O'Connor joined the firm a year ago as a director of multi-asset. He was previously a partner and head of asset allocation in the EMEA sector at Mercer Investment Consulting and has also served as a strategist and proprietary trader at Credit Suisse
The two are tasked with developing the firm's multi-asset team franchise in institutional and retail markets globally.
'Our intention is to build up our institutional business to match that of our retail offering, and adding someone of Paul’s ability to work with me to achieve that aim is a significant step forwards,' McQuaker said.
In the three years to 31 December 2012, the £437.4 million Henderson Multi-Manager Managed fund has returned 14.9% compared with an average 19.1% for the IMA Mixed Investment 40-85% sector, making it fourth quartile. Over five years it is also bottom quartile.
The fund has made back some of that shortfall in the past 12 months however. Over one year the fund is top quartile, with a return of 18.1%, compared with the sector average of 14.6%.