The Luxembourg Commission de Surveillance du Secteur Financier published end-December 2025 statistics for Luxembourg undertakings for collective investment (UCIs) under the 2010 Law, specialised investment funds and SICARs, showing total net assets of EUR 6,199.370 billion, up 0.32% from end-November and 6.52% over 12 months. The EUR 19.490 billion monthly increase combined net capital investment of EUR 30.047 billion (0.49%) with a negative financial market impact of EUR 10.557 billion (-0.17%). The population covered totalled 3,036 UCIs (down from 3,045), including 2,034 umbrella structures representing 12,317 sub-funds, with 13,319 fund units active when combined with 1,002 standalone UCIs. In its market commentary, the CSSF cited a third consecutive US Federal Reserve rate cut during December and the European Central Bank keeping rates unchanged for a fourth time; equity UCIs saw net inflows in most categories, while outflows were concentrated in Eastern European, Asian and Japanese equities. Fixed income UCIs also recorded overall net inflows, with the global money market category the exception, while non-money-market fixed income categories posted negative monthly returns. During the month, 11 UCIs were added to the official list (five UCITS under Part I of the 2010 Law and six Part II UCIs) and 20 were removed (five Part I UCITS, one Part II UCI, 10 specialised investment funds and four SICARs).