# Portfolio overlap — MBDIX vs MFSB

Comparing **MFS Corporate Bond Fund** (2026-04-30) and **MFS Active Core Plus Bond ETF** (2026-02-28).

- Shared positions: 47
- MFS Corporate Bond Fund covered by MFS Active Core Plus Bond ETF: 0.09601876659680514112161225417
- MFS Active Core Plus Bond ETF covered by MFS Corporate Bond Fund: 0.09601876659680514112161225417

## MFS Corporate Bond Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| MFS Institutional Money Market Portfolio, Class A | 0.017740 |  |
| UBS GROUP | 0.007773 |  |
| JPMORGAN CHASE | 0.007604 |  |
| BOEING CO | 0.007480 | ✓ |
| CHARLES SCHWAB | 0.006201 | ✓ |
| BERMUDA GOVERNMENT OF 5% 07/15/2032 144A | 0.005893 |  |
| MORGAN STANLEY | 0.005800 |  |
| SUMITOMO MITSUI | 0.005766 |  |
| UBS GROUP | 0.005436 |  |
| CAIXABANK SA REGD V/R 144A P/P 6.84000000 | 0.005384 |  |
| AMERICAN HOMES 4 | 0.005073 |  |
| AIB V6.608 09/13/29 144A | 0.005066 |  |
| SPIRE INC | 0.004968 |  |
| NXP BV/NXP FDG | 0.004960 |  |
| MARS INC | 0.004600 |  |
| BACARDI LTD / MARTINI BV SR UNSECURED 144A 06/33 5.4 | 0.004590 |  |
| Element Fleet Management Corp. | 0.004560 |  |
| Bank Hapoalim BM | 0.004543 |  |
| JPMORGAN CHASE | 0.004530 | ✓ |
| NATL AUSTRALIABK | 0.004512 |  |
| Jane Street Group / JSG Finance Inc. | 0.004463 |  |
| CG 5.05 09/19/35 | 0.004446 |  |
| MXPRLL 7.75 07/15/30 144A | 0.004425 |  |
| Boston Gas Co | 0.004363 |  |
| SCIH SALT HOLDINGS INC SR SECURED 144A 05/28 4.875 | 0.004290 |  |
| PIONEER NATURAL | 0.004253 |  |
| Flutter Treasury DAC | 0.004243 |  |
| HIGHWOODS REALTY | 0.004223 | ✓ |
| AMAZON.COM INC | 0.004176 |  |
| STORE CAPITAL LLC SR UNSECURED 12/31 2.7 | 0.004161 | ✓ |
| ICON Investments Six DAC | 0.004146 |  |
| JPMORGAN CHASE | 0.004129 |  |
| NSTAU 6.125 04/11/33 144A | 0.004097 | ✓ |
| SMBC AVIATION CAPITAL FI REGD 144A P/P 5.30000000 | 0.004093 |  |
| MUFG V5.188 09/12/36 | 0.004068 |  |
| PRMWCN 4.375 04/30/29 144a | 0.004063 |  |
| Citadel Securities Global Holdings LLC | 0.004050 |  |
| TARGA RESOURCES | 0.004008 |  |
| US TREASURY N/B | 0.003993 |  |
| TransDigm, Inc. | 0.003963 |  |
| CHENIERE ENERGYP | 0.003955 |  |
| EASTERN ENERGY | 0.003948 |  |
| US TREASURY N/B | 0.003907 |  |
| AMERICAN INTERNA | 0.003883 |  |
| DANSKE BANK A/S | 0.003834 |  |
| FERGUSON ENTERPR | 0.003832 | ✓ |
| SUNOCO LP SR UNSECURED 144A 08/32 6.625 | 0.003818 |  |
| NORDEA BANK ABP | 0.003808 |  |
| JERSEY CENTRAL PWR + LT SR UNSECURED 144A 03/32 2.75 | 0.003803 |  |
| ARDN Mortgage Trust, Series 2025-ARCP, Class A | 0.003763 |  |

## 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 |  |


## Sources

- N-PORT (fund A) — accession `0002071691-26-015565` (as of 2026-04-30)
  <https://www.sec.gov/Archives/edgar/data/63075/000207169126015565/0002071691-26-015565-index.htm>
- N-PORT (fund B) — accession `0001410368-26-040065` (as of 2026-02-28)
  <https://www.sec.gov/Archives/edgar/data/2018846/000141036826040065/0001410368-26-040065-index.htm>

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_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._

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