Portfolio Update

Henderson High Income Trust PLC
03 October 2006

HENDERSON HIGH INCOME TRUST PLC



HENDERSON GLOBAL INVESTORS



3 OCTOBER 2006

                        HENDERSON HIGH INCOME TRUST PLC

                            Listing Rule 15.4.11 (2)

In accordance with paragraph 15.4.11 (2) of the Listing Rules, Henderson High
Income Trust plc announces its ten largest investments as at 30 September 2006.
There are no holdings with a value greater than 5% of gross assets.


Company

HSBC
BT
BP
Royal Bank of Scotland
Old Mutual
Scottish & Southern Energy
British American Tobacco
Galliford Try
Royal Dutch Shell
Prodesse Investment



This excludes group investments.





                                    - ENDS -





For further information, please call:



Alex Crooke
Henderson High Income Trust plc
Telephone: [phone]



James de Sausmarez
Head of Investment Trusts
Henderson Global Investors
Telephone: [phone]




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