According to CoinMeta, rex, shares, and osprey funds have updated their sei collateral ETF files with the U.S. Securities and Exchange Commission, setting October 23 as the effective date. rex-osprey, sei + staking, and ETF intend to provide spot sei exposures and participate in collateralization. These related products will be advanced alongside other crypto assets such as NEAR, hype, SUI, AVAX, etc. ETF.