Short build up is seen in the Nifty Futures, where Open interest rose by 17 per cent along with price fall of 1 per cent, said Nandish Shah, technical research analyst at HDFC Securities.Short build up is seen in the Nifty Futures, where Open interest rose by 17 per cent along with price fall of 1 per cent, said Nandish Shah, technical research analyst at HDFC Securities. Latest News [ SOBAN NEWS: International and National ]