Offer Update

London Stock Exchange
27 October 2000



                                                               27 October 2000

                     RESPONSE TO CIRCULAR FROM OM GRUPPEN



The Board of the London Stock Exchange notes the circular published today by
OM Gruppen.

Don Cruickshank, Chairman of London Stock Exchange plc, said: 'OM's third
document adds nothing new for our shareholders or our customers.

 'We had hoped that OM might have taken the opportunity to explain what went
wrong - numerous times - with the Stockholm and Copenhagen exchanges' systems
last week, but they have chosen to ignore this. Despite serving only these two
small-scale equity exchanges, OM's management has consistently failed to
maintain reliable equity trading systems and to manage capacity demands.

 'OM's offer, which has not been revised, continues to represent inadequate
value and is still based on OM's shares of uncertain value. In recent weeks,
their share price has dropped by some 30 per cent. Our shareholders should
continue to reject this inadequate offer: we are going to get on with the task
of building our business.'



For further information contact:

London Stock Exchange

Kay Dixon                020 7797 1222

Jeremy Hughes

Schroder Salomon Smith Barney

Philip Robert-Tissot     020 7986 4000

Brunswick

Derek Bainbridge         020 7404 5959
                        
David Brewerton

Schroder Salomon Smith Barney, which is regulated in the United Kingdom by The
Securities and Futures Authority Limited, is acting for London Stock Exchange
plc and no one else in connection with the offer by OM and will not be
responsible to anyone other than London Stock Exchange plc for providing the
protections afforded to its customers or for providing advice in relation to
the offer by OM. Schroder Salomon Smith Barney has approved this press release
for the purposes of Section 57 of the Financial Services Act 1986.