TECK - U.S. Well Services lead energy gainers; Exterran ZK International among major losers
Gainers: U.S. Well Services (USWS) +7%.Losers: Exterran (EXTN) -11%, ZK International Group (ZKIN) -9%, Alcoa (AA) -9%, Teck Resources (TECK) -8%, Century Aluminum (CENX) -8%.
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U.S. Well Services lead energy gainers; Exterran, ZK International among major losers