Cryptocurrency ether plunges again, decoupling from bitcoin By: CNBC.com News September 12, 2018 at 12:16 PM EDT Ether, one of the best-performing cryptocurrencies during the boom last year, is nose-diving again Wednesday. Read More >> Related Stocks: Banco DE Chile ADR Bitcoin (Bitstamp) Bitcoin Composite Eaton Vance Enhanced Equity Income Fund II Ethan Allen Interiors Inc