{
  "url": "https://openlegislation.uk/eu-regulation-2017-580/article-6",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-580/article-6.json",
  "legislation": "eur/2017/580",
  "legislation_title": "Commission Delegated Regulation (EU) 2017/580 of 24 June 2016 supplementing Regulation (EU) No 600/2014 of the European Parliament and of the Council with regard to regulatory technical standards for the maintenance of relevant data relating to orders in financial instruments (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-580",
  "path": "article/6",
  "kind": "article",
  "number": "6",
  "heading": "Priority and sequence numbers",
  "text": "1. Operators of trading venues which operate trading systems on a price visibility-time priority shall maintain a record of the priority time stamp for all orders as specified in field 13 of Table 2 of the Annex. The priority time stamp shall be maintained with the same level of accuracy specified by Article 4(1).\n2. Operators of trading venues which operate trading systems on a size-time priority basis shall maintain a record of the quantities which determine the priority of orders as specified in field 14 of Table 2 of the Annex as well as the priority time stamp referred to in paragraph 1.\n3. Operators of trading venues which use a combination of price-visibility-time priority and size-time priority and display orders on their order book in time priority shall comply with paragraph 1.\n4. Operators of trading venues which use a combination of price-visibility-time priority and size-time priority and displays orders on its order book in size-time priority shall comply with paragraph 2.\n5. Operators of trading venues shall assign and maintain a sequence number for all events as specified in field 15 of Table 2 of the Annex.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/580/article/6",
    "retrieved_at": "2026-11-01T14:45:05.391449+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}