The cryptocurrency market has struggled since the launch of spot Ether (ETH) exchange-traded funds (ETFs) trading in the U.S. on July 23, Citibank said in a research note on Friday. The bank noted that other risk assets have also been weak during this period, but after adjusting for volatility, cryptocurrencies have underperformed since the non-farm payrolls data (NFP) rebounded. Unless there is more transparency about the "soft versus hard landing outcomes" of the U.S. economy, ETF flows are li...