Interactive Brokers is trading higher as investors react to the company’s most recent monthly operating snapshot, which highlighted strong trading activity in March 2026. The company reported total client DARTs of 4.329 million for March, up 25% versus March 2025 (and down 1% from February), reinforcing the view that elevated retail and professional trading volumes are supporting brokerage revenue momentum.

The March metrics show continued scale: total accounts of 4.399 million and net new accounts of 88.0 thousand. The DARTs print is particularly important for a transaction-driven brokerage because it can be a near-term read-through to commission-related activity, while the firm’s broader asset base and client balances remain central to interest income trends.

Attention now shifts to Interactive Brokers’ next earnings report, widely expected around Tuesday, April 21, 2026. With the stock already reacting positively to monthly activity data, the upcoming results and forward commentary on client growth, trading intensity, and net interest dynamics are likely to determine whether today’s move has follow-through.