Lovisa chairman Brett Blundy has reassured investors that the fast-fashion jewellery chain is focused on growth after it published data showing it was falling behind market expectations on sales and new store expansion.

The billionaire businessman owns 40 per cent of the ASX-listed retailer, which has grown quickly to operate 927 stores in 49 countries. Mr Blundy told the company’s annual meeting that he was a “growth junkie”.