# Portfolio overlap — DMBS vs BAFZX Comparing **DoubleLine Mortgage ETF** (2026-03-31) and **Brown Advisory Mortgage Securities Fund** (2026-03-31). - Shared positions: 6 - DoubleLine Mortgage ETF covered by Brown Advisory Mortgage Securities Fund: 0.07943544751303580545902459654 - Brown Advisory Mortgage Securities Fund covered by DoubleLine Mortgage ETF: 0.07943544751303580545902459654 ## DoubleLine Mortgage ETF — top positions | Security | Weight | Shared | |----------|--------|--------| | FNCL 5 4/26 | 0.074245 | ✓ | | FNCL 2 4/26 | 0.042131 | ✓ | | JPMORGAN US GOVERNMENT MONEY MARKET FUND OPEN-END FUND USD | 0.034505 | | | UMBS, 30 Year | 0.020542 | | | UMBS, 30 Year | 0.020103 | | | UMBS, 30 Year | 0.017605 | | | Fannie Mae REMICS | 0.017204 | | | UMBS, 30 Year | 0.017055 | | | FR SD8492 | 0.016660 | | | UMBS, 30 Year | 0.016626 | | | UMBS, 30 Year | 0.016442 | | | FNCL 2.5 4/26 | 0.016017 | ✓ | | GNMA | 0.015094 | | | GNMA | 0.014876 | | | Government National Mortgage Association | 0.014656 | | | UMBS, 30 Year | 0.014421 | | | UMBS, 30 Year | 0.014023 | | | FNCL 3.5 4/26 | 0.012612 | ✓ | | UMBS, 30 Year | 0.012164 | | | UMBS, 30 Year | 0.011578 | | | UMBS, 30 Year | 0.011402 | | | FR SL0810 | 0.011233 | | | UMBS, 30 Year | 0.011176 | | | UMBS, 30 Year | 0.010880 | | | FNCL UMBS 3.0 BV8526 05-01-52 | 0.010770 | | | GS Mortgage-Backed Securities Trust, Series 2025-NQM2, Class M1 | 0.010587 | | | FR SD7535 | 0.010449 | | | UMBS, 30 Year | 0.010303 | | | GNMA | 0.010108 | | | UMBS, 30 Year | 0.009743 | | | UMBS, 30 Year | 0.009492 | | | UMBS, 30 Year | 0.009350 | | | UMBS, 20 Year | 0.008872 | | | Verus Securitization Trust, Series 2025-11, Class M1 | 0.008260 | | | FNCL UMBS 2.5 BU6901 04-01-52 | 0.008159 | | | UMBS, 30 Year | 0.008115 | | | UMBS, 30 Year | 0.008025 | | | UMBS, 30 Year | 0.007760 | | | UMBS, 30 Year | 0.007687 | | | UMBS, 30 Year | 0.007476 | | | FREDDIE MAC STACR REMIC TRUST STACR 2024 DNA1 M2 144A | 0.007440 | | | FNCL 3 4/26 | 0.007417 | ✓ | | Government National Mortgage Association | 0.007315 | | | Fannie Mae Pool | 0.006940 | | | UMBS, 30 Year | 0.006645 | | | FNMA 30YR 3% 03/01/2050#FM3302 | 0.006543 | | | FN FS7252 | 0.006494 | | | OBX Trust, Series 2025-NQM8, Class M1 | 0.006436 | | | J.P. Morgan Mortgage Trust, Series 2026-NQM1, Class M1 | 0.006209 | | | FANNIE MAE POOL FN 02/52 FIXED VAR | 0.006054 | | ## Brown Advisory Mortgage Securities Fund — top positions | Security | Weight | Shared | |----------|--------|--------| | U.S. Treasury Bills | 0.076032 | | | FNCL 2 4/26 | 0.070820 | ✓ | | FRST AM-GV OB-Z | 0.034419 | | | FNCL 3 4/26 | 0.030266 | ✓ | | FNCL 3.5 4/26 | 0.024091 | ✓ | | FNCL 4.5 4/26 | 0.022930 | | | FNCL 5 4/26 | 0.014519 | ✓ | | FNCL 4 4/26 | 0.013134 | | | Freddie Mac Pool | 0.011679 | | | VZMT 2024-5 A 144A 5.0% 06-21-32 | 0.008791 | | | UMBS, 30 Year | 0.008405 | | | FN CB3103 | 0.008276 | | | G2 MA8348 | 0.008240 | | | FNMA POOL FS0348 FN 01/52 FIXED VAR | 0.008219 | | | Fannie Mae Pool | 0.008156 | | | FR RA5286 | 0.008084 | | | FR RA7784 | 0.008011 | | | FR RA5971 | 0.007910 | | | Fannie Mae Pool | 0.007830 | | | Fannie Mae Pool | 0.007789 | | | FNCL UMBS 2.0 CB2789 02-01-52 | 0.007658 | | | Fannie Mae Pool | 0.007648 | | | FNCL UMBS 2.5 FS4862 10-01-51 | 0.007645 | | | FNCL UMBS 2.0 BV4128 03-01-52 | 0.007611 | | | Fannie Mae Pool | 0.007577 | | | Fannie Mae Pool | 0.007557 | | | Freddie Mac Pool | 0.007539 | | | FNMA POOL MB0291 FN 12/54 FIXED 5 | 0.007408 | | | FNMA UMBS, 30 Year | 0.007407 | | | Freddie Mac Pool | 0.007384 | | | Uniform Mortgage-Backed Securities | 0.007288 | | | UMBS, 30 Year | 0.007277 | | | Freddie Mac Pool | 0.007220 | | | G2 MA7312 | 0.007180 | | | FNMA UMBS, 30 Year | 0.007169 | | | FREDDIE MAC POOL FR SD3475 | 0.007137 | | | Fannie Mae Pool | 0.007083 | | | Freddie Mac Pool | 0.006958 | | | Fannie Mae Pool | 0.006697 | | | FREDDIE MAC POOL FR SD0846 | 0.006387 | | | FN CB2548 | 0.006315 | | | FNMA 30YR 2.5% 01/01/2052#CB2539 | 0.006221 | | | FN FS8791 | 0.006198 | | | FNMA UMBS, 30 Year | 0.006191 | | | FR SD8200 | 0.006131 | | | Fannie Mae Pool | 0.005993 | | | AUTONATION FINANCE TRUST 2026 1 | 0.005971 | | | Uniform Mortgage-Backed Securities | 0.005963 | | | DRVPNK 2026-1A A4 | 0.005860 | | | Freddie Mac Pool | 0.005822 | | ## Sources - N-PORT (fund A) — accession `0002071691-26-012537` (as of 2026-03-31) - N-PORT (fund B) — accession `0000894189-26-016027` (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 _