An earnings beat and optimism over a more equal playing field for browsers spurred a rally. Shares of web browser company Opera (OPRA 9.51%) were rallying this week, up 23.3% through 11:25 a.m. ET Friday, according to data from S&P Global Market Intelligence. Opera delivered great news for shareholders this week, reporting strong second-quarter earnings that came in ahead of analyst expectations. In addition, commentary on the positive potential impact from recent regulations in Europe and the U.S. may have ...