JPMorgan Chase & Co. boosted its holdings in iShares MBS ETF (NASDAQ:MBB – Free Report) by 6.9% during the second quarter, according to its most recent Form 13F filing with the SEC. The fund owned 24,566,215 shares of the company’s stock after acquiring an additional 1,585,622 shares during the period. JPMorgan Chase & Co. owned […]