7,427 -0.71 0.8060
2024-11-12 2024-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 331,977 13,036 4.09 7,479 8.72 0.8286
2024-08-13 2024-06-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 318,941 10,433 3.38 6,880 2.67 0.8630
2024-05-10 2024-03-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 308,508 25,068 8.84 6,701 7.11 0.9349
2024-02-09 2023-12-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 283,440 -12,521 -4.23 6,256 10.28 0.9489
2023-11-13 2023-09-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 295,961 18,501 6.67 5,673 -6.70 1.0431
2023-08-14 2023-06-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 277,460 34,984 14.43 6,079 13.03 1.1178
2023-05-17 2023-03-31 13F/A-1 SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 242,476 106,818 78.74 5,378 82.74 0.9560
2023-05-15 2023-03-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 242,476 106,818 5,378 0.9557
2023-02-15 2022-12-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 135,658 44,499 48.81 2,944 50.54 0.5818
2022-11-14 2022-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 91,159 74,893 460.43 1,955 425.54 0.4461
2022-08-15 2022-06-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF PORT MTG BK ETF 78464A383 16,266 -4,271 -20.80 372 -24.39 0.0829
2022-05-13 2022-03-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 20,537 -130,172 -86.37 492 -87.14 0.1045
2022-02-14 2021-12-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 150,709 -9,376 -5.86 3,825 -7.09 0.8437
2021-11-15 2021-09-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 160,085 15,244 10.52 4,117 9.90 1.0002
2021-08-16 2021-06-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 144,841 8,584 6.30 3,746 6.03 0.9416
2021-05-10 2021-03-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 136,257 61,677 82.70 3,533 76.83 0.9159
2020-07-27 2020-06-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 74,580 13,078 21.26 1,998 21.76 0.6609
2020-04-27 2020-03-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 61,502 22,868 59.19 1,641 62.64 0.6486
2020-01-29 2019-12-31 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 38,634 19,140 98.18 1,009 97.07 0.3225
2019-11-12 2019-09-30 13F SPDR PORTFOLIO MORTGAGE BACKED BOND ETF ETF 78464A383 19,494 15,242 358.47 512 361.26 0.1779
2019-08-07 2019-06-30 13F SPDR BLOOMBERG BARCLAYS MORTGAGE BACKED BOND ETF ETF 78464A383 4,252 4,252 111 0.0413
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.