币界网报道：Coinbase has expanded its trading options by adding support for Cardano (ADA) and Litecoin (LTC) perpetual futures contracts on its international exchange, alongside Ethereum layer-2 network Arbitrum (ARB). The move aims to attract more institutional and retail traders by offering leveraged trading opportunities. Meanwhile, Ripple's XRP remains in focus as the SEC's lawsuit against the company continues, with the court recently denying the SEC's motion to appeal an earlier ruling that deemed XRP not a security. Analysts suggest this could set a precedent for other crypto assets facing regulatory scrutiny. Additionally, Ethereum's layer-2 ecosystem is gaining traction, with Arbitrum seeing increased adoption due to its scalability solutions. Market participants are closely watching these developments, as they could influence broader crypto market trends and regulatory clarity in the coming months.