Holding(s) in Company

HSBC Holdings PLC
28 November 2006


NOTIFICATION OF MAJOR INTERESTS IN SHARES



Section 198 - Companies Act 1985



The Company was notified on 27 November 2006 that Merrill Lynch & Co., Inc. had
a notifiable interest as at 27 November 2006 in 515,386,875 ordinary shares of
US$0.50 each in HSBC Holdings plc, representing approximately 4.45% of the
ordinary shares in issue.



A copy of the letter of the notification is quoted below.



P A Stafford
Deputy Group Company Secretary
HSBC Holdings plc



Letter to HSBC Holdings plc dated 27 November 2006 from Merrill Lynch
International





"Dear Sir



                   Companies Act 1985 ss 198-202 (as amended)



We are writing to notify you with regard to a change of circumstances affecting
Merrill Lynch & Co., Inc's interest under the above legislation.



This letter serves as notification, by reason of the provisions of section 203
of the above Act, that:



a) BlackRock Inc. (as asset management company in which Merrill
Lynch & Co., Inc owns 49.8% of the common stock) has the interests in relevant
share capital of your company disclosed in the attachments to this letter;



b) Merrill Lynch & Co., Inc has in aggregate the interests in
the relevant share capital of your company disclosed in the attachment to this
letter.



If you have any queries regarding the contents of this letter, please contact
Alasdair Coutts-Britton on 020-7996-3565, Facsimile 020-7996-1174.



Yours faithfully

(signed)

Duly authorised for and on behalf of

The notifying companies



Attachment



Company:         HSBC Holdings Plc                  as of: 17 November 2006



Class of shares: ordinary



Each company named below is interested in the aggregate number of the shares
identified above set opposite its name.  Where the number includes shares
additional to those shown in the first attachment to the accompanying letter,
certain further details are also set out below.


Company                                              Aggregate number of shares interested in

Merrill Lynch & Co., Inc                             377,454,454
BlackRock Group                                      137,932,421
Aggregated total                                     515,386,875



Schedule



Part 1



Name                              Address
BlackRock Investment              33 King William Street
Management (UK) Limited           London EC4R 9AS



Part 2



Merrill Lynch & Co., Inc.         World Financial Center
                                  North Tower
                                  250 Vesey Street
                                  New York
                                  NY 10281-1332"


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