was managing partner and portfolio manager at arjuna capital, natasha lamb.rug maker has from --.ed this is because it is said to explore a sale, according to people familiar with the metal. -- the matter. you can see the big lead higher here in the sorrow -- tesaro's share. it is said to explore a potential sale. on any keep you posted further developments. this is bloomberg. ♪ s is bloomberg. ♪ a check ont's get the latest business flash headlines, starting with a painting by david hockney, setting a record at auction for living artist. for more thanent $90 million at christie's in new york last night. the previous record was $58 million for a painting by jeff kuhn. thattors are concerned the nintendo switch consul might have disappointing holiday sales. shares of the electronics company fell more than 9% in tokyo today. this which became one of the fastest selling consuls in history after the release last year area but the supplier of the key chip for the device -- nvidia -- just gave a down beat revenue forecast for the quarter. and viacom posted fiscal f