Stocks to buy or sell today: 10 short-term trading ideas by experts for 12 Sept https://ift.tt/N2T1PBo highest new open interest (OI) addition was seen at 18,000 for Calls and 17,000 for Puts in weekly and at 18,000 for Calls and 16,000 for Puts in monthly contracts. Hence, 18,000 will act as a crucial resistance level.