Several key metrics ticked up for Interactive Brokers Group (NYSEMKT:IBKR) in April. According to data released by the company, its daily average revenue trades -- considered a crucial measure in the industry -- grew by 17% on a year-over-year basis, and 7% over March, to land at roughly 480,000.

Also trending northward was the figure for customer equity at the end of the month, which stood at $36.4 billion. This was 25% higher than at the end of April 2012 and represented a 2% gain on a month-over-month basis.

Ending customer credit balances advanced to $22.6 billion, or 20% higher, than the year-ago figure. That amount was a 0.4% improvement over March's number.

Fool contributor Eric Volkman has no position in Interactive Brokers Group. The Motley Fool recommends Interactive Brokers Group. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.