Investors tracking stocks to buy or sell today, February 7, should keep an eye on Zomato (NSE: Zomato), Bharti Airtel (NSE: BhartiArtl), Apollo Tyres (NSE: ApolloTyre), Ramco Cements (NSE: RamcoCem), and Motherson Sumi Wiring (NSE: MSUMI), CNBCTV18 quoted experts as saying.