Vanguard Australia will look to buy or merge with domestic pension funds, in an effort to grow its retirement product as much as fifty-fold, Managing Director Daniel Shrimski said on Wednesday, in a market worth almost $2.3 trillion. Launched last November, the Vanguard Australia pension product has grown to roughly A$900 million ($597 million) in assets and Shrimski said mergers were part of the plan to become a mid-sized player within five to seven years. In Australia, that typically means between A$10 billion to A$50 billion under management.