Exhibit 99.1
FOR IMMEDIATE RELEASE

Contacts:
Investor Relations:                           Media Relations:
John Pitt                                     Alicia Curran
Instinet Group Incorporated                   Instinet Group Incorporated
212 310 7481                                  212 310 5462
john.pitt@instinet.com                        alicia.curran@instinet.com

                      INSTINET ANNOUNCES MANAGEMENT CHANGE

New York -- May 30, 2003 -- Instinet Group Incorporated (NASDAQ: INET) announced
today that, as part of its continuing consolidation and the ongoing integration
between Instinet and Island, Jean-Marc Bouhelier, Instinet's Chief Operating
Officer, has chosen to step down as COO effective today, and will be leaving the
company by the end of next month.

"Jean-Marc has played a key role over the last several years in building
Instinet's business, helping to lead the organization through a very challenging
time for the industry, and strengthening its relationships with institutional
customers through the development of leading edge products and services," said
Edward J. Nicoll, Instinet's Chief Executive Officer. "We greatly appreciate his
service to Instinet and the years of hard work he put into this company,
including his role in supporting the integration of the two companies.  I am
confident that he will continue to be a leader in whatever his future pursuits
may be."

This management change is part of Instinet's ongoing effort to produce a more
efficient corporate structure and consolidate management responsibilities.
Consistent with these goals, Bouhelier's direct reports will, for the interim,
report to Ed Nicoll.

"My time at Instinet has been a great experience, and I will always cherish the
opportunity to have worked with some of the most talented and dedicated
individuals in this industry," said Bouhelier. "Together, we re-positioned
Instinet as the leading market place for OTC securities and delivered great new
products to our institutional customers, and I'm sure that the Instinet team
will continue to distinguish itself. For me personally, it's time to move on to
new challenges and opportunities."


About Instinet
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Instinet, through affiliates, is the largest global electronic agency securities
broker and has been providing investors with electronic trading solutions for
more than 30 years. Our services enable buyers and sellers worldwide to trade
securities directly and anonymously with each other, have the opportunity to
gain price improvement for their trades, manage their orders and lower their
overall trading costs. Instinet is part of the Reuters family of companies.

Through our electronic platforms, our customers can access over 40 securities
markets throughout the world, including NASDAQ, the NYSE and stock exchanges in
Frankfurt, Hong Kong, London, Paris, Sydney, Tokyo, Toronto and Zurich. Our
customers consist of institutional investors, such as mutual funds, pension
funds, insurance companies and hedge funds, as well as market professionals,
including broker-dealers.  We act solely as an agent for our customers and do
not trade securities for our own account or maintain inventories of securities
for sale.

                                     # # #

This press release is for information purposes only and is not intended as an
offer or solicitation with respect to the purchase or sale of any security.

copyright 2003 Instinet Corporation and its affiliated companies. Member
NASD/SIPC and a subsidiary of Instinet Group Incorporated. All rights reserved.
INSTINET is a registered service mark in the United States and in other
countries throughout the world. Instinet is part of the Reuters family of
companies. Instinet Corporation is a subsidiary of Instinet Group Incorporated.
Approved for distribution in the UK by Instinet Europe Limited which is
regulated by the FSA and is a member of the LSE.

This news release may be deemed to include forward-looking statements relating
to Instinet.  Certain important factors that could cause actual results to
differ materially from those disclosed in such forward-looking statements are
included in Instinet's Quarterly Report on Form 10-Q for the period ended
September 30, 2002, and other documents filed with the SEC and available on the
Company's website. These statements speak only as of the date of this news
release, and the Company does not undertake any obligation to update them.