IBKR vs WSO Comparison

Interactive Brokers is a large, automated, retail and institutional brokerage that boasted nearly $570 billion in customer equity at the end of 2024. The company cut its teeth as a market maker, introducing US financial markets to automated and algorithmic training before expanding into brokerage services in 1993. The firm has a wide-ranging client base, with its best-in-class order execution and extremely low margin lending rates catering to a sophisticated audience of hedge funds, proprietary traders, and introducing brokers that account for about 45% of the firm's commissions. With operations spanning more than 160 electronic exchanges, 36 countries, and 28 currencies, Interactive Brokers caters to a global clientele, with more than 80% of active accounts sitting outside the US market.

Watsco is the largest heating, ventilation, air conditioning, and refrigeration products distributor in North America. The company primarily operates in the United States (90% of revenue) with significant exposure in the Sunbelt states. Watsco also has operations in Canada (5% of sales) and Latin America (5% of sales). The company's customer base consists of more than 125,000 contractors that serve the replacement and new construction HVACR markets for residential and light commercial applications.