Benzinga's Top Pre-Market Losers

Williams Companies Inc (The) (NYSE: WMB) shares fell 16.44% to $27.59 in the pre-market trading. WMB's trailing-twelve-month ROA is 4.93%.

Altria Group Inc (NYSE: MO) dipped 1.52% to $29.20 in the pre-market session. Altria Group launched a website called Citizens for Tobacco Rights.

Key Technology Inc (NASDAQ: KTEC) dipped 0.84% to $12.94 in the pre-market session. KTEC's trailing-twelve-month profit margin is 1.25%.

Vodafone Group Plc (NASDAQ: VOD) moved down 0.14% to $27.99 in the pre-market session. Vodafone's PEG ratio is 1.24.