The Luxembourg Commission de Surveillance du Secteur Financier (CSSF) published its monthly statistics for undertakings for collective investment, showing total net assets of Luxembourg UCIs, specialised investment funds and SICARs reached EUR 5,765.403bn at 31 May 2025, up from EUR 5,618.885bn at end-April. The EUR 146.518bn monthly increase reflected modest positive net capital investment of EUR 2.104bn and a positive financial market impact of EUR 144.414bn. The number of UCIs declined to 3,107 from 3,112, comprising 2,059 umbrella vehicles with 12,380 sub-funds and 1,048 traditional structures, for a total of 13,428 active fund units. The CSSF linked May’s market gains to stronger risk sentiment amid easing US-China tariff tensions, with broad equity advances led by US equities (+7.39%) and generally positive fixed income returns except for USD-denominated bonds (-0.02%); net flows diverged, with overall fixed income net redemptions driven by money market outflows (EUR money market -3.30% and USD money market -1.87% of net assets) while categories such as High Yield bonds combined positive performance (+1.52%) with inflows (+0.92%). Six UCIs were registered on the official list and eleven were deregistered during the month.