ProFunds UltraNASDAQ-100 Fund Investor Class (UOPIX) is a leveraged mutual fund that seeks daily investment results, before fees and expenses, corresponding to two times (2x) the daily performance of the Nasdaq-100 Index, which comprises 100 of the largest domestic and international non-financial companies listed on the Nasdaq Stock Market based on market capitalization; the fund achieves its objective through investments in financial instruments including derivatives such as swap agreements, futures contracts, and exchange-traded funds tracking the index, along with related securities like receive and pay agreements on Nasdaq-100 swaps and holdings in U.S. Treasuries or repurchase agreements for collateral. Investor Class shares trade under the ticker UOPIX with CUSIP 743185860, while Service Class shares trade under UOPSX; the fund maintains a net expense ratio of 1.53%, a minimum initial investment of $15,000 for individuals, and is non-diversified with total net assets exceeding $1.17 billion as of recent data. Launched on December 1, 1997, and managed by ProFund Advisors LLC headquartered in Columbus, Ohio—a provider of alternative mutual funds founded in 1997 offering leveraged, inverse, and index-based products primarily to U.S. investors—the fund operates within the trading-leveraged equity category and is available for sale in the United States. Recent developments include a contractual fee waiver effective December 1, 2024, through November 30, 2025, which maintains the net expense ratio at 1.53%; ongoing portfolio adjustments reflecting top holdings such as receive and payable swaps on Nasdaq-100 with Goldman Sachs and UBS as of early 2025; and strong performance with 1-year returns around 32% and 5-year annualized returns of approximately 22% as of late 2025, positioning it in the top quartile of its peers amid heightened volatility in leveraged strategies.