OMAHA, NEB., June 18 /CNW/ - TD AMERITRADE Holding Corporation
(NASDAQ:AMTD) today reported 247,000 average client trades per day in May
2007. Qualified accounts(1) totaled 3,283,000. The Company opened 46,000 and
closed 23,000 accounts during May, resulting in 6,303,000 total accounts.(2)

    Margin Balances and Client Assets

    The Company reported average client margin balances in May of
approximately $7.4 billion. As of May 31, 2007, client margin balances totaled
approximately $7.4 billion. Client assets totaled approximately $300 billion,
of which cash and money market assets amounted to $43 billion.

    AMTD-G

    About TD AMERITRADE Holding Corporation

    TD AMERITRADE Holding Corporation, through its brokerage subsidiaries(3)
provides a dynamic balance of investment products and services that further
the Independent Spirit of individual investors. Listed by Barron's as the #1
Web browser-based online broker and Forbes as one of America's best big
companies, the Company's full spectrum of services include a leading active
trader program and long-term investor solutions, including a national branch
system, as well as relationships with one of the largest networks of
independent registered investment advisors.(4) The Company's common stock
trades under the ticker symbol AMTD. For more information, please visit
www.amtd.com.

    (1) Qualified accounts include all open client accounts with a total
liquidation value greater than or equal to $2,000, except clearing accounts.

    (2) Total accounts include all open client accounts (funded and
unfunded), except clearing accounts.

    (3) TD AMERITRADE, Inc., member NASD (www.NASD.com) /SIPC (www.SIPC.org),
receives clearing and custodial services from TD AMERITRADE Clearing, Inc.,
member NASD/SIPC. TD AMERITRADE and TD AMERITRADE Clearing, Inc. are
subsidiaries of TD AMERITRADE Holding Corporation.

    (4) "The Best Web Browser-Based Online Broker" by Barron's, 3/5/2007
based on Trade Experience, Trading Technology, Usability, Range of Offerings,
Research Amenities, Portfolio Analysis & Reports, Customer Service & Access,
and Costs. Barron's is a registered trademark of Dow Jones, L.P. More info on
the Forbes award is available at www.forbes.com/platinum.

For further information: TD AMERITRADE Holding Corporation For Media:
Kim Hillyer, 402-827-8654 Manager, Communications and Public Affairs
kim.hillyer@tdameritrade.com or For Investors: Tim Nowell, 402-597-8440
Director, Investor Relations timothy.nowell@tdameritrade.com