Benzinga's Top #PreMarket Losers

Arena Pharmaceuticals ARNA dipped 7.53% to $4.05 in the pre-market session. Arena is expected to report its Q3 financial results on November 7, 2013. American International Group AIG shares dropped 4.94% to $49.10 in pre-market trading after the company reported a 17% rise in its third-quarter net income. Western Digital WDC shares fell 2.11% to $68.16 in the pre-market trading after the company priced its secondary offering of 10,869,566 shares by selling share holder Hitachi at $67.00 a share. Ryanair Holdings plc RYAAY dipped 1.71% to $49.35. Ryanair shares have jumped 54.49% over the past 52 weeks, while the S&P 500 index has gained 24.21% in the same period.