Premium fashion retailer Ted Baker has beaten analysts’ expectations, posting a 15.2% rise in group revenue for the 19 weeks to June 11.

Retail sales rose by 9.4% compared to the same period last year despite a “subdued” start to the financial year.

Retail square footage rose by 4.4% to 232,157 sq ft. Ted Baker opened stores in Manchester, Paris and Hong Kong since January as well as concessions in department stores across the US, Spain and Portugal.

Underlying input margins have been maintained, although retail gross margin was slightly below last year due to the mix of product sales and a higher level of promotional activity in all markets, largely driven by its department store concessions rather than its own stores.

The group said its performance was “in line” with the board’s expectations and reflected investment in the Ted Baker brand, both in the UK and internationally.

Ray Kelvin, Ted Baker founder and chief executive, said: “The group has made a good start to 2011. Our collections have been well received across our international markets as we continue to expand the brand into new territories.

“Looking forward into the second half of the year we plan to open new stores in the UK, New Zealand, China and America, whilst maintaining our focus on design, quality and attention to detail which underpin the core strengths of the Ted Baker brand.”

Andy Wade, broker at Numis Securities, said the group was showing “clear improvement” after a slow start to the year. He added that implied retail like-for-likes were up by 5% against tough comparables, ahead of expectations. Wade has slightly increased full year profit before tax forecast from £26.5m to 26.9m.

“Although April was, unsurprisingly, the high point of the quarter, Ted Baker has not seen sales slip dramatically in the later parts of May as we have been hearing from some on the High Street,” Wade said.