Australian initial public offerings significantly outperformed the broader sharemarket in the third quarter, with the IT sector dominating both in terms of the number of floats and returns. The 24 companies to list on the S&P/ASX 200 in the three months to September 30 averaged a 28.2 per cent return, which compares with a 3.9 per cent rise from the broader index, according to a quarterly report from OnMarket, due for release later this week.