“Financial market stabilization institution.” From the SoFFin acronym, which stands for Sonderfonds Finanzmarktstabilisierung Finanzmarktstabilisierungsanstalt. SoFFin was founded in 2008 to stabilize struggling banks.
Update on 16 Jul 2013: Between 01 Jan and 30 Jun 2013, the German taxpayer-supported SoFFin fund paid out ~18 billion euros in aid, ~17 billion being in the form of Eigenkapitalhilfe [equity assistance? does this translation apply for banks?], which, ZDF heute journal reported, Hypo Real Estate benefitted most from, followed by Commerzbank and WestLB successor Portigon.
(Fee NONTS mark t shtah beel ee zeer oongs ON shtoll t.)