Interactive Brokers Group, Inc. (Nasdaq: IBKR) shares traded 1.5% higher after-hours Tuesday after the online brokerage firm reported its Q3 results, with EPS coming in at $0.78, better than the consensus estimate of $0.75.

Quarterly adjusted net revenue was $650 million, which is also above the consensus estimate of $642.36 million.

Commission revenue increased by 11% year-over-year (or by $32 million) to $311 million on higher customer stock and options trading volumes, with customer accounts increasing 57% year-over-year to 1.54 million.

Interactive Brokers said customer accounts grew by 57% to 1.54 million. Meanwhile customer equity grew 52% from the year-ago quarter to $353.8 billion.

DARTs increased 24% from the year-ago quarter to 2.26 million.