• Rival European markets Cboe and Aquis develop plans to better cope with listing-market outages
• Eurex plans speed-bump expansion
• UK set to scrap MiFID II's open-access rules
• Sell-side attempts to demystify OTC and SI trading volumes
• US swap venues make Brexit gains
• European retail brokers continue to capitalise on meme stocks
• Exchange body weighs in on market-data cost debate