In a way, the LVX is not free to LiveVol Securities customers. They charge $0.65/contract for what IB charges $0.50 for. If you trade 1000 contracts per month, you are paying $150/month. 2000 would be $300/month. You can lease LiveVolPro for $300/month and LiveVol Core for only $79/month and get your own brokerage account at any firm you want, including IB.