1.   Market operators and investment firms operating a trading venue shall make public current bid and offer prices and the depth of trading interests at those prices which are advertised through their systems for shares, depositary receipts, ETFs, certificates and other similar financial instruments traded on a trading venue. That requirement shall also apply to actionable indication of interests. Market operators and investment firms operating a trading venue shall make that information available to the public on a continuous basis during normal trading hours.

2.   The transparency requirements referred to in paragraph 1 shall be calibrated for different types of trading systems including order-book, quote-driven, hybrid and periodic auction trading systems.

3.   Market operators and investment firms operating a trading venue shall give access, on reasonable commercial terms and on a non-discriminatory basis, to the arrangements they employ for making public the information referred to in paragraph 1 to investment firms which are obliged to publish their quotes in shares, depositary receipts, ETFs, certificates and other similar financial instruments pursuant to Article 14.