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# Recital 15

*In force · Regulation (EU) No 600/2014, OJ L 173, 12.6.2014 · Checked against EUR-Lex on 1 Nov 2026 · [Official source](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32014R0600)*

It is necessary to introduce an appropriate level of trade transparency in markets for bonds, structured finance products and derivatives in order to help the valuation of products as well as the efficiency of price formation. Structured finance products should, in particular, include asset backed securities as defined in Article 2(5) of Commission Regulation (EC) No 809/2004, comprising among others collateralised debt obligations.