Background: The U.S. Securities and Exchange Commission (SEC) may approve multiple cryptocurrency-related exchange-traded funds (ETFs) in July, ushering in a "Altcoin ETF Summer." Main Events: Analysts predict that the SEC could approve ETFs tracking Solana, Ethereum staking, and crypto indices as early as next month. Several fund issuers, such as Grayscale and Bitwise, have submitted relevant applications, with the SEC required to make decisions by July 2, and the approval probability reaching up to 90%. Additionally, the SEC is considering ETFs tracking XRP, Solana, and staking-related products, with decisions expected slightly later. Industry Developments: Duncan Moir, President of 21Shares, stated that as more asset managers enter the market, basket products will become a trend due to their ability to diversify risk and attract investor interest. The SEC is also in communication with Solana ETF issuers regarding staking details. Potential Impact: Nate Geraci, President of ETF Store, believes the SEC's imminent relaxation of crypto ETF approvals will drive mainstream brokerages to offer direct spot crypto trading. Analysts also predict that actively traded crypto ETFs will emerge in the future, with meme coin-focused funds possibly launching by 2026.