MIPXX — MainStay Money Market Fund
Data updated: 2026-02-26
MIPXX — MainStay Money Market Fund. Money Market · 0.47% expense ratio. Holdings, fees, performance and SEC filings.
MIPXX Fund Overview
MIPXX — MainStay Money Market Fund is a US mutual fund managed by New York Life Investments Funds, categorised as Money Market. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: New York Life Investments Funds
- Category: Money Market
- Ticker: MIPXX
- SEC CIK: 0000787441
- SEC series ID: S000006897
- Share class ID: C000221692
MIPXX Investment Objective and Strategy
MainStay Money Market Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by New York Life Investments Funds.
Investment objective
The Fund seeks a high level of current income while preserving capital and maintaining liquidity.
Principal investment strategy
The Fund invests in short-term, high-quality, U.S. dollar-denominated securities that generally mature in 397 days (13 months) or less. The Fund maintains a dollar-weighted average maturity of 60 days or less and maintains a dollar-weighted average life to maturity of 120 days or less. The Fund seeks to maintain a stable $1.00 net asset value per share using the amortized cost method of valuation by operating as a retail money market fund, as such term is defined or interpreted pursuant to Rule 2a-7 under the Investment Company Act of 1940, as amended. As a retail money market fund, the Fund may be subject to the implementation of liquidity fees and redemption gates. The Fund may invest in obligations issued or guaranteed by the U.S. government or any of its agencies or instrumentalities; U.S.
and foreign bank and bank holding company obligations, such as certificates of deposit, bankers' acceptances and Eurodollars; commercial paper; time deposits; repurchase agreements; and corporate debt securities. The Fund may invest in variable rate notes, floaters, and mortgage-related and asset-backed securities. The Fund may also invest in foreign securities that are U.S. dollar-denominated securities of foreign issuers. The Fund will generally invest in obligations that mature in 397 days or less, substantially all of which will be held to maturity. However, the Fund may invest in securities with a face maturity of more than 397 days provided that the security is a variable or floating rate note that meets the applicable guidelines with respect to maturity. Additionally, securities collateralizing repurchase agreements may have maturities in excess of 397 days.
Investment Process: NYL Investors LLC, the Fund's Subadvisor, seeks to achieve the highest yield relative to minimizing risk while also maintaining liquidity and preserving principal. The Subadvisor selects securities based on an analysis of the creditworthiness of the issuer. The Subadvisor works to add value by emphasizing specific securities and sectors of the money market that appear to be attractively priced based upon historical and current yield spread relationships. The Subadvisor may sell a security prior to maturity if it no longer believes that the security will contribute to meeting the investment objective of the Fund.
MIPXX Holdings
Top 10 holdings of MainStay Money Market Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| U.S. Treasury Bills | 16.31% |
| BofA Securities, Inc. | 14.00% |
| U.S. Treasury Bills | 5.85% |
| Scotia Capital (USA) Inc. | 5.60% |
| U.S. Treasury Bills | 4.91% |
| RBC Capital Markets LLC | 4.52% |
| BMO Capital Markets | 3.73% |
| TD Securities, Inc. | 3.73% |
| Credit Agricole Corporate and Investment Bank | 3.70% |
| BNP Paribas SA | 3.69% |
MIPXX Costs and Fees
MIPXX costs about $47 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.47%
- Gross expense ratio: 0.47%
MIPXX Debt Constituents
No individual debt constituents are reported in MainStay Money Market Fund's latest SEC N-PORT filing.
MIPXX Prospectus and SEC Filings
Official MainStay Money Market Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Money Market funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.