Interactive Brokers Is Holding $930 Billion of Customer Money. Here's What That Earns at Today's Rates.

Interactive Brokers has grown customer equity to $930 billion and is capitalizing on high interest rates, with net interest income rising from $1.148 billion in 2021 to $3.56 billion in 2025. The company is experiencing strong growth with 5.19 million customers and 34% year-over-year customer growth. However, the stock trades at an elevated P/E ratio of 37, and analysts warn that falling interest rates could become a headwind, recommending investors avoid the stock for now.