Portfolio Update

Henderson High Income Trust PLC
02 October 2007

HENDERSON HIGH INCOME TRUST PLC

HENDERSON GLOBAL INVESTORS


2 October 2007



                        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 2007.
Holdings with a value greater than 5% of gross assets are marked*.


Company
HSBC*
BP
Aviva
Vodafone
BT
National Grid Transco
British American Tobacco
Scottish & Southern Energy
Amec
Galliford Try





                                    - 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]




                      This information is provided by RNS
            The company news service from the London Stock Exchange