1. Investment firms which, either on own account or on behalf of clients, conclude transactions in bonds, structured finance products and emission allowances traded on a trading venue or OTC derivatives as referred to in Article 8a(2), shall make public the volume and price of those transactions and the time at which they were concluded. That information shall be made public through an APA.

2. Each individual transaction shall be made public once through a single APA.

3. The information which is made public in accordance with paragraph 1 and the time-limits within which it is published shall comply with the requirements adopted pursuant to Article 10, including the regulatory technical standards adopted pursuant to Article 11(4), points (a) and (b), and Article 11a(3), points (a) and (b).

4. With regard to bonds, structured finance products and emission allowances traded on a trading venue, investment firms may defer the publication of the price or volume on the same conditions as laid down in Article 11.