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TODAY'S CHARTS: E*Trade's bitcoin play; Finish Line surges; Bed Bath & Beyond tumbles

Bed Bath & Beyond (BBBY) shares tumbled after the home-goods retailer posted a 52% drop in earnings and a slight dip in same-store sales.

Shares of Finish Line (FINL) surged as the athletic wear retailer reported beats on earnings, revenue and same-store sales.

Allegiant (ALGT) shares are slightly higher on an upgrade to buy at Deutsche Bank, with analysts citing a strong position for the entire airline industry in 2018, in part due to gains from tax cuts and increasing demand.

Discovery Communications (DISC) shares gained 4% on a Bank of America Merrill Lynch upgrade to buy. Analysts noted positives from deleveraging, asset sales, and buybacks as its Scripps Networks (SNI) deal nears a close.

Shares of Biogen (BIIB) took a hit after its experimental Alzheimer’s drug failed a 12-month analysis. The drugmaker said the study will continue to the 18-month mark.

E*Trade (ETFC) shares are pushing higher as it jumps on the bitcoin bandwagon. The brokerage house announced it will let its futures customers trade Cboe bitcoin futures, joining the likes of TD Ameritrade, TradeStation and other brokers.

And the magic of the blockchain is sprinkling its digital pixie dust on Long Island Iced Tea Corp (LTEA), with shares up 200%. The beverage company-now-blockchain venture is one of the latest to add the word “blockchain” to its description and trigger a price surge. The company said it is still planning to make iced tea and juice beverages.