CBNA does not trade independently on public stock exchanges because it is a privately held national banking subsidiary operating entirely under its corporate parent, Citigroup Inc., which is publicly listed on the New York Stock Exchange under the ticker symbol C. Investors wishing to gain equity exposure to Citibank's operations purchase shares of Citigroup, whose stock valuation fluctuates continuously based on quarterly earnings reports, macroeconomic conditions, global banking sector health, and investor sentiment.