TD Ameritrade is an American online broker with over 6 million U.S. customers, and many more internationally, that has grown rapidly through acquisition to become the 746th-largest US firm in 2008. TD Ameritrade Holding Corporation is the owner of TD Ameritrade Inc. Services offered include common and preferred stock

Preferred stock

Preferred stock, also called preferred shares, preference shares, or simply preferreds, is a special equity security that has properties of both an equity and a debt instrument and is generally considered a hybrid instrument...

s, futures

Futures contract

In finance, a futures contract is a standardized contract between two parties to exchange a specified asset of standardized quantity and quality for a price agreed today with delivery occurring at a specified future date, the delivery date. The contracts are traded on a futures exchange...

, ETFs

Exchange-traded fund

An exchange-traded fund is an investment fund traded on stock exchanges, much like stocks. An ETF holds assets such as stocks, commodities, or bonds, and trades close to its net asset value over the course of the trading day. Most ETFs track an index, such as the S&P 500 or MSCI EAFE...

, option

Option (finance)

In finance, an option is a derivative financial instrument that specifies a contract between two parties for a future transaction on an asset at a reference price. The buyer of the option gains the right, but not the obligation, to engage in that transaction, while the seller incurs the...

 trades, mutual funds, fixed income

Fixed income

Fixed income refers to any type of investment that is not equity, which obligates the borrower/issuer to make payments on a fixed schedule, even if the number of the payments may be variable....

, margin

Margin (finance)

In finance, a margin is collateral that the holder of a financial instrument has to deposit to cover some or all of the credit risk of their counterparty...

 lending, and cash management services.
The preferred customers of Ameritrade, Apex clients average five trades per month over a three month period and/or have an account balance of one hundred thousand dollars to qualify.