IEX Announces: Statistics of Interest
IEX Trading Alert #2013 - 003
Please Route To: Trading
What you need to know:
- IEX published its first set of metrics on our website
What statistics are being disclosed?
IEX will be using the SEC Market Structure Division’s ATS statistics as a benchmark for key performance metrics of the IEX ATS as compared to other ATS's (see: SEC October White Paper on ATS's).
Below are key statistics of interest from our first week of trading:
| IEX | Five Largest ATS1 | All Venues1 | |
|---|---|---|---|
| Average Order Size | 1403 | 364 | 374 |
| Average Aggregate Fill Size | 382 | 219 | 232 |
| IEX | Quartile 1 ATS2 | Median ATS2 | |
|---|---|---|---|
| % of Fills: 100 Shares | 61.10% | 63.77% | 67.17% |
| % of Fills: 5,000 - 9,999 shares | 0.55% | 0.11% | 0.18% |
| % of Fills: >= 10,000 shares | 0.48% | 0.06% | 0.08% |
When will you disclose other metrics?
IEX will begin publishing aggregate volume and trading statistics once a wider breadth of trading subscribers have been established.
IEX will begin publishing a list of top brokers once we get the proper permissions from subscribers.
Where can I learn more?
- IEX Insight post on ATS Statistics of Interest
- SEC ATS White Paper, October 2013
- Contact IEX Market Operations at 646.568.2330 or marketops@iextrading.com.
- Contact IEX Sales at 646.568.2345 or subscriber@iextrading.com.
- Visit the IEX Website iextrading.com.
- Become an IEX Subscriber.
About IEX
Dedicated to institutionalizing fairness in the markets, IEX provides a more balanced marketplace via simplified market structure design and cutting-edge technology. IEX operates a fair-access platform accessible by any qualified broker dealer. IEX is driven by a team of cross-industry experts with backgrounds spanning market venues, electronic trading, and broker-dealers. IEX is the first equity trading venue seeded exclusively by a consortium of buy-side investors, including mutual funds, hedge funds, and family offices. Learn more at: iextrading.com.