According to Jinse Finance, Katalin Tischhauser, Head of Investment Research at Sygnum Bank, said in an interview that the possibility of launching spot ETFs for Solana, Cardano, and other encryption assets in the United States is low. Even if they are launched, it may be difficult to attract investors for the following two reasons: 1. The U.S. SEC requires approved ETFs to have a trading platform that can be monitored for market surveillance, but AltCoins like Solana lack such platforms, making it difficult for the SEC to ensure fair, transparent, and non-manipulative markets; 2. Compared to BTC and Ethereum, there is less demand from investors for ETFs of AltCoins like Solana. This can be seen by comparing the Assets Under Management of Grayscale's Solana Trust (GSOL) and Ethereum Trust (ETHE), where GSOL's assets are only 1.2% of ETHE, indicating limited investor interest.