The folks at everyone's favorite politically connected basket case bank must be feeling left out after seeing a Washington Post piece noting the concentration of the banking industry and only mentioning the big three rather than the big four. As of March 2009, Citigroup had just under $1 trillion in risk adjusted assets according to data reported in the Federal Reserve Board's stress tests. This figure put it about 8 percent behind #3 Wells Fargo, but with more than twice the assets of Goldman Sachs, the fifth largest bank holding company by assets. For this reason, most measures of concentration usually focus on the big four, not just the three largest banks.
--Dean Baker