Cboe BYX U.S. Equities Exchange 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-20190516.csv May 16, 2019
price-improvement-20190515.csv May 15, 2019
price-improvement-20190514.csv May 14, 2019
price-improvement-20190513.csv May 13, 2019
price-improvement-20190510.csv May 10, 2019
price-improvement-20190509.csv May 09, 2019
price-improvement-20190508.csv May 08, 2019
price-improvement-20190507.csv May 07, 2019
price-improvement-20190506.csv May 06, 2019
price-improvement-20190503.csv May 03, 2019
price-improvement-20190502.csv May 02, 2019
price-improvement-20190501.csv May 01, 2019