The Luxembourg Commission de Surveillance du Secteur Financier (CSSF) has updated its FAQ on the Luxembourg Law of 17 December 2010 relating to undertakings for collective investment, revising guidance on UCITS ETF portfolio transparency and on the conditions under which UCITS may hold ancillary liquid assets. On UCITS ETFs, the amended guidance applies to all UCITS ETFs and not only actively managed UCITS ETFs. In addition to the daily portfolio information typically provided to market makers and authorised participants, investment fund managers must publish detailed portfolio holdings to all investors at least quarterly, with a maximum publication lag of 30 business days, replacing the previously applicable monthly frequency. On ancillary liquid assets, the CSSF clarifies that, solely for processing subscriptions or redemptions, UCITS may also hold e-money tokens as defined in Article 3(1)(7) of MiCAR, provided these are converted to bank deposits at sight or invested in eligible assets as soon as practicable.