Holding(s) in Company

RNS Number:7301T
ICAP PLC
30 December 2003

                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     ICAP PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     BARCLAYS PLC

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

     AS IN 2

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     SEE BELOW

5)   Number of shares/amount of stock acquired.

     NOT KNOWN

6)   Percentage of issued Class
      N/A

7)   Number of shares/amount of stock disposed
      N/A

8)   Percentage of issued Class
      N/A

9)   Class of security

     ORDINARY SHARES OF 50P EACH

10)  Date of transaction

     19.12.03

11)  Date company informed

     29.12.03

12)  Total holding following this notification

     3,471,537
               
13)  Total percentage holding of issued class following this notification

      3.01%

14)  Any additional information



15)  Name of contact and telephone number for queries

     KATHRYN DICKINSON
     020 7000 5782 

16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification    30 DECEMBER 2003.....


Letter to ICAP Plc

Companies Act 1985 ("The Act") - Part VI

I hereby inform you that as at 19 December 2003 Barclays PLC, through the legal
entities listed below schedule, has a notifiable interest in the capital of your 
Company of 3.02%.

Details of this interest, together with a breakdown between registered holders 
(as required by Section 202(3) of the Act), are enclosed.

The issued capital of 115,135,335 is the latest figure available to us.

Letter from Barclays Plc


                            LEGAL ENTITY REPORT

ICAP                                                            SEDOL: 0445515

As at 19 December 2003 Barclays PLC, through the legal entities listed below, 
had a notifiable interest in 3,471,537 ORD GBP0.50 representing 3.02% of the 
issued share capital of 115,135,335 units.

Legal Entity                                  Holding            Percentage Held

Barclays Life Assurance Co Ltd                215,910                     0.1875
Barclays Capital Securities Ltd                97,000                     0.0842
Barclays Global Investors, N.A.                53,740                     0.0467
Gerrard Ltd                                     1,660                     0.0014
Barclays Global Investors Ltd               3,103,227                     2.6953

                        Group Holding       3,471,537                     3.011


                            REGISTERED HOLDERS REPORT
ICAP                                                            SEDOL: 0445515                            

As at 19 December 2003 Barclays PLC, through the registered holders listed below,
had a notifiable interest in 3,471,537 ORD GBP0.50 representing 3.02 % of the 
issued share capital of 115,135,335 units.

Registered Holder                         Account Designation           Holding

ALMLUFTTL-18409-CHASE MANHATTA             ALMLUFTT                       46,893
ASTEXMTTL-21359-CHASE NOMINEES             ASTEXMTT                       68,209
ASUKEXTTL-20947-CHASE MANHATTA             ASUKEXTT                    2,140,997
BARCLAYS CAPITAL NOMINEES LIMI                                            97,000
BLENTFUKQ-16344-CHASE MANHATTA             BLENFUK                        25,893
BLENTPUKQ-16345-CHASE MANHATTA             BLENTPUK                       46,646
BLEQFDUKQ-16331 CHASE MANHATTA             BLEOFDUK                       25,731
BLEQPTUEA-16341-CHASE MANHATTA             BLEOPTUE                       60,412
BLEQPTUKQ-16341-CHASE MANHATTA             BLEOPTUK                       57,228
BLUKINTTL-16400-CHASE MANHATTA             BLUKINTT                      803,261
CHATRKTTL-16376-CHASE MANHATTA             CHATRKTT                       43,867
R C GREIG NOMINEES LIMITED A/C             BL1                               117
R C GREIG NOMINEES LIMITED GP1             GP1                             1,543
UBS LIMITED                                583996                         53,740

                                                            TOTAL      3,471,537



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