Group 1 - Ramaco Resources (NASDAQ:METC) experienced a significant increase of 20.4%, reaching an all-time high of $31.59 during Thursday's trading session [4] - Jefferies has maintained a Buy rating for Ramaco Resources and raised its stock price target to a new Wall Street-high of $45, up from the previous target of $27 [4] - The firm highlighted the "massive value potential" associated with the scale-up of its Brook project [4]