With significant upside potential, MDU Resources Group, Inc. (NYSE:MDU) secures a spot on our list of the 13 Best Diversified Stocks to Buy According to Hedge Funds. Jefferies Upgrades MDU Resources Group, Inc. (MDU) from ‘Hold’ to ‘Buy’, Raises PT to $20 On September 19, 2025, Jefferies upgraded MDU Resources Group, Inc. (NYSE:MDU) from ‘Hold’ to ‘Buy’, raising its price target from$18 to $20. The investment firm cited the company’s attractive valuation and growth potential. Even after factoring poten ...