...In our view, Cboe Global Markets maintains a leading position among options exchanges in the U.S. It has a 99% market share in index equity options and an approximately 33% market share overall in the year to date through October (including single-name equity options). We expect the company to remain more dependent than peers on volatile trading revenue. Transaction-related revenue represented about 71% of net revenue for Cboe in the first nine months of 2023--far above the levels for Nasdaq and Intercontinental Exchange. We continue to view Cboe's low leverage as a credit strength. Leverage, as measured by S&P Global Ratings-adjusted debt to EBITDA, improved to 1.2x as of Sept. 30, 2023 after spiking to 1.7x a year ago (due to the partially debt-funded acquisitions of ErisX and Neo). We believe the company benefits from providing three of the most widely recognized financial products traded and used globally: VIX futures, VIX options, and S&P 500 options. Overall index options and futures...