REX Shares and Tuttle Capital Management launched the T-REX 2X Long ASST Daily Target ETF on Sept. 18, 2026, listing it on Cboe BZX under the ticker ASSX. The fund is the first U.S. exchange-traded fund to offer 2x daily long exposure to Strive, a publicly traded Bitcoin treasury company. ASSX seeks 200% of Strive’s daily share performance before fees and expenses, using derivatives rather than holding Bitcoin or attempting to double Bitcoin’s daily return. It began with $250,000 in assets, 10,000 shares outstanding and a $25 net asset value per share; holdings as of Sept. 17 showed a 199.91% weighting in a swap instrument alongside cash. Leverage resets each trading day, so compounding, derivatives, financing, liquidity and counterparty conditions can cause longer-term results to diverge sharply from twice ASST’s cumulative return. Strive’s latest disclosed holdings total 25,000 BTC after a 469-BTC purchase at an average $77,954 per coin. ASST rose 6.4% to $30.09 during ASSX’s first trading session, while the ETF closed at $28.27. The fund has a 1.5% total expense ratio, with Tuttle as adviser and REX Shares as sponsor.