**Trader consensus assigns a 65% implied probability that Interactive Brokers will beat Q3 2026 earnings expectations**, reflecting the broker's recent track record of outperformance and continued expansion in client activity. IBKR delivered a solid Q2 beat with EPS of $0.69 versus consensus estimates around $0.61–$0.64 and revenue above forecasts, fueled by 30% year-over-year commission growth and 23% higher net interest income from rising margin balances. September 2026 brokerage metrics showed further momentum, with daily average revenue trades up 6% year-over-year, client equity reaching $964.7 billion (27% higher), and accounts growing 35% to 5.576 million. Analysts project Q3 EPS near $0.67–$0.71 on revenue of roughly $1.76–$1.94 billion ahead of the October 15 release. While sustained trading volumes and interest income provide a favorable backdrop, variability in market volatility and interest-rate paths could influence the final outcome.