At, we wanted to take a look at how the summer season is treating the online brokers thus far. All of the publicly-traded online brokers have reported July trading activity numbers in the past couple weeks. The second quarter saw online brokers as a whole report improved earnings as trading activity went up. Has it continued early on in the third quarter?

TD Ameritrade (AMTD) reported a six percent fall in Daily Average Revenue Trades (DARTs) in the month of July compared to June. However, trading activity surged 12 percent when compared to the same period a year ago.

E*TRADE (ETFC) reported DARTs of 140,898 which was down two percent from June, but it was up a solid ten percent from a year ago.

Interactive Brokers (IBKR) had DARTs of 465,000 in the month, which was a 12.4 percent decline sequentially. On the other hand, the DARTs from this year were up 13.1 percent from the same period last year.

Charles Schwab (SCHW) reported 498,900 DARTs in the month of July. This marked a 4 percent decline from last month, but it is up a whopping 26 percent from the month of July in 2012.

What does this mean for the industry overall? No one should be surprised that trading activity is down a bit during the month of July, since it is seasonally one of the slowest months every year. On the other hand, it has to be encouraging for online brokers that across the board the July trading numbers are significantly higher than they were one year ago. will continue to monitor trading activity and earnings reports at the publicly-traded online brokerages.