PANews reported on August 20 that according to The Block, sources revealed that the U.S. Securities and Exchange Commission (SEC) rejected two Solana spot ETF 19b-4 applications submitted by Cboe BZX. As a result, these applications have been withdrawn from the Cboe website. The 19b-4 application is submitted by the trading platform (Cboe in this case) on behalf of the issuer. If it is published in the Federal Register, it will initiate the SEC's approval process. Another important form is the S-1 registration statement, which is submitted by the issuer without any deadline. However, because the SEC rejected the 19b-4 forms, these forms have never been published in the Federal Register, and therefore no potential approval or rejection process has been initiated.

Earlier news reported that the 19b-4 forms of VanEck and 21Shares Solana ETFs were suspected to be deleted from the CBOE website; people familiar with the matter said that the SEC had held talks with the ETF issuers before this.