According to data from the US Ether and Bitcoin ETFs monitored on 31 July:
Nine U.S. ethereum ETFs saw a total net outflow of 15,691 ETH, or approximately $51.94 million, of which 63,612 ETH, or approximately $210.56 million, were greyed out, leaving current grey holdings at 2,107,764 ETH, or approximately $6.98 billion;
The nine U.S. Bitcoin ETFs had a total net outflow of 26,823 BTC, or approximately $1.77 billion, of which 27,753 BTC, or approximately $1.84 billion, were greyed out, leaving current grey holdings at 242,413 BTC, or approximately $16.03 billion.