According to a filing on Wednesday, the U.S. Securities and Exchange Commission (SEC) postponed decisions on the Bitwise Bitcoin ETF trust fund and the Bitwise Ethereum ETF physical redemption mechanism, the Internet reported. This is the latest sign that U.S. regulators are still exercising restraint despite the improving political environment for cryptocurrencies. The documents show that the SEC will make a ruling by September 8, when it may approve or reject the application, or choose to review the matter further. "The committee believes that it is necessary to assign a longer period of time to act on proposed rule changes to allow sufficient time to review the proposed changes and the issues raised therein," the document read. The so-called physical redemption means that investors can directly exchange ETF shares for the underlying tokens held by the fund, thereby avoiding certain tax burdens. The mechanism has been a sensitive topic, with regulators expressing concerns about its complexity and security, and ETF issuers eager to provide the same features as traditional non-crypto ETFs.