Morgan Stanley has filed amendments for its spot Ethereum (ETH) and Solana (SOL) exchange-traded funds, signaling progress on both applications that follow its recent bitcoin ETF debut.

On Thursday, the Wall Street bank submitted the amended S-1 registration statement for the applications with the Securities and Exchange Commission. The filings represent the second amendments for both ETH and SOL ETF applications, which were filed in January. 

The latest S-1 filings revealed sponsor fees for the ETFs, both set at 0.14%. This fee rate would be the lowest in both Ethereum and Solana ETF markets in the U.S. 

Currently, Grayscale's Mini Ethereum Trust offers the lowest sponsor fee of 0.15%, while Franklin Templeton's SOEZ has the lowest among Solana ETFs, of 0.19%, according to data from SoSoValue.

The amendments also revealed that Figment Inc., Galaxy Blockchain Infrastructure LLC, and Coinbase Canada, Inc., will serve as staking service providers for the funds. Morgan Stanley's upcoming ETH and SOL ETFs plan to stake a portion of their held assets to generate additional rewards. A 5% staking fee will be allotted to staking service providers and custodians, the filing said.

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The Ethereum fund is expected to trade under ticker symbol MSSE, and the Solana fund under MSOL.

The disclosure of additional amendments to the ETF applications typically reflects active communication with the SEC and progress in the launch process.

Morgan Stanley Bitcoin Trust (MSBT), filed around the same time as the firm's ETH and SOL ETFs, successfully launched in April, benefiting from its 0.14% sponsor fee that undercut established spot bitcoin funds. As of June 18, MSBT has drawn in $300.7 million in cumulative net inflows.