ClearShares Ultra-Short Maturity ETF (OPER) is an actively managed exchange-traded fund that seeks current income consistent with capital preservation by investing primarily in repurchase agreements collateralized by U.S. government securities, U.S. Treasuries, U.S. government agency securities, mortgage-backed securities, and other high-quality fixed income instruments; it maintains a dollar-weighted average maturity of one year or less and does not seek to maintain a stable net asset value of $1.00 per share. The fund offers daily liquidity and pricing on the NYSE Arca exchange, with monthly distributions, a net expense ratio of 0.20%, and benchmarks performance against the ICE BofA U.S. Broad Market Index. Launched on July 10, 2018, and advised by ClearShares LLC with co-management by Piton Investment Management, LP, the ETF is distributed by Quasar Distributors, LLC and targets investors seeking higher yields on cash equivalents, including high-net-worth individuals, small- to mid-sized corporations, and institutions. Headquartered in the United States and domiciled there, it operates in the ultrashort bond segment of the fixed income market with net assets of approximately $107.8 million as of November 2025. In recent developments, the fund continues regular monthly distributions, with the latest at $0.38 per share as of October 31, 2025, reflecting yields around 4.20% amid prevailing short-term rates, and portfolio managers Jim Fortescue and Frank Codey maintain active oversight with top holdings in short-term repo agreements maturing in late November 2025.