Interactive Brokers

Overview
Interactive Brokers (IB) is an online discount brokerage firm founded in 1993. IB is the largest retail broker as measured by Daily Average Revenue Trades (DARTs). The firm is founded by Thomas Peterffy who is credited as the father of digital trading by Forbes. Interactive Brokers Group has a market capitalization of $18 billion as of July, 2015 after combining both private and public float.

Cost structure for passive investors
Interactive Brokers is a low cost operator in the brokerage industry. The firm is highly profitable despite its low commission structure due to its highly automated trading platform, active client base and low touch service.

Passive investors can take advantage of low trading cost and breadth of product offerings from IB, provided two caveats relevant for certain investors: 1.For accounts with equity below $100,000, IB charges a $10/month minimum activity fee. This fee is reduced by the amount of commission generated for the month. 2.IB charges a fee for real time market data subscriptions. This fee is passed-through from exchanges that actually sell the data product. Passive investors are not advised to subscribe to real time market data as it is unnecessary for the investment style.

Interfaces for trading
Interactive Brokers offers three different trading platforms called QuickTrade, WebTrader and Trader Workstation (TWS). QuickTrade is the simplest and thus most suitable for passive investors.

Mutual funds
Approximately 270 Vanguard fund tickers can be purchased through IB. In total, more than 4000 mutual funds from 64 fund families are accessible through IB as of August, 2015.

Although most funds are US based, several European domiciled funds are also available through IB.

A complete list of North American funds is available here.

Interactive brokers charges $14.95 per Mutual Fund trade. Firm also offers more than 900 No Transaction Fee (NTF) funds where the broker is compensated with 12b-1 fee rather than a trade execution fee.

ETFs
Interactive Brokers provide access to thousands of ETFs from 13 different countries. For the US market, execution fee for ETF is .0035/share with minimum execution fee of 35 cents under its tiered pricing structure. IB offers commission-free trading for Global X ETFs.

International investing
The majority of Interactive Brokers clients are located outside of United States. Clients can trade in over 100 market centers in 24 different counties through its platform. IB has offices in Australia, Canada, China, Hong Kong, India, Japan, Russia, UK and US. .