Jay Thakkar, senior technical analyst at Sharekhan, says Nifty is trading in a narrow range between 8,500 on downside and 8,800 on the upside and traders should go short only if Nifty moves below 8,500 and those who are long should keep stop loss at 8500. Mr Thakkar advises traders to avoid trading the index as long as its stays in this range.