NAB entertains equity investment in WOW

National Australia Bank invested an undisclosed amount in the WOW Sight & Sound through the bank's institutional banking arm, the Financial Review reported.

NAB will hold an equity stake of less than 50 per cent in WOW, though the investment is "substantial" WOW's retail director, Con Nicholas, told the newspaper.

WOW has 15 electrical superstores, many of them in Queensland, and plans to open another 25 by 2013.