Stock Market Live Updates: The Nifty 50 index is set to begin the monthly F&O expiry session tracking another round of selling on Wall Street, putting IT stocks in the spotlight yet again. The index remains locked in a 500-point range and it remains to be seen whether it can see a directional move in either direction. On the downside, 25,600 and last Friday’s close of 25,571 are important levels, with 25,500 being the psychological support. Watch this space for all the LIVE stock market updates.