Citigroup Stands to Win From Mexico Trade Deal Investors have seen Citigroup’s international exposure as a negative this year. Photo: Callaghan O’Hare Citigroup (ticker: C), owner of the second-largest bank in Mexico, stands to gain from the U.S.-Mexico trade accord that President Donald Trump announced Monday. The stock closed up $1.72, or 2.4%, at $72.39, leading a strong banking sector. The group was up about 1%, as measured by the KBW index of 24 bank stocks. Wells Fargo Securities analyst Mike Mayo wrote in a client note . . .