U.S. Equities Market Volume Summary

Notional Value Summary
Volume Summary

Matched Volume	Tape A	Tape B	Tape C	Market^*	Today	5 Day

NYSE (P,N,A,C)	1,103,387,385	350,366,160	217,794,510	1,671,548,055	23.55%	23.09%
NASDAQ (B,X,Q)	527,283,710	224,149,382	604,715,819	1,356,148,911	19.10%	19.13%
Cboe (Z,Y,K,J)	586,871,040	287,651,518	322,431,064	1,196,953,622	16.86%	16.44%
IEX (V)	115,739,952	22,346,170	53,424,449	191,510,571	2.70%	2.78%
CHX (M)	8,504,655	11,465,698	10,472,902	30,443,255	0.43%	0.44%
Matched Total	2,341,786,742	895,978,928	1,208,838,744	4,446,604,414	62.64%	61.88%

FINRA &TRF Volume
TRFs (DQ,DN,DB)	1,259,403,167	535,738,545	857,255,518	2,652,397,230	37.36%	38.12%
NASD & TRF Total	1,259,403,167	535,738,545	857,255,518	2,652,397,230	37.36%	38.12%

Total Consolidated Volume
Total	3,601,189,909	1,431,717,473	2,066,094,262	7,099,001,644	100%	100%

Data as of 23:59 15/01/2019.

If using this data in a published report, please cite Cboe Global Markets as the source.

This data display automatically refreshes every minute during trading hours.

"Notional Value", which is also referred to as "Dollar Value Traded", is calculated by multiplying the execution price of each transaction by the total number of shares executed in each transaction. This method of calculating market share, as opposed to simply using the total number of shares that traded hands, can be a better representation of the actual "size" of a market. The larger the Notional Value traded, the more risk that actually changed hands. By way of example, 100 shares of stock ABC at $362 per share is a much larger transaction than 100 shares of stock XYZ at $2.20 a share. Other assets classes, such as futures and options, and most other equity markets outside of the U.S., historically have used Notional Value as an index into how much activity takes place on those markets. Cboe is the first to offer a real-time view, market-wide, into Notional Value traded in the U.S. cash equity markets.