The U.S. Securities and Exchange Commission (SEC) has extended the review period for Grayscale's Polkadot (DOT) and Convexity Shares' Hedera (HBAR) spot ETF proposals. According to an official announcement on May 24th, the decision on whether to approve the listing and trading of these funds has been pushed back to June 11th. The SEC stated that the extension is necessary to allow sufficient time to thoroughly evaluate proposed rule changes and address any raised concerns. This delay impacts investors eager for more accessible exposure to DOT and HBAR through traditional investment vehicles. Simultaneously, the SEC also extended the review period for Bitwise's Bitcoin and Ethereum (ETH) ETF until June 10th, indicating a cautious approach towards crypto-related investment products. The regulatory body is currently examining numerous applications for cryptocurrency spot ETFs, suggesting a potential shift in attitude despite the ongoing delays. Market participants are closely watching these developments, anticipating eventual approval and wider adoption of crypto ETFs. ```