Fidelity Investments Money Market Treasury Portfolio - Class I

FISXX

GovernmentInstitutional
7-day Yield
#157
4.19%
as of 7/31/2025
Net assets
$28B
Expense ratio
0.18%
WAM
42
WAL
108
Minimum
$1M
Holding details
68% Treasuries
30% Treasury Repos
2% Other Instruments
as of 7/31/2025

Performance

Portfolio Securities

SecurityYield%
US Treasury Bill, UST BILLS 0% 09/16/20254.29%7.89%
US Treasury Bill, UST BILLS 0% 09/23/20254.33%4.61%
US Treasury Bill, UST BILLS 0% 08/07/20253.68%3.62%
US Treasury Notes, UST NOTES 3MB+15 04/30/20264.32%3.43%
US Treasury Notes, UST NOTES 3MB+9.8 01/31/20274.40%3.13%
US Treasury Bill, UST BILLS 0% 09/18/20254.29%2.88%
US Treasury Notes, UST NOTES 3MB+18.2 07/31/20264.36%2.87%
US Treasury Bill, UST BILLS 0% 09/09/20254.29%2.84%
US Treasury Bill, UST BILLS 0% 10/16/20254.29%2.48%
US Treasury Notes, UST NOTES 3MB+24.5 01/31/20264.33%2.43%
US Treasury Notes, UST NOTES 3MB+20.5 10/31/20264.39%2.39%
US Treasury Notes, UST NOTES 3MB+16 04/30/20274.41%2.18%
US Treasury Bill, UST BILLS 0% 09/04/20254.26%2.13%
US Treasury Bill, UST BILLS 0% 08/21/20254.12%1.69%
US Treasury Bill, UST BILLS 0% 08/28/20254.17%1.51%
US Treasury Bill, UST BILLS 0% 10/09/20254.30%1.48%
US Treasury Bill, UST BILLS 0% 10/23/20254.30%1.40%
US Treasury Notes, UST NOTES 5% 09/30/20254.39%1.39%
US Treasury Bill, UST BILLS 0% 11/18/20254.35%1.16%
US Treasury Bill, UST BILLS 0% 01/02/20264.28%1.11%
US Treasury Bill, UST BILLS 0% 10/28/20254.30%1.10%
US Treasury Bill, UST BILLS 0% 11/04/20254.32%1.08%
US Treasury Bill, UST BILLS 0% 09/11/20254.30%1.02%
US Treasury Bill, UST BILLS 0% 11/20/20254.31%1.00%
US Treasury Bill, UST BILLS 0% 09/30/20254.26%0.94%
US Treasury Bill, UST BILLS 0% 05/14/20264.18%0.91%
US Treasury Bill, UST BILLS 0% 11/12/20254.34%0.78%
US Treasury Bill, UST BILLS 0% 08/14/20254.00%0.71%
US Treasury Notes, UST NOTES 2% 08/15/20254.29%0.71%
US Treasury Notes, UST NOTES 4.5% 03/31/20264.29%0.68%
US Treasury Bill, UST BILLS 0% 12/02/20254.18%0.67%
US Treasury Bill, UST BILLS 0% 12/11/20254.26%0.59%
US Treasury Bill, UST BILLS 0% 12/18/20254.28%0.50%
US Treasury Bill, UST BILLS 0% 11/28/20254.33%0.49%
US Treasury Bill, UST BILLS 0% 09/02/20254.25%0.44%
US Treasury Notes, UST NOTES 1.625% 02/15/20264.29%0.44%
US Treasury Bill, UST BILLS 0% 07/09/20264.11%0.44%
US Treasury Notes, UST NOTES 0.75% 03/31/20264.26%0.42%
US Treasury Notes, UST NOTES 0.375% 12/31/20254.35%0.41%
US Treasury Notes, UST NOTES 0.5% 02/28/20264.33%0.41%
US Treasury Notes, UST NOTES 4.25% 12/31/20254.33%0.33%
US Treasury Notes, UST NOTES USBMMY3M+14.5 07/31/20274.38%0.32%
US Treasury Notes, UST NOTES 0.25% 09/30/20254.30%0.31%
US Treasury Bill, UST BILLS 0% 03/19/20264.22%0.27%
US Treasury Notes, UST NOTES 0.375% 01/31/20264.36%0.25%
US Treasury Notes, UST NOTES 1.625% 05/15/20264.18%0.24%
US Treasury Notes, UST NOTES 4.125% 06/15/20264.20%0.23%
US Treasury Bill, UST BILLS 0% 11/25/20254.35%0.21%
US Treasury Notes, UST NOTES 0.625% 07/31/20264.20%0.21%
US Treasury Notes, UST NOTES 4.875% 11/30/20254.41%0.17%
US Treasury Notes, UST NOTES 4.25% 01/31/20264.37%0.15%
US Treasury Bill, UST BILLS 0% 01/22/20264.29%0.14%
US Treasury Notes, UST NOTES 3.125% 08/15/20254.36%0.13%
US Treasury Bill, UST BILLS 0% 01/29/20264.29%0.12%
US Treasury Notes, UST NOTES 0.375% 11/30/20254.37%0.11%
US Treasury Bill, UST BILLS 0% 10/30/20254.31%0.09%
US Treasury Notes, UST NOTES 4.375% 07/31/20264.19%0.09%
US Treasury Notes, UST NOTES 0.75% 08/31/20264.16%0.09%
US Treasury Bill, UST BILLS 0% 08/12/20253.95%0.08%
US Treasury Notes, UST NOTES 4.875% 05/31/20264.26%0.08%
US Treasury Notes, UST NOTES 4.625% 02/28/20264.34%0.07%
US Treasury Bill, UST BILLS 0% 01/15/20264.30%0.05%
US Treasury Notes, UST NOTES 4.875% 04/30/20264.26%0.04%
US Treasury Notes, UST NOTES 4% 02/15/20264.30%0.02%
US Treasury Notes, UST NOTES 2.5% 02/28/20264.32%0.02%
US Treasury Notes, UST NOTES 4.625% 03/15/20264.14%0.02%
US Treasury Notes, UST NOTES 2.25% 03/31/20264.27%0.02%
US Treasury Notes, UST NOTES 0.25% 10/31/20254.31%0.01%
US Treasury Notes, UST NOTES 5% 10/31/20254.40%0.01%
US Treasury Notes, UST NOTES 2.125% 05/31/20264.25%0.01%
US Treasury Notes, UST NOTES 1.875% 07/31/20264.18%0.01%
Fixed Income Clearing Corp - State Street Bank, SSB FIT T RP 4.36% 8/1/254.36%4.68%
Fixed Income Clearing Corp - BNYM, BNY FIT T RP 4.36% 8/1/254.36%3.51%
JP Morgan Securities, LLC, MORGNSEC *G RP SOFR+0.02% 8/18/254.26%2.20%
Federal Reserve Bank of NY, FEDRESNY G RP 4.25% 8/1/254.25%2.01%
Fixed Income Clearing Corp - Credit Agricole, CAG FID G RP 4.39% 8/1/254.39%1.83%
Fixed Income Clearing Corp - Goldman, GS FIG T RP 4.36% 8/1/254.36%1.14%
Fixed Income Clearing Corp - Goldman, GS FIG T RP 4.36% 8/1/254.36%1.14%
Fixed Income Clearing Corp - BNP, BNP FIG T RP 4.36% 8/1/254.36%0.98%
Citigroup Global Capital Markets Inc., FICASH T3 4.36% 08/01/254.36%0.87%
Fixed Income Clearing Corp - ING, ING FIG T RP 4.36% 8/1/254.36%0.86%
Fixed Income Clearing Corp - BNP, BNP FIG T RP 4.36% 8/1/254.36%0.83%
JPMorgan Securities LLC, FICASH T3 4.36% 08/01/254.36%0.77%
Barclays Bank PLC, BPLCGR T RP 4.36% 8/1/254.36%0.63%
Fixed Income Clearing Corp - Mizuho, MIZ FIG T RP 4.36% 8/1/254.36%0.62%
Sumitomo Mitsui Banking Corp/New York, FICASH T3 4.36% 08/01/254.36%0.59%
SMBC Nikko Securities America, Inc., NIKKOGR T RP 4.37% 8/1/254.37%0.58%
Fixed Income Clearing Corp - Natixis, NAT FID T RP 4.36% 8/1/254.36%0.55%
Fixed Income Clearing Corp - Nomura, NOM FIG G RP 4.37% 8/1/254.37%0.54%
BNP Paribas, SA, BNP (GR) *G RP 4.35% 8/29/254.27%0.50%
Fixed Income Clearing Corp - Credit Agricole, CAG FID T RP 4.37% 8/1/254.37%0.48%
Fixed Income Clearing Corp - ING, ING FID G RP 4.36% 8/1/254.36%0.47%
BNP Paribas, SA, BNP (GR) *G RP 4.35% 8/28/254.27%0.39%
Fixed Income Clearing Corp - CIBC, CIB FID T RP 4.37% 8/1/254.37%0.31%
Prudential Insurance Co. of America, PRUINSGR T RP 4.37% 8/1/254.37%0.31%
Citigroup Global Capital Markets Inc., FICASH T4 4.36% 08/01/254.36%0.30%
Societe Generale, SOCGENFR G RP 4.39% 8/4/254.30%0.27%
Fixed Income Clearing Corp - Morgan Stanley, MS FIG T RP 4.36% 8/1/254.36%0.23%
MUFG Securities EMEA PLC, MUFSECGR *G RP 4.34% 8/7/254.25%0.23%
RBC Dominion Securities, RBCDOMGR G RP 4.35% 8/7/254.26%0.23%
BNP Paribas, SA, BNP (GR) *G RP 4.34% 8/25/254.26%0.23%
Citigroup Global Capital Markets, Inc., CITIGRP G RP SOFR+0.07% 9/30/254.33%0.23%
Royal Bank of Canada, RBC (GR) G RP 4.38% 8/5/254.29%0.22%
Fixed Income Clearing Corp - Goldman, GS FIG T RP 4.36% 8/1/254.36%0.19%
MUFG Securities EMEA PLC, MUFSECGR T RP 4.37% 8/1/254.37%0.16%
MUFG Securities EMEA PLC, MUFSECGR *G RP 4.38% 8/27/254.30%0.16%
HSBC Securities Inc. (U.S.A.), FICASH T4 4.36% 08/01/254.36%0.15%
HSBC Securities, Inc. (U.S.A.), HSBCSECS G RP 4.4% 8/5/254.31%0.15%
NatWest Market Securities Inc, NATSECGR G RP 4.35% 8/6/254.26%0.15%
ABN AMRO Bank NV, ABNGR T RP 4.36% 8/1/254.36%0.14%
Canadian Imperial Bank of Commerce, CIBCGR *G RP 4.33% 9/2/254.25%0.13%
Canadian Imperial Bank of Commerce, CIBCGR *G RP 4.35% 8/26/254.27%0.12%
TD Securities (U.S.A.), TDGR T RP 4.37% 8/1/254.37%0.11%
BofA Securities, Inc., BASGR *G RP SOFR+0.01% 8/27/254.25%0.11%
JPMorgan Securities LLC, FICASH T4 4.36% 08/01/254.36%0.10%
Lloyds Bank Corp Mrkts, LBCMGR G RP 4.4% 8/4/254.31%0.10%
Lloyds Bank Corp Mrkts, LBCMGR G RP 4.4% 8/6/254.31%0.09%
Canadian Imperial Bank of Commerce, CIBCGR *G RP 4.35% 8/28/254.27%0.08%
Mitsubishi UFJ Securities (U.S.A.), Inc., MUFJGR G RP 4.38% 10/22/254.33%0.08%
MUFG Securities (Canada), Ltd., MFGCAGR G RP 4.38% 10/22/254.33%0.08%
Mizuho Securities U.S.A., Inc., MIZUHO G RP 4.35% 8/6/254.26%0.06%
Lloyds Bank Corp Mrkts, LBCMGR G RP 4.39% 8/7/254.30%0.06%
BofA Securities, Inc., BASGR *G RP SOFR+0.01% 9/3/254.25%0.06%
Norinchukin Bank, NORGR G RP 4.38% 8/5/254.29%0.05%
Lloyds Bank PLC, LLOYDGR G RP 4.39% 8/7/254.30%0.05%
Lloyds Bank PLC, LLOYDGR G RP 4.39% 8/26/254.31%0.05%
Lloyds Bank PLC, LLOYDGR G RP 4.4% 8/28/254.32%0.05%
Canadian Imperial Bank of Commerce, CIBCGR T RP 4.36% 8/1/254.36%0.04%
NatWest Market Securities Inc, NATSECGR T RP 4.37% 8/1/254.37%0.04%
PNC Bank NA, PNC GR T RP 4.36% 8/1/254.36%0.04%
MUFG Securities (Canada), Ltd., MFGCAGR *G RP 4.37% 9/18/254.30%0.04%
BMO Chicago Branch, BMOCHIGR T RP 4.36% 8/1/254.36%0.03%
Lloyds Bank PLC, LLOYDGR G RP 4.4% 8/20/254.32%0.03%
Lloyds Bank PLC, LLOYDGR G RP 4.39% 9/26/254.32%0.03%
Rbc Dominion Securities Inc, FICASH T3 4.36% 08/01/254.36%0.02%
ING Financial Markets LLC, INGFIN G RP 4.38% 8/5/254.29%0.02%
Sumitomo Mitsui Banking Corp, SUMITRGT *G RP 4.37% 8/6/254.28%0.02%
Fixed Income Clearing Corp - Natwest, NTW FIG T RP 4.37% 8/1/254.37%0.01%
Societe Generale SA, FICASH T4 4.36% 08/01/254.36%0.01%
Sumitomo Mitsui Banking Corp/New York, FICASH T4 4.36% 08/01/254.36%0.00%
Fixed Income Clearing Corp - Credit Agricole, CAG FID G RP 4.36% 8/4/254.27%1.82%