Coinbase US500 futures reached a $104 million matched trading volume in the first week after launching on Aug. 17, according to a chart posted by the company on Aug. 28. The product is a five‑year cash‑settled equity‑index future that uses an hourly funding rate derived from the difference between futures and spot prices, and it trades under a regulated schedule from Sunday at 8 p.m. Eastern Time to Friday at 5 p.m. Eastern Time as outlined in the CFTC filing. The later public page reported $7.22 million in 24‑hour volume and $3.01 million in open interest on Aug. 28, with a funding rate of negative 0.0001% indicating that shorts paid longs. The contract references the MarketVector Top 500 US Profitable Companies Continuous Index, has an expiry on the third Thursday of December 2030, and is cleared through Nodal Clear while adhering to position limits, price limits and circuit breakers. The $104 million figure represents the highest observed volume in the initial period, but sustained trading volume, persistent open interest and adequate liquidity will be needed to confirm the viability of the crypto‑style funding mechanism within a regulated US equity market.