https://www.cboe.com/insights/posts/xsp-more-potential-benefits-than-spy/

https://ir.cboe.com/news-and-events/2023/05-11-2023/cboe-global-markets-declares-second-quarter-2023-dividend

https://www.cboe.com/insights/posts/opportunity-knocks-industry-collaboration-on-new-ideas-with-cboe-labs/

https://ir.cboe.com/news-and-events/2023/05-05-2023/cboe-global-markets-reports-record-results-first-quarter-2023

https://www.cmegroup.com/media-room/press-releases/2023/5/04/cme_group_declaresquarterlydividend.html

https://ir.cboe.com/news-and-events/2023/05-03-2023/cboe-global-markets-reports-trading-volume-april-2023

https://www.cmegroup.com/media-room/press-releases/2023/5/02/cme_group_reportsapril2023monthlymarketstatistics.html

https://www.cboe.com/insights/posts/ed-tilly-on-cboes-milestone-anniversary/

https://www.cmegroup.com/media-room/press-releases/2023/4/26/cme_group_inc_reportsfirst-quarter2023financialresults.html

https://www.bnnbloomberg.ca/fear-gauge-owner-plans-more-market-tools-after-one-day-vix-1.1911962

https://ir.cboe.com/news-and-events/2023/04-24-2023/cboe-global-markets-launches-1-day-volatility-index-designed-measure-volatility-over-current-trading-day

https://www.cmegroup.com/media-room/press-releases/2023/4/24/cme_group_completeskeymilestonesinconversionofeurodollarfutureso.html