JPMorgan U.S. Treasury Plus Money Market Fund Premier Shares (PJTXX) is a money market mutual fund managed by J.P. Morgan Asset Management that seeks current income while maintaining liquidity and stability of principal. The fund invests exclusively in U.S. Treasury bills, notes and other obligations issued or guaranteed by the U.S. Treasury, as well as repurchase agreements fully collateralized by such obligations; it complies with SEC Rule 2a-7 under the Investment Company Act of 1940 governing money market funds. Designed primarily for institutional investors, the fund targets temporary or medium-term cash investments, seasonal operating cash needs, automated cash sweeps and liquidity components of investment portfolios, with a minimum investment of $1 million, an expense ratio of 0.42% to 0.43%, assets under management exceeding $58 billion across share classes and top holdings including repurchase agreements with entities such as Fixed Income Clearing Corporation and Citigroup Global Markets alongside direct U.S. Treasury securities. The Premier share class (CUSIP 4812C2 718), which holds ticker PJTXX, was incepted on February 19, 2005, within the broader fund established in 1985 and headquartered in Columbus, Ohio as part of JPMorgan Trust II under J.P. Morgan Funds; it operates globally but focuses on U.S. dollar-denominated instruments for institutional clients including corporations, financial institutions and investment advisors. In a recent strategic expansion, J.P. Morgan Asset Management launched the JPMorgan 100% U.S. Treasury Securities Money Market ETF (JMMF) on December 11, 2025, on NYSE Arca, extending the firm's Treasury-focused liquidity strategy into an ETF format with weekly income distributions, 16 basis points expense ratio and management by a team averaging 22 years of experience, complementing traditional money market funds like PJTXX for investors seeking enhanced trading flexibility and transparency. The fund maintains high ratings including AAAm from S&P and Aaa-mf from Moody's, daily liquid assets around 88% and weekly liquid assets near 96%, with a weighted average maturity of approximately 43-52 days and a 7-day SEC yield of 3.78% as of late October 2025.