Price Improvement

The Cboe U.S. Equities Exchanges make the following price improvement information publicly available to demonstrate the impact of Cboe's matching engine technology and significant undisplayed liquidity, including true midpoint orders, on the economics of trading.

Each row of data on the files reflects, for a given symbol, the total price improvement, the number of shares, and the average price improvement per share.

File Name Date
price-improvement-20220526.csv May 26, 2022
price-improvement-20220525.csv May 25, 2022
price-improvement-20220524.csv May 24, 2022
price-improvement-20220523.csv May 23, 2022
price-improvement-20220520.csv May 20, 2022
price-improvement-20220519.csv May 19, 2022
price-improvement-20220518.csv May 18, 2022
price-improvement-20220517.csv May 17, 2022
price-improvement-20220516.csv May 16, 2022
price-improvement-20220513.csv May 13, 2022
price-improvement-20220512.csv May 12, 2022
price-improvement-20220511.csv May 11, 2022
price-improvement-20220510.csv May 10, 2022
price-improvement-20220509.csv May 09, 2022
price-improvement-20220506.csv May 06, 2022
price-improvement-20220505.csv May 05, 2022
price-improvement-20220504.csv May 04, 2022
price-improvement-20220503.csv May 03, 2022
price-improvement-20220502.csv May 02, 2022