Fidelity Merrimack Street Trust. Holdings as of May 31, 2026, from Form N-PORT.
Share of net assets at the report date, for the whole fund across all share classes.
| Holding | Weight | Value | Shares or units |
|---|---|---|---|
| Fidelity Revere Street TrustCash or money market | 4.62% | $1.20B | 1,204,478,214 |
| UST NOTESBond | 2.34% | $608.99M | 621,200,000 |
| UST NOTESBond | 2.21% | $576.40M | 590,898,000 |
| UST NOTESBond | 2.17% | $566.15M | 573,200,000 |
| UST NOTESBond | 1.81% | $471.09M | 487,160,000 |
| UNITED STATES TREASURY BONDBond | 1.53% | $399.75M | 451,441,000 |
| UST NOTESBond | 1.49% | $388.24M | 397,000,000 |
| UNITED STATES TREASURY BONDBond | 1.26% | $328.64M | 355,800,000 |
| UST NOTESBond | 1.20% | $312.46M | 317,372,000 |
| FNMA/FHLG TBA ISSUERABS-MBS | 1.19% | $309.97M | 387,400,000 |
| UST NOTESBond | 1.18% | $306.20M | 307,500,000 |
| GNMA II GTD PASS THRU CTF MULTIPLE ISSUERABS-MBS | 1.14% | $297.44M | 295,600,000 |
| UNITED STATES TREASURY BONDBond | 1.12% | $293.00M | 304,300,000 |
| UNITED STATES TREASURY BONDBond | 1.04% | $271.43M | 282,005,000 |
| UST NOTESBond | 1.03% | $269.39M | 270,732,000 |
| UST NOTESBond | 1.02% | $265.57M | 267,900,000 |
| UST NOTESBond | 1.02% | $265.42M | 266,800,000 |
| UNITED STATES TREASURY BONDBond | 0.96% | $251.25M | 260,700,000 |
| UST NOTESBond | 0.93% | $243.08M | 251,327,000 |
| GNMA II GTD PASS THRU CTF MULTIPLE ISSUERABS-MBS | 0.89% | $232.67M | 235,550,000 |
| UST NOTESBond | 0.87% | $227.36M | 223,484,000 |
| UNITED STATES TREASURY BONDBond | 0.84% | $217.97M | 256,713,000 |
| FNMA/FHLG TBA ISSUERABS-MBS | 0.83% | $216.46M | 270,625,000 |
| UNITED STATES TREASURY BONDBond | 0.83% | $215.50M | 228,265,000 |
| UNITED STATES TREASURY BONDBond | 0.82% | $212.72M | 225,620,000 |
| GNMA II GTD PASS THRU CTF MULTIPLE ISSUERABS-MBS | 0.76% | $198.19M | 197,300,000 |
| UNITED STATES TREASURY BONDBond | 0.75% | $194.58M | 219,685,000 |
| FNMA/FHLG TBA ISSUERABS-MBS | 0.73% | $189.39M | 192,425,000 |
| UST NOTESBond | 0.69% | $180.45M | 184,200,000 |
| UNITED STATES TREASURY BONDBond | 0.60% | $155.71M | 196,335,000 |
| UST NOTESBond | 0.59% | $154.19M | 161,414,000 |
| UST NOTESBond | 0.54% | $140.07M | 148,150,000 |
| UST NOTESBond | 0.53% | $137.46M | 141,750,000 |
| UST NOTESBond | 0.53% | $137.13M | 137,683,000 |
| UST NOTESBond | 0.50% | $129.48M | 131,135,000 |
| UST NOTESBond | 0.48% | $126.35M | 124,872,000 |
| UNITED STATES TREASURY BONDBond | 0.47% | $123.24M | 142,118,000 |
| UST NOTESBond | 0.47% | $123.02M | 126,300,000 |
| UST NOTESBond | 0.47% | $122.00M | 121,720,000 |
| UST NOTESBond | 0.46% | $121.09M | 122,235,000 |
| GNMA II GTD PASS THRU CTF MULTIPLE ISSUERABS-MBS | 0.45% | $118.22M | 144,050,000 |
| JPMORGAN CHASE and COBond | 0.45% | $116.37M | 116,938,000 |
| FNMA/FHLG TBA ISSUERABS-MBS | 0.44% | $114.57M | 112,200,000 |
| UST NOTESBond | 0.42% | $109.29M | 112,500,000 |
| BANK OF AMERICA CORPORATIONBond | 0.41% | $108.11M | 109,825,000 |
| UST NOTESBond | 0.41% | $107.49M | 108,800,000 |
| GNMA II GTD PASS THRU CTF MULTIPLE ISSUERABS-MBS | 0.41% | $106.97M | 105,000,000 |
| JPMORGAN CHASE and COBond | 0.39% | $102.18M | 102,517,000 |
| FNMA/FHLG TBA ISSUERABS-MBS | 0.39% | $101.11M | 115,725,000 |
| UNITED STATES TREASURY BONDBond | 0.39% | $100.42M | 106,475,000 |
Holdings from the fund's latest Form N-PORT; expense ratio (net of fee waivers) from the risk/return summary of its prospectus; fund type from Form N-CEN. Prices are end-of-day closes adjusted for splits; total return also reinvests distributions.