Money Market Fund Holdings
Washington, DC, June 12, 2026— The Investment Company Institute (ICI) reports that, as of the final Friday in May, prime money market funds held 45.6 percent of their portfolios in daily liquid assets and 62.5 percent in weekly liquid assets, while government money market funds held 73.5 percent of their portfolios in daily liquid assets and 85.9 percent in weekly liquid assets.
At the end of May, prime funds had a weighted average maturity (WAM) of 41 days and a weighted average life (WAL) of 61 days. Average WAMs and WALs are asset-weighted. Government money market funds had a WAM of 43 days and a WAL of 96 days.
Prime and Government Money Market Funds’ Liquid Assets as of the Final Friday of the Month, Weighted Average Maturities and Weighted Average Lives
|
Prime money market funds |
|||
| Liquid assets | April 2026 | May 2026 | Regulatory minimum |
|
Percentage of total assets Daily liquid assets |
45.8% | 45.6% | 25% |
| Weekly liquid assets | 62.3% | 62.5% | 50% |
| Weighted average maturity and Weighted average life |
April 2026 | May 2026 | Regulatory maximum |
| Number of days | |||
| Weighted average maturity | 38 | 41 | 60 |
| Weighted average life | 59 | 61 | 120 |
|
Government money market funds |
|||
| Liquid assets | April 2026 | May 2026 | Regulatory minimum |
|
Percentage of total assets Daily liquid assets |
71.6% | 73.5% | 25% |
| Weekly liquid assets | 83.9% | 85.9% | 50% |
| Weighted average maturity and Weighted average life |
April 2026 | May 2026 | Regulatory maximum |
| Number of days | |||
| Weighted average maturity | 44 | 43 | 60 |
| Weighted average life | 98 | 96 | 120 |
Holdings by Region of Issuer
Prime money market funds’ holdings attributable to the Americas rose from $763.06 billion in April to $767.14 billion in May. Government money market funds’ holdings attributable to the Americas rose from $5,799.64 billion in April to $5,967.80 billion in May.
Prime and Government Money Market Funds’ Holdings, by Region of Issuer*
Millions of dollars and as a percentage of portfolio securities
| Prime money market funds | |||||||||||||
| Region | 4/30/2026 | 5/31/2026 | |||||||||||
| Americas | $763,056 | 63.0% | $767,135 | 62.8% | |||||||||
| Asia and Pacific | 165,568 | 13.7 | 164,880 | 13.5 | |||||||||
| Europe | 268,379 | 22.2 | 275,987 | 22.6 | |||||||||
| Supranational | 500 | 0.1 | 6 | 0.1 | |||||||||
| Other | 13,015 | 1.1 | 13,712 | 1.1 | |||||||||
| Total | $1,210,517 | 100.0% | $1,221,721 | 100.0% | |||||||||
| Government money market funds | |||||||||||||
| Region | 4/30/2026 | 5/31/2026 | |||||||||||
| Americas | $5,799,637 | 92.0% | $5,967,795 | 92.0% | |||||||||
| Asia and Pacific | 106,472 | 1.7 | 113,539 | 1.8 | |||||||||
| Europe | 367,941 | 5.8 | 374,845 | 5.8 | |||||||||
| Supranational | 0 | 0.0 | 0 | 0.0 | |||||||||
| Other | 28,152 | 0.4 | 28,308 | 0.4 | |||||||||
| Total | $6,302,203 | 100.0% | $6,484,487 | 100.0% | |||||||||
*The region of the issuer is defined by location of the parent firm headquarters. Percentages are calculated by adding up the value of all securities of the indicated type by the region of the security’s issuer and dividing that amount by the total value of all securities of the indicated type. The other category consists of unclassified securities and countries with less than 0.25 percent of asset exposure.
More Information About the Data
Each month, ICI reports numbers based on the Securities and Exchange Commission’s Form N-MFP data. The report includes all money market funds registered under the Securities Act of 1933 and the Investment Company Act of 1940, that are publicly offered. All master funds are excluded, but feeders are apportioned from the corresponding master and included in the report.
More detailed data are available in the report, and historical reports are also available.
If you have any questions or would like to request additional comments on this or data on another topic, please contact a member of ICI’s Media Relations team at 202-371-5413 or icipubcomm@ici.org.