Shares in ASOS jumped on the FTSE AIM 100 in morning trading after the online fashion retailer reported a strong boost in sales and revenue in the full year ended 31 March.

Group retail sales increased 58 per cent to £324.8 million, while group revenue, which includes income from third parties and postage & packaging, rose 53 per cent to £340.4 million.

Retail sales grew strongest for the group in its Rest of the World operations, where sales soared 312 per cent to £48.3 million. In the US sales rose 242 per cent to £18.9 million and in Europe sales increased 82 per cent to £73.9 million.

In Great Britain retail sales rose 24 per cent to £183.7 million.

Nick Robertson, CEO of ASOS, commented, "Profit before tax, pre exceptional, for the full year to March 2011 is likely to be towards the top end of expectations.

"We have approached the new financial year with confidence and are excited about the prospects for both our UK and International businesses."

By 11:20 shares in ASOS were up 9.61 per cent on the FTSE AIM 100 to 1,871.00 pence per share.