Options LiquidityMatrix September 2018

Year-to-date option volumes remain strong as September volume was up almost 44% compared to the same month last year. For the first nine months of 2018 over 3.6 billion contracts have traded, a rise of 18.7% versus the first nine months of 2017. Market quality also remains strong as the average bid/offer spread remains around 0.23 for the third consecutive month. TABB Group’s monthly Options LiquidityMatrix™ analyzes the 15 US options exchanges, in addition to broader industry trends. Metrics include market share, market quality, average spread, average trade size, and volume breakdown for all options and penny options.