--- title: "Article 17a — Tick sizes" type: regulation legal_status: in_force source: "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02014R0600-20251123" source_retrieved: 2026-09-30 shortTitle: "Article 17a — Tick sizes" instrument_type: level1_regulation authority: Commission binding: true binding_character: binding mica_level2: false legal_basis: "Regulation (EU) No 600/2014" instrument: mifir celex: "32014R0600" regulation: MiFIR regulation-full: "Regulation (EU) No 600/2014" article: 17a status: in_force object_id: eu.mifir.legal_text.article.17a text_version: "Consolidated version of 23 November 2025" source_url: "https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02014R0600-20251123" check_status: matched verified: true last_checked: 2026-10-26 --- *In force · Consolidated version of 23 November 2025 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02014R0600-20251123)* 1. Systematic internalisers’ quotes, price improvements on those quotes and execution prices shall comply with the tick sizes set in accordance with Article 49 of Directive 2014/65/EU. 2. The requirements laid down in [Article 15(2)](15.md) of this Regulation and in Article 49 of Directive 2014/65/EU shall not prevent systematic internalisers from matching orders at midpoint within the current bid and offer prices. *** [Title III — Transparency for systematic internalisers and investment firms trading OTC and tick size regime for systematic internalisers](../titles/iii.md) · [← Article 17](17.md) · [Article 18 →](18.md)