Stock Market Highlights: Indian indices ended Wednesday's trading session little changed ahead of the options expiry tomorrow. Broader markets ended positively as compared to the benchmarks. Nifty Smallcap100 and Nifty Midcap100 indexes closed 0.41 percent and 0.07 percent higher respectively. Nifty PSU Bank gained the most, ending 2.7 percent higher followed by Nifty Media (2.37 percent) and Nifty Auto (2.03 percent). On the other hand, Nifty Pharma slipped the most, ending 1.55 percent lower.