** Citigroup C.N stock slipping 0.4% on Tues as banking head Vis Raghavan forecasts higher banking fees despite U.S. tariff concerns

** Raghavan expects banking fees to rise mid-single digits and markets rev to increase mid-to-high single digits in Q2

** Citi advised on major deals, including Mars' $35.9 bln acquisition of Kellanova and Charter's $21.9 bln merger with Cox

** Co's stock up 11% YTD, outperforming S&P 500's .SPX 2% rise

(Reporting by Noel Randewich)

((noel.randewich@thomsonreuters.com))