The Bombay Stock Exchange benchmark Sensex was trading in red in the afternoon trade today.The Sensex was at 16639, down by 111points when reports last came in.It fell by 185 points in early trade . Analysts say the fall in sensex is due to profit booking by funds and retail investors amid weak global cues.Major losers were Infosys Tech which , Wipro , RIL , Reliance Infra , State Bank of India , ICICI Bank , Jaiprakash Associates , DLF Ltd .The US Dow Jones Industrial Average ended 0.83 per cent down in yesterday's trade, while Hong Kong's Hang Seng index was down 2.60 per cent in morning trade today.