Arm beat Wall Street's quarterly targets -- so why is its stock crashing?Arm (ARM -16.08%) stock is getting hit hard in Thursday's trading. The semiconductor-specialist's share price was down 16.4% as of 1:15 p.m. ET, according to data from S&P Global Market Intelligence.After the market closed yesterday, Arm published better-than-expected results for the first quarter of its current fiscal year, which ended June 30. But expectations were sky high, and investors didn't see enough bullish indicators in the c ...