Motilal Oswal Mutual Fund has recently announced a new ETF—the Motilal Oswal Nifty 500 Momentum 50 ETF. This fund will track the Nifty 500 Momentum 50 Index, which picks out the top 50 stocks from the Nifty 500 based on their recent price performance. If you’re into momentum investing, where the idea is to “buy …