Peabody rises after terminating planned acquisition with Anglo American

** Shares of coal miner Peabody Energy BTU.N up 6.4% at $18.20 premarket

** Company terminates its $3.78 billion bid for Anglo American's AAL.L coking coal mines, citing a "material adverse change" related to the coal assets

** BTU says the decision to terminate the transaction comes nearly five months after an ignition event occurred at Anglo's Moranbah North Mine

** As of last close, shares were down 18.34% YTD