Major US banks Morgan Stanley (NYSE: $MS) and JPMorgan (NYSE: $JPM) increased their holdings of cryptoinvestment products in the second quarter, adding to their exposure to Bitcoin (CRYPTO: $BTC) and Ethereum (CRYPTO: $ETH) ETFs despite market volatility during the period.

Morgan Stanley increased its holdings of BlackRock’s iShares Bitcoin Trust ETF (IBIT) by 23% from the previous quarter. The investment bank held about 16.5 million IBIT shares at the end of June, up from 13.4 million three months earlier, according to a Form 13F filing submitted to the US Securities and Exchange Commission on Thursday.

Despite the larger position, its reported value fell to about $549 million from $667 million as Bitcoin…