Some knowledgeable, frequent traders are complaining that they are not getting the best possible prices by using the network.

There are many trading styles, with frequent or dynamic traders and some longer-term investors.

Moreover, she said, frequent traders also seem unaware of so-called wash sale rules.

Brokers probably don't deserve a monthly grilling unless you're a frequent trader.

So, frequent traders do poorly in their own accounts and raise other investors' costs by increasing volatility.

And in a market moving sharply up and down, the frequent trader has more of a chance for sharp gains - or losses.

He has cut down on his trading since spending $1,000 in commissions shortly after he started, even with discounts for frequent traders.

It is not hard to see how overconfidence might lead to bubbles: though frequent traders lose on average, sometimes they luck out.

At active rates, which are only for frequent traders, the cost is a nickel a share, or $150.

Now, banks are frequently entering into these contracts with hedge funds, which as frequent traders may wind up transferring the contract to another party.