What does the US Money Market Funds Total Assets table measure?

The table measures total assets held by United States money market funds, broken down by investment type including Treasury securities, federal agency and GSE securities, banking-related assets, and repurchase agreements, along with median yields.

How often is this data published and how far back does it go?

The data is published monthly as end-of-month values by the Office of Financial Research in the Short-term Funding Monitor, with the time series starting in November 2010.

What specific repo breakdowns are provided in the portfolio data?

The repurchase agreement component is analyzed along three dimensions: by collateral type, by maturity, and by counterparty, including activity with the Federal Reserve, FICC, and depository institutions.

What units and metrics are used in the table?

Total assets are reported in USD billion as end-of-month values, and median yields for each repo category are reported in percentage per year.

US Money Market Funds Total Assets

Name: US Money Market Funds Total Assets
Creator: Office of Financial Research (Short-term Funding Monitor)
License: https://creativecommons.org/licenses/by/4.0/

US money market fund total investment assets and portfolios from the Office of Financial Research.

Latest reading

Money market fund total investment assets stood at 8,530.63 USD billion in Aug 2026. That is +1.4% from Jul 2026 and +10.7% from a year earlier. The series on this page is monthly and runs from Nov 2010 to Aug 2026. Source: Office of Financial Research (Short-term Funding Monitor).

Latest: 8,530.63 USD billion; Aug 2026
vs previous period: +1.4%; Jul 2026
vs a year earlier: +10.7%

About this data

US money market fund total investment assets and portfolios from the Office of Financial Research. This monthly series details holdings in Treasury securities, federal agency and GSE securities, banking-related assets, and repurchase agreements. The data is available in USD billion and percent per year starting from 2010.

Frequently asked questions

What does the US Money Market Funds Total Assets table measure?: The table measures total assets held by United States money market funds, broken down by investment type including Treasury securities, federal agency and GSE securities, banking-related assets, and repurchase agreements, along with median yields.
How often is this data published and how far back does it go?: The data is published monthly as end-of-month values by the Office of Financial Research in the Short-term Funding Monitor, with the time series starting in November 2010.
What specific repo breakdowns are provided in the portfolio data?: The repurchase agreement component is analyzed along three dimensions: by collateral type, by maturity, and by counterparty, including activity with the Federal Reserve, FICC, and depository institutions.
What units and metrics are used in the table?: Total assets are reported in USD billion as end-of-month values, and median yields for each repo category are reported in percentage per year.

Indicator	08-2026	07-2026	06-2026	05-2026	04-2026	03-2026	02-2026	01-2026	12-2025	11-2025	10-2025	09-2025	08-2025	07-2025	06-2025	05-2025	04-2025	03-2025	02-2025	01-2025	12-2024	11-2024	10-2024	09-2024	08-2024	07-2024	06-2024	05-2024	04-2024	03-2024	02-2024	01-2024	12-2023	11-2023	10-2023	09-2023	08-2023
Money market fund total investment assets5	8,530.63	8,411.94	8,400.62	8,400.99	8,166.51	8,250.85	8,353.29	8,236.31	8,305.49	8,062.83	7,923.91	7,771.4	7,704.61	7,534.58	7,520.53	7,427.27	7,369.87	7,435.28	7,388.22	7,332.72	7,253.37	7,169.43	6,971.03	6,925.01	6,696.11	6,649.38	6,557.92	6,540.07	6,425.87	6,492.53	6,545.93	6,485.43	6,401.33	6,353.12	6,128.45	6,161.14	6,098.02
Treasury securities	3,696.65	3,452.56	3,281.21	3,378.36	3,181.66	3,426.44	3,406.75	3,375.78	3,517.83	3,472.65	3,405.96	3,232.35	3,148.63	2,732.42	2,614.03	2,699.64	2,714.43	2,880.57	2,967.06	3,084.73	2,994.85	3,064.57	2,877.64	2,659.84	2,567.65	2,485.2	2,450.02	2,466.81	2,415.16	2,563.68	2,577.95	2,382.21	2,269.52	2,198.64	1,951.88	1,767.12	1,597.06
Federal agency and GSE securities	1,174.14	1,214.75	1,207.94	1,193.88	1,189.19	1,100.21	1,102.7	1,074.28	1,013.12	990.36	994.64	998.79	974.62	993.41	992.84	983.19	979.29	902.43	885.76	893.51	886.36	853.66	855.38	793.74	775.28	766.99	741.26	753.8	733.5	728.89	743.58	750.29	708.17	731.2	726.43	690.23	699.67
Banking-related assets	471.95	467.39	481.09	482.88	472.74	461.89	498.57	491.89	451.8	442.79	437.34	449.24	514.18	515.22	487.12	511.86	500.15	522.12	500.22	502.8	464.51	555.6	522.97	506.68	545.87	546.09	488.5	551.27	537.29	540.91	580.68	572.89	483.48	557.69	542.69	491.44	510.44
Repurchase agreements (repo)11	2,832.19	2,925.26	3,074.63	3,004.24	2,985.72	2,931.97	3,003.58	2,960.97	2,994.43	2,834.44	2,765.83	2,772.42	2,743.4	2,977.32	3,105.34	2,913.51	2,851.64	2,821.3	2,728.6	2,550.77	2,620.2	2,412.19	2,433.44	2,688.38	2,539.44	2,583.04	2,614.94	2,500.99	2,471.98	2,381.75	2,365.67	2,497.2	2,665.98	2,592.08	2,628.78	2,948.8	3,031.78
Treasury-backed repo	1,694.93	1,798.11	1,915.73	1,877.09	1,872.23	1,833.43	1,856.89	1,839.55	1,950.52	1,805.4	1,739.8	1,768.14	1,730.51	1,935.41	2,072.06	1,909.12	1,903.49	1,879.11	1,802.47	1,719.81	1,782.51	1,561.36	1,613.24	1,864.56	1,733.64	1,775.84	1,823.74	1,711.36	1,721.34	1,613.05	1,574.56	1,658.02	1,898.32	1,797.88	1,910.06	2,237.21	2,343.19
Federal agency-backed repo	968.59	957.65	985.5	969.56	956.37	949.79	997.85	968.47	900.49	880.53	879.87	876.79	890.14	922.55	927.09	900.03	849.4	839.02	819.2	724.93	731.68	741.38	723.68	732.45	711.34	711.38	695.77	697.61	659.3	682.44	710.73	760.67	699.14	718.17	645.67	636.92	618.35
Other collateral repo	168.67	169.5	173.4	157.6	157.13	148.75	148.84	152.95	143.42	148.51	146.16	127.49	122.75	119.36	106.19	104.37	98.76	103.17	106.92	106.03	106.01	109.45	96.52	91.37	94.46	95.83	95.43	92.02	91.34	86.26	80.39	78.51	68.52	76.03	73.05	74.67	70.24
Overnight and open maturity repo	2,277.2	2,378.73	2,532.23	2,404.74	2,396.23	2,421.37	2,429.43	2,420.9	2,425.96	2,288.44	2,209.3	2,219.56	2,216.07	2,439.01	2,568.42	2,350.73	2,361.87	2,322.56	2,164.2	2,008.48	2,141.78	1,834.39	1,862.28	2,131.51	2,030.29	2,120.43	2,090.76	1,987.88	1,997.05	1,868.82	1,884.43	2,108.5	2,228.43	2,154.5	2,281.64	2,563.09	2,698.99
Repo with maturity up to 30 days	490.03	465.93	477.35	524.26	501.83	425.29	490.09	452.61	480.77	464.78	475.7	473.73	437.88	464.99	447.35	481.66	430.38	412.75	480.89	465.48	415.42	487.16	502.59	475.64	433.32	407.56	451.3	443.94	419.75	454.19	432.67	341.14	370.53	391.98	309.88	336.18	315
Repo with maturity over 30 days	64.96	80.59	65.04	75.24	87.66	85.32	84.06	87.46	87.7	81.22	80.83	79.13	89.45	73.33	89.57	81.12	59.39	86	83.51	76.8	63	90.64	68.57	81.23	75.82	55.05	72.89	69.17	55.18	58.74	48.57	47.56	67.03	45.6	37.26	49.53	17.79
Repo with FICC	947.66	1,075.93	1,301.06	1,168.72	1,163.91	1,255.69	1,185.08	1,190.26	1,297.87	1,162.62	1,112.52	1,114.93	954.95	1,104.59	1,073.67	939.15	998.89	927.53	887.26	915.71	864.69	786.8	777.89	797.91	642.9	634.94	539.09	532.73	517.37	504.92	490.62	483.76	446.68	419.36	376.84	365.62	365.72
Repo with Federal Reserve			6.83	5.64	2.59	6.41	7	3.3	72.59	6.84	32.55	22.05	54.97	180.11	389.36	281.81	214.38	348.69	201.4	148.09	382.43	169.73	173.62	429.78	391.47	382.46	618.25	415.8	508.71	537.77	464.92	583.44	968.68	849.27	1,084.12	1,483.95	1,565.15
Repo with depository institutions	871.25	893.07	839.49	852.57	917.16	795.14	830.9	857.3	719.98	691.72	697.24	688.3	735.54	772.59	719.17	700.42	738.72	664.74	724.12	642.73	580.18	563.01	591.31	619.99	637.48	645.66	619.28	642.43	581.49	521.44	540.45	565.47	501.39	479.71	424.19	412.17	380.31
Repo with foreign financial institutions	1,007.88	950.5	921.47	971.14	895.95	867.87	973.6	903.19	897.06	967.13	917.38	940.85	991.74	913.79	916.9	985.96	894.19	875.31	910.83	839.49	788.38	888.01	886	836.06	862.72	915.05	833.43	904.74	859.14	812.2	864.32	859.35	743.93	839.21	739.26	683.3	716.61
Repo with other counterparties	5.41	5.76	5.77	6.17	6.11	6.87	7	6.91	6.93	6.14	6.13	6.3	6.2	6.23	6.25	6.18	5.47	5.03	5	4.74	4.51	4.64	4.62	4.63	4.87	4.93	4.89	5.28	5.27	5.42	5.36	5.19	5.3	4.53	4.37	3.77	3.98
Other assets	355.7	351.99	355.75	341.62	337.2	330.35	341.69	333.39	328.31	322.58	320.14	318.59	323.77	316.21	321.19	319.06	324.36	308.86	306.57	300.91	287.44	283.4	281.59	276.37	267.86	268.05	263.19	267.21	267.95	277.3	278.04	282.84	274.17	273.52	278.67	263.55	259.07
MEDIAN YIELD7
All repo	3.67	3.65	3.65	3.62	3.65	3.67	3.67	3.67	3.82	4.08	4.15	4.2	4.34	4.36	4.39	4.34	4.37	4.36	4.36	4.35	4.45	4.59	4.86	4.88	5.32	5.34	5.32	5.33	5.32	5.32	5.31	5.32	5.33	5.31	5.3	5.3	5.3
Treasury-backed repo	3.67	3.65	3.64	3.62	3.64	3.66	3.67	3.66	3.82	4.08	4.15	4.2	4.33	4.36	4.39	4.34	4.37	4.36	4.36	4.34	4.45	4.58	4.85	4.87	5.32	5.34	5.32	5.33	5.31	5.32	5.31	5.31	5.3	5.3	5.3	5.3	5.3
Federal agency-backed repo	3.68	3.65	3.65	3.63	3.65	3.67	3.67	3.67	3.83	4.09	4.15	4.21	4.34	4.37	4.4	4.35	4.38	4.37	4.37	4.35	4.46	4.59	4.87	4.89	5.33	5.35	5.33	5.34	5.33	5.33	5.32	5.32	5.35	5.32	5.31	5.31	5.31
Other collateral repo	3.83	3.84	3.82	3.82	3.84	3.85	3.85	3.83	3.87	4.15	4.17	4.28	4.51	4.53	4.54	4.53	4.54	4.54	4.54	4.53	4.55	4.75	5	4.99	5.5	5.52	5.52	5.52	5.5	5.52	5.49	5.47	5.54	5.48	5.48	5.48	5.49
Overnight and open maturity repo	3.67	3.65	3.65	3.62	3.65	3.67	3.67	3.67	3.83	4.08	4.15	4.2	4.34	4.36	4.4	4.34	4.38	4.36	4.36	4.35	4.45	4.59	4.86	4.88	5.32	5.34	5.32	5.33	5.32	5.32	5.31	5.32	5.33	5.31	5.3	5.3	5.3
Repo with maturity up to 30 days	3.67	3.67	3.65	3.64	3.65	3.66	3.67	3.66	3.75	4	4.04	4.16	4.34	4.33	4.33	4.32	4.31	4.32	4.33	4.34	4.43	4.59	4.84	4.84	5.33	5.33	5.33	5.33	5.33	5.33	5.32	5.32	5.35	5.32	5.32	5.31	5.31
Repo with maturity over 30 days	3.79	3.73	3.72	3.71	3.71	3.69	3.7	3.72	3.86	3.98	4.06	4.21	4.35	4.36	4.37	4.34	4.37	4.35	4.37	4.37	4.55	4.65	4.8	5.11	5.29	5.31	5.36	5.34	5.34	5.34	5.35	5.38	5.4	5.41	5.27	5.32	5.37