To date, IG US has captured an insignificant share of the U.S. market, compared to the other four U.S. retail forex brokers. The numbers are as follows:
- Gain Capital (forex .com) – 39% market share
- Oanda – 35% market share
- Interactive Brokers – 16% market share
- TDAmeritrade – 10% market share
- IG US – less than 6/10 of 1% market share
These numbers are based on customer funds on deposit with the respective brokers, and they come from a report titled Selected FCM Financial Data released monthly by the CFTC.
Here’s a post with more detail – CFTC data for U.S. forex brokers, as of June 30