FNMA did not - not - lose that much in its MBS (written) portfolio (and this was confirmed later after they - F and F - showed everyone -- they were far safe than banks) FNMA did lose a ton in its "reserves" --- the cash it kept on hand. FNMA to keep up with the TBTF banks "profits" bought a ton and then more of TBTF paper ---- and it was that paper (not Fannie MBS paper) that hurt them the most