ARCXX — Prime Money Market Fund
Data updated: 2026-07-29
ARCXX — Prime Money Market Fund. Money Market · 1.32% expense ratio. Holdings, fees, performance and SEC filings.
ARCXX Fund Overview
ARCXX — Prime Money Market Fund is a US mutual fund managed by American Century Investment Trust, 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: American Century Investment Trust
- Category: Money Market
- Ticker: ARCXX
- SEC CIK: 0000908406
- SEC series ID: S000006583
- Share class ID: C000017980
ARCXX Investment Objective and Strategy
Prime Money Market Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by American Century Investment Trust.
Investment objective
The fund seeks to earn the highest level of current income while preserving the value of your investment.
Principal investment strategy
The fund invests most of its assets in high-quality, very short-term debt securities issued by corporations, banks and federal, state and local governments. Under normal market conditions, 25% or more of the funds assets are invested in obligations of issuers in the financial services industry. The debt securities in which the fund invests may include municipal securities and variable-rate securities. A municipal security is a taxable or tax-exempt debt obligation issued by or on behalf of a state, its political subdivisions, agencies or instrumentalities, the District of Columbia or a U.S. territory or possession. A variable-rate security is a debt obligation that provides for specified periodic interest rate adjustments based on changes in some index, such as the London Interbank Offered Rate (LIBOR).
The fund may invest in securities issued or guaranteed by the U.S. Treasury and certain U.S. government agencies or instrumentalities such as the Government National Mortgage Association (Ginnie Mae). Ginnie Mae is supported by the full faith and credit of the U.S. government. Securities issued or guaranteed by other U.S. government agencies or instrumentalities, such as the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), and the Federal Home Loan Bank (FHLB) are not guaranteed by the U.S. Treasury or supported by the full faith and credit of the U.S. government. However, they are authorized to borrow from the U.S. Treasury to meet their obligations. To determine whether to buy or sell a security, the portfolio managers consider, among other things, various fund requirements and standards, along with economic conditions, alternative investments and interest rates.
Because high-quality debt securities are among the safest securities available, the interest they pay is among the lowest for income-paying securities. Accordingly, the yield on this fund will likely be lower than the yield on funds that invest in longer-term or lower-quality securities.
ARCXX Holdings
Top 10 holdings of Prime Money Market Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| U.S. Treasury Note | 4.44% |
| Portsea Funding LLC | 4.05% |
| U.S. Treasury Note | 2.88% |
| Taxable Municipal Funding Trust | 2.14% |
| Hqla Funding LLC | 2.12% |
| U.S. Treasury Note | 2.11% |
| Deutsche Bank Spears/Lifers Trust | 2.07% |
| Podium Funding Trust | 1.93% |
| Invesco Senior Income Trust | 1.93% |
| Royal Bank of Canada | 1.93% |
ARCXX Costs and Fees
ARCXX costs about $132 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.32%
- Gross expense ratio: 1.32%
ARCXX Debt Constituents
No individual debt constituents are reported in Prime Money Market Fund's latest SEC N-PORT filing.
ARCXX Prospectus and SEC Filings
Official Prime 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.