United States regulators say they need more time to decide if an exchange-traded fund (ETF) designed as a one-stop-shop crypto portfolio can list on Nasdaq’s electronic securities exchange, according to an Aug. 9 regulatory filing. The filing was a response to Nasdaq’s June request for permission to list the Hashdex Nasdaq Crypto Index ETF on its electronic exchange. Related: Nasdaq asks to list options on spot Ethereum ETFs — Filing If approved, the Hashdex Nasdaq Crypto Index ETF would be the first diversified spot crypto ETF to hit the US markets. It would also be the first US ETF to hold a…