Online retailer Ocado - one of the most closely-watched initial public offerings of 2010 - fell away in trading this morning after rocketing 10% on Tuesday, as analysts at one of the banks which brought the company to market suggested there is no longer sufficient upside to merit a buy rating.

On Tuesday the retailer's shares closed at 196.7p, the highest since it listed in July at 180p. The shares had not traded over that level until yesterday morning, and trading volumes in the stock increased in the final few hours before close.