On the call side, there are notable OI concentrations at the 22,500 and 22,900 levels, suggesting these as resistance levels to watch, with the 22,900 level approaching all-time highs.
Stock market today: Sensex closed with a loss of 384 points, or 0.52 per cent, at 73,511.85. The Nifty 50 closed 140 points, or 0.62 per cent, lower at 22,302.50