"We recognized a need in futures trading for a consolidated data
approach that helps investors identify interdependencies in financial
markets and conduct inter-market analysis," said Chuck Thompson ,
president of eSignal.

absorb tick

"Now,
investors have an even greater selection of wireless devices for
accessing portfolios and comprehensive market information from
anywhere at anytime. With the
processing capabilities of Intel XScale technology, QuoTrek is able to
respond faster and optimize its performance . For more information on QuoTrek,
including a complete list of compatible wireless devices, visit
www.

Business Editors/Technology Editors

HAYWARD, Calif.

commodities tradestation

esignal.0 Now Provides Futures Traders with
Stocks and Indices Data from Exchanges Throughout the World

eSignal, a division of Interactive Data Corporation (NYSE: IDC)
and a leading provider of streaming, real-time financial market data,
news, analytics and decision support tools to professional and
individual traders, today announced the immediate availability of
FutureSource Workstation(R) 2.

charting jf

2 represents another big step forward for
our customers," said Chuck Thompson, president of eSignal.
"Intel technology not only powers personal computers, but also is
used in cell phones, PDAs and other wireless devices," said Hector
Llorens, marketing manager, Americas, personal communications
platforms for Intel Corporation.

quicken downloader

2 is optimized for Intel XScale technology. Intel XScale
technology-based products boost processing capabilities and provide
excellent power management for longer battery life. With QuoTrek 1. (NASDAQ(R); NASDAQ: NDAQ), London Stock Exchange (LSE) and The
Tokyo Stock Exchange - making FutureSource Workstation 2.

About TradeStation Group, Inc.

equities analytics

0 and add only the exact
content and data components desired most.0
features advanced quote components including support for expressions,
Greeks, copy-and-paste DDE and over 50 customizable headings.com/futuresource/

About eSignal:

The eSignal division (www. (Nasdaq: TRAD), today announced that it has received clearing firm
membership with the Options Clearing Corporation (OCC).

sharemarket analytics

2, users may quickly access and
make trades via brokerages including Ameritrade, E*TRADE, Charles
Schwab, Harrisdirect and Scottrade.interactivedata.0, run the
installation, and you're ready to experience the power of FutureSource
in just minutes.0 is supported by a
sophisticated CRM, offering specialized billing and reporting , which
is ideal for managing and servicing corporate customers.

TradeStation is an electronic trading platform that offers state-of-the-art
direct-access order execution and enables clients to design, test, monitor and
automate their own custom trading strategies. The trading platform
currently offers streaming real-time Equities, Options, Futures and Forex
market data., develops and offers strategy trading software tools and
subscription services, and hosts the company's annual users conference. When used in this press release, the words
"should," "expects," and similar expressions , if and to the extent used, are
intended to identify forward-looking statements.
954-652 -7000

charting intraday

eSignal Releases QuoTrek 1.2 with New Trading Access and Support for the Latest Intel -Based Wireless PDA Solutions

Furthermore, trade decisions can be made quickly
with access to their brokerage directly from QuoTrek, which allows
investors to react to real-time market fluctuations without being tied
down to a PC. In February 2005, TradeStation
was named Best Stock Brokerage and Best Futures Brokerage and, for the third
year in a row, Best Direct-Access Stock Broker, Best Direct-Access Futures
Broker, Best Professional Platform and Best Institutional Platform, in
"Technical Analysis of Stocks and Commodities" magazine.

Forward-Looking Statements - Issues , Uncertainties and Risk Factors
This press release contains statements that are forward-looking and are
made pursuant to the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995.

updater quicken

"
For investors who own an Internet-ready mobile device such as a
PDA or Smartphone , QuoTrek 1.2 delivers global information from
financial markets throughout North America, Europe and Asia.----

FutureSource Workstation 2. This is the final
approval required for TradeStation to commence equity options self-clearing
for its active trader client base.

axl tf

"
QuoTrek 1. A subscription to the
service starts at $25 per month. The
advanced charting component includes support for overlays , underlays,
chartable expressions, studies on studies and drawing tools. Tick,
intra-day, daily , weekly, monthly and continuation charts are
included, along with a robust list of indicators.

TradeStation Receives Approval To Self-Clear Equity Options

, offers the TradeStation platform to
institutional , professional and serious, active individual traders.

commodities metastock

0 include items such as DDE support, Time + Sales , Foreign Exchange
data, Weather, News and Charts. (Nasdaq: TRAD), through its operating subsidiary ,
TradeStation Securities, Inc.

brokered commodities

Users may also add their own links
to other brokerages. "By offering data from nearly 50 exchanges
located throughout the world, FutureSource Workstation 2.

Availability:

No additional hardware is needed to install FutureSource
Workstation 2.0.0., the principal operating subsidiary of TradeStation Group,
Inc.

downloader quicken

com

About eSignal:

The eSignal division (www.com) is a leading global
provider of financial and business information to professional and
active individual investors. This release extends the product's
comprehensive futures, options and cash price data, news and charting
analysis tools with equities data covering major global exchanges
including The New York Stock Exchange (NYSE), Nasdaq Stock Market,
Inc.com) is a leading global
provider of financial and business information to professional and
active individual investors ., TradeStation
Securities, Inc. All forward-looking
statements are based largely on current expectations and beliefs concerning
future events that are subject to substantial risks and uncertainties .

quicken brokered

The new QuoTrek features quick-access links to online
brokerages directly from within the application , as well as enhanced
setups for auto login.
"With support for Intel's latest technologies and the ability to
access brokerages, QuoTrek 1. QuoTrek
1.
Add-on features immediately available for FutureSource Workstation
2. Self-clearing of equity options should
begin next month, at which time the company expects to begin receiving the
benefit of reduced clearing costs for its clients ' options trades.

absorb intraday

2 now runs on more
wireless devices than ever with support for the latest Intel (NASDAQ:
INTC) XScale(R) technology-based PDAs and Smartphones.2 features the same streaming, real -time quotes as eSignal's
award-winning services.
Enhancing its robust features to further facilitate well-informed
trading decisions, QuoTrek 1.0 brings real-time, streaming futures,
options, cash , foreign exchange and equities data direct to active
individual, broker and professional futures traders. For a
complete list of FutureSource Workstation 2.esignal.

tick commodities

Building on a 20-year legacy of
delivering time-sensitive financial information, eSignal provides
streaming, real-time market data, news and analytics. PLANTATION, Fla.
TradeStation Securities, Inc. (Member NASD, NYSE , SIPC, NSCC, DTC, OCC +
NFA) is a licensed securities broker-dealer and a registered futures
commission merchant, and also a member of the American Stock Exchange,
Archipelago Exchange, Boston Options Exchange, Chicago Board Options Exchange,
Eurex US, International Securities Exchange, Pacific Exchange and Philadelphia
Stock Exchange.

delayed updater

In addition, QuoTrek 1. Stocks, indices, futures and FOREX data can be
accessed using any one of several mobile devices, including Microsoft
Windows Mobile-based Pocket PCs, Palm and RIM BlackBerrys, as well as
Windows Mobile and Palm OS-based smart phones. eSignal 's suite
of products includes eSignal(R), Advanced GET(TM), QuoTrek(R),
FutureSource(R) and MarketCenter LIVE(TM).0 is available immediately at no cost
to all registered users of FutureSource Workstation 1. eSignal's suite
of products includes eSignal(R), Advanced GET(TM), QuoTrek(R),
FutureSource (R) and MarketCenter LIVE(TM).
TradeStation Group, Inc.

quicken tick

QuoTrek has global
access on GPRS, CDMA, 3G, UMTS and WiFi networks from Cingular,
Nextel, Orange, O2, Sprint, TIM, T-Mobile, Verizon , Virgin Mobile,
Vodafone, WIND and many others.com) of Interactive Data
Corporation (NYSE: IDC ) (www.

eSignal Announces an Upgrade to FutureSource Workstation with Real-Time Equities Data

0 one of the
most comprehensive sources of market data in the futures trading
community.
FutureSource Workstation 2.

These sites specialize in stock market quotes and historical price data.

unobtrusive downloader

0 not only
provides a mechanism that helps futures traders to formulate and
verify positions, it does so within a comprehensive market data
framework that allows investors to look at conditions across several
markets at once ."
FutureSource Workstation 2. And, QuoTrek(R), our wireless quotes,
charts and news PDA software solution can be added onto any
FutureSource WorkStation subscription.com) of Interactive Data
Corporation (NYSE: IDC) (www.

Contact --
David H.

intraday sharemarket

Business Editors/Technology Editors

HAYWARD, Calif.
QuoTrek is currently available on a 30-day, free trial basis
(exclusive of applicable third party fees).

Simply download FutureSource Workstation 2.0 features as well as an
overview of the service, go online to
http://www.

tullett brokered

0. Fleischman
Chief Financial Officer
TradeStation Group, Inc.

updater ticktac

"Mobile applications like QuoTrek
benefit from Intel XScale technology with faster processing chips such
as those found in the Sierra Wireless (NASDAQ: SWIR ) Voq Professional
Phone, the Audiovox PPC 6601 and the palmOne (NASDAQ: PLMO) Treo 650.

updater charting

2
- eSignal 's wireless quote and market information service for mobile
phones and PDAs. FutureSource Workstation 2.esignal.interactivedata. Actual
results may differ materially from the results herein suggested .

brokered metastock

----eSignal, a
division of Interactive Data Corporation (NYSE: IDC) and a leading
provider of streaming, real-time financial market data, news,
analytics and decision support tools to professional and individual
traders, today announced the immediate availability of QuoTrek(R) 1.2 has also added easy access to online
trading brokerages. FutureSource Workstation 2. The company's other operating subsidiary, TradeStation
Technologies, Inc. Factors that
may cause or contribute to the various potential differences include, but are
not limited to, the possibility that self-clearing of options trades may be
later than currently expected, depending upon the company's success (or lack
thereof ), or delays, in completing required software system adjustments to
enable options self-clearing; unanticipated risks or negative effects of or
associated with self-clearing options trades; the cost savings and
efficiencies of self-clearing options trades being less favorable than
expected; the effect of unanticipated OCC deposit or capital requirements once
live operations begin and if, as and when the company's options business grows
and/or changes; other items, events and unpredictable or unanticipated costs
that may occur; and other issues, risks and uncertainties indicated from time
to time in the company's filings with the Securities and Exchange Commission
including, but not limited to, the company's Annual Report on Form 10-K for
the year ended December 31, 2005, and other SEC filings and company press
releases.

dtn downloader

quotrek. Designed and
built on a "building block" concept , customers can take the core
feature set of FutureSource Workstation 2. Building on a 20-year legacy of
delivering time-sensitive financial information, eSignal provides
streaming, real-time market data, news and analytics.