Goldman Sachs and Morgan Stanley purchased a total of more than $600 million in spot bitcoin exchange-traded funds (ETFs) during the second quarter, regulatory filings showed on Wednesday. The two banks joined a group of hedge funds and financial advisers that have waded into the products, which began trading in January 2024. Goldman Sachs said in its quarterly disclosure to the Securities and Exchange Commission, known as a 13-F filing, that it had acquired about $418 million in several of the recently launched ETFs tied to the price of spot bitcoin.