# Portfolio overlap — MFSB vs SPTL Comparing **MFS Active Core Plus Bond ETF** (2026-02-28) and **State Street(R) SPDR(R) Portfolio Long Term Treasury ETF** (2026-03-31). - Shared positions: 9 - MFS Active Core Plus Bond ETF covered by State Street(R) SPDR(R) Portfolio Long Term Treasury ETF: 0.1107746353939102377975048362 - State Street(R) SPDR(R) Portfolio Long Term Treasury ETF covered by MFS Active Core Plus Bond ETF: 0.1107746353939102377975048362 ## MFS Active Core Plus Bond ETF — top positions | Security | Weight | Shared | |----------|--------|--------| | US TREASURY N/B | 0.051092 | ✓ | | US TREASURY N/B | 0.044370 | | | State Street Navigator Securities Lending Portfolio II | 0.031781 | ✓ | | US TREASURY N/B | 0.023377 | ✓ | | US TREASURY N/B | 0.022542 | ✓ | | US TREASURY N/B | 0.022455 | ✓ | | US TREASURY N/B | 0.015378 | ✓ | | US TREASURY N/B | 0.013773 | ✓ | | US TREASURY N/B | 0.012371 | | | FN MA5552 | 0.009356 | | | US TREASURY N/B | 0.008048 | ✓ | | Uniform Mortgage-Backed Security, TBA | 0.007308 | | | US TREASURY N/B | 0.006491 | ✓ | | STOAU 5.75 11/13/35 144A | 0.006487 | | | BOSTON PROP LP | 0.006377 | | | NRZT, Series 2025-NQM6, Class A1 | 0.006199 | | | MF1 LLC, Series 2025-FL20, Class C | 0.005991 | | | BOEING CO/THE | 0.005841 | | | PMT Loan Trust, Series 2026-INV2, Class A35 | 0.005736 | | | HIGHWOODS REALTY | 0.005724 | | | ENERGY TRANS | 0.005720 | | | New Residential Mortgage Loan Trust, Series 2026-NQM3, Class A1 | 0.005589 | | | FR SD8199 | 0.005546 | | | Bain Capital Credit CLO 2021-4 Ltd | 0.005524 | | | VORNADO REALTY LP SR UNSECURED 02/33 5.75 | 0.005510 | | | FR SD8213 | 0.005476 | | | NTT FINANCE | 0.005438 | | | CBRE SERVICES IN | 0.005399 | | | Dryden 98 CLO Ltd | 0.005312 | | | C V6.875 PERP GG | 0.005289 | | | Unity-Peace Park CLO Ltd | 0.005282 | | | AVOLON HOLDINGS FUNDING LTD 4.95% 10/15/2032 144A | 0.005133 | | | Enel SPA 7.50 10/14/2032 | 0.005042 | | | JEFFERIES GROUP | 0.004998 | | | ROGERS COMMUNIC | 0.004905 | | | JAPAN TOBACCO INC SR UNSECURED 144A 06/35 5.85 | 0.004833 | | | FN MA4562 | 0.004737 | | | DICK'S SPORTING | 0.004732 | | | ELM Trust, Series 2024-ELM, Class C15 | 0.004696 | | | FR 5.25 01/15/31 | 0.004667 | | | FERGUSON ENTERPR | 0.004658 | | | CHARLES SCHWAB | 0.004591 | | | TARGA RESOURCES | 0.004565 | | | JPMORGAN CHASE | 0.004514 | | | ASHTEAD CAPITAL | 0.004497 | | | BROWN & BROWN | 0.004418 | | | AUTONATION INC | 0.004346 | | | WELLS FARGO CO | 0.004287 | | | PFP Ltd., Series 2026-13, Class AS | 0.004267 | | | Dryden 86 CLO Ltd., Series 2020-86A, Class CR2 | 0.004249 | | ## State Street(R) SPDR(R) Portfolio Long Term Treasury ETF — top positions | Security | Weight | Shared | |----------|--------|--------| | US TREASURY N/B | 0.023304 | | | US TREASURY N/B | 0.023112 | ✓ | | US TREASURY N/B | 0.022848 | ✓ | | US TREASURY N/B | 0.022687 | | | US TREASURY N/B | 0.022522 | | | US TREASURY N/B | 0.022276 | | | US TREASURY N/B | 0.022201 | ✓ | | US TREASURY N/B | 0.021455 | ✓ | | US TREASURY N/B | 0.021094 | | | US TREASURY N/B | 0.018938 | | | US TREASURY N/B | 0.016906 | | | US TREASURY N/B | 0.015929 | | | US TREASURY N/B | 0.015846 | | | US TREASURY N/B | 0.015790 | | | US TREASURY N/B | 0.015571 | | | US TREASURY N/B | 0.015132 | ✓ | | US TREASURY N/B | 0.014735 | | | US TREASURY N/B | 0.014717 | | | US TREASURY N/B | 0.014489 | ✓ | | US TREASURY N/B | 0.014348 | | | US TREASURY N/B | 0.014265 | ✓ | | US TREASURY N/B | 0.014251 | | | US TREASURY N/B | 0.014181 | | | US TREASURY N/B | 0.014125 | ✓ | | US TREASURY N/B | 0.014105 | | | US TREASURY N/B | 0.014100 | | | US TREASURY N/B | 0.014047 | | | US TREASURY N/B | 0.014040 | | | US TREASURY N/B | 0.013816 | | | US TREASURY N/B | 0.013504 | | | US TREASURY N/B | 0.013218 | | | US TREASURY N/B | 0.012880 | | | US TREASURY N/B | 0.012749 | | | US TREASURY N/B | 0.012082 | | | US TREASURY N/B | 0.011929 | | | US TREASURY N/B | 0.011826 | | | US TREASURY N/B | 0.011759 | | | US TREASURY N/B | 0.011752 | | | US TREASURY N/B | 0.011744 | | | US TREASURY N/B | 0.011716 | | | US TREASURY N/B | 0.011693 | | | US TREASURY N/B | 0.011634 | | | US TREASURY N/B | 0.011595 | | | US TREASURY N/B | 0.011227 | | | US TREASURY N/B | 0.011154 | | | US TREASURY N/B | 0.011024 | | | US TREASURY N/B | 0.010991 | | | US TREASURY N/B | 0.010438 | | | US TREASURY N/B | 0.010130 | | | US TREASURY N/B | 0.010088 | | ## Sources - N-PORT (fund A) — accession `0001410368-26-040065` (as of 2026-02-28) - N-PORT (fund B) — accession `0001410368-26-055568` (as of 2026-03-31) --- _Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them._ _Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._ _Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed. See _