Tech View: Nifty forms long red candle on daily chart. What traders should do on Friday

The short-term trend of Nifty seems to have turned down and one may expect some more weakness in the short term. The near-term uptrend of the market remains intact and further weakness down to the immediate support of 21,550-21,500 levels could be a buying opportunity, said Nagaraj Shetti of HDFC Securities.