REX Shares and Osprey Funds have updated their SEI staking ETF filing with the U.S. Securities and Exchange Commission, establishing October 23 as the effective date. The proposed fund aims to provide spot exposure to SEI while supporting staking yield for investors. This update follows similar ETF filings previously submitted by the issuers for other crypto assets, including NEAR, HYPE, SUI, and AVAX. Sei Network confirmed the filing amendment via X on September 28.