Citigroup's Chief Financial Officer Mark Mason commented that trading and investment banking revenues are expected to decline in third-quarter 2019. Further, the bank now expects net interest income (NII) to rise in the range of 3-4% for 2019, lower than the prior projection of 4% amid more Fed rate cut expectationsand flattening of the yield curve. This is despite the fact that Citigroup is less asset sensitive compared with other big banks. Nevertheless, management expects to achieve a 12% return on tangible common equity ratio target this year.