The Nifty futures closed at 6123.70 on Friday, up 75.25 points from the previous day's close of 6,096.20. Trading volumes were up across various derivative segments like index futures, stock futures, index options and stock options. Open interest on Nifty October futures increased by 0.97 million units to 17.83 million units. Key stock futures like DLF, Tata Motors and Yes Bank traded at premiums to their underlying cash prices, while Ranbaxy traded at a premium of 3.45 points. Overall, the sentiment indicators like put-call ratios on Nifty and Bank Nifty options were at 1.3 and 1.04 respectively.