Solana ETF issuers Bitwise, Canary, and Grayscale have revised their S-1 filings as directed by the U.S. Securities and Exchange Commission (SEC) to allow staking rewards and passive income through trust custody accounts. The revised filings from Bitwise and Canary confirm that Solana will be held in designated "trust staking accounts," permitting staking to earn rewards, which may be paid to the trust in the form of Solana tokens or cash, thereby increasing the fund's net asset value. Grayscale's revision also allows staking but under specific conditions and introduces a new 2.5% management fee. This move marks a shift in the structure of spot cryptocurrency ETFs, beginning to include yield-generating features like staking, attracting investors who seek Solana staking rewards through regulated funds. If approved, these ETFs would become the first in the U.S. to incorporate staking functionalities.