The US Securities and Exchange Commission (SEC) has extended its review of a Grayscale Solana Trust filing and opened public comment periods on a BlackRock Bitcoin ETF redemption model and a 21Shares Dogecoin ETF.

The agency did not approve or deny the listing of the Grayscale trust, which would hold Solana (SOL) tokens and trade on NYSE Arca, as reported by Benzinga earlier this week.

Instead, the SEC decided to postpone its decision in order to "have sufficient time to evaluate whether the listing meets investor protection standards and promotes market interoperability and efficiency, as required by Section 12(b)(11) of the Exchange Act."

The SEC also extended its review of a Grayscale Litecoin Trust filing and instituted proceedings to further assess whether the listing aligns with requirements under the Securities Exchange Act. Both Solana and Litecoin filings now face extended timelines.

The filing period for both initiative has now closed.

Nasdaq filing for BlackRock iShares

Furthermore, a filing from Nasdaq to amend the BlackRock, Inc. iShares Bitcoin Trust is now open for public comment.

The proposed change would allow the fund, also known by its ticker "BTC", to support in-kind redemptions.

Authorized participants would be able to create or redeem shares of the trust using Bitcoin rather than cash, according to the filing. The SEC approved the fund in January with a cash-only redemption mechanism.

The public comment period will remain open for 14 days from the filing date.

21Shares Dogecoin ETF

Finally, the 21Shares application for a Dogecoin ETF has entered its public comment phase following a filing to list the ETF under Nasdaq Rule 5711(d), which covers commodity-based trust shares.

The ETF, which would trade under the ticker "DOGECO", is being applied for in partnership with crypto firm CoinDesk and would track the price of Dogecoin.

The SEC is also seeking comment on whether the listing of the trust is consistent with the requirements of Section 12(b)(11) of the Exchange Act.

The filing period for both initiative has now closed.