 Telefonaktiebolaget LM Ericsson NASDAQ:ERIC saw some unusual options trading activity on Tuesday. Traders bought 5,843 call options on the company. This is an increase of 70 compared to the average daily volume of 3,437 call options. Hedge funds have recently modified their holdings of the stock. Cornerstone Advisors Inc. lifted its position in Telefonaktiebolaget LM ... 