In Regulation 2017/2401 point (9) is mentioned that: “Lower capital requirements applicable to STS securitisations should be limited to securitisations where the ownership of the underlying exposures is transferred to a securitisation special purpose entity or SSPE (‘traditional securitisations’). However, institutions retaining senior positions in synthetic securitisations backed by an underlying pool of loans to small and medium-size enterprises (‘SMEs’) should also be allowed to apply to these positions the lower capital requirements available for STS securitisations where such transactions are regarded as of high quality in accordance with certain strict criteria, including on the eligible investors. In particular, such subset of synthetic securitisations should benefit from the guarantee or counterguarantee either by the central government or central bank of a Member State or a promotional entity, or by an institutional investor provided that the guarantee or counterguarantee provided by the latter is fully collateralised by cash on deposit with the originator institutions. The preferential regulatory capital treatment for STS securitisations that would be available to those transactions under Regulation (EU) No 575/2013 is without prejudice to compliance with the Union State aid framework, as set out in Directive 2014/59/EU of the European Parliament and of the Council ( 2 ).”.

Consequently, it seems that a synthetic securitization no ABCP could be considered STS if the conditions established in Regulation 2017/2401 point (9) and Regulation 2017/2402 articles 20,21 and 22 are satisfied.