It's difficult to measure how much AMP/Axa stands to miss out once BNZ begins marketing its own scheme but, as a rough guide, the much-smaller KiwiBank garnered 8,000 members in its KiwiSaver product less than a year after ditching former scheme manager Mercer.
For Russell, something of an outsider in the retail market, this is a major coup and could significantly boost its funds under management given the unerring success of bank-based KiwiSaver schemes.
Better-known as an institutional investment consultant and multi-manager, Russell does already have a KiwiSaver presence on the Aonsaver schemes and has had a pretty good performance run. A deal with BNZ, however, will bring Russell to the masses... again (those with long memories may recall Russell used to manage investment funds for ANZ).
Alister Van der Maas, head of Russell NZ, declined to comment on the BNZ news. However, he said it's been a good couple of years for the group both in its consulting business and investment management.
According to Van der Maas, the Russell investment business - in both institutional and retail markets - has been boosted by its new arrangement with Implemented Investment Solutions - a business set up by former AMP Capital man, Anthony Edmonds.
Guardian Trust is also understood to be the BNZ KiwiSaver back-office front-runner.