Online stock market discussion forum, HotCopper, will put forward initial public offers through its website and return 50 per cent of all broker commissions to subscribers in a move that is set to shake up the traditional IPO market.

Online stock market discussion forum, HotCopper, will put forward initial public offers through its website and return 50 per cent of all broker commissions to subscribers in a move that is set to shake up the traditional IPO market.