Shares of the owner of Footpatrol and Cloggs rose as much as 4.4% after the company also said it was seeing "encouraging" like-for-like sales growth in its core sports fashion business, both in the UK and other global markets.

JD Sports' shares have gained 77% this year as the company rides millennials' fondness for athleisure products, helping it post estimate-beating annual earnings earlier this year.

The company has targeted millennials and Generation Z consumers - those born between the mid-1990s and the mid-2000s - who are driving the trend for athleisure, where gym clothes have become acceptable at work, school and on social occasions.

The company has also invested heavily in international expansion to drive growth. JD said it opened 29 new stores in the period to June 29, mainly in Europe, Asia-Pacific and Australia.

For the full year, the company said it was confident in delivering annual headline pretax profit at least equal to the current consensus market expectations of 404.3 million pounds.

"We didn't expect such high level of sales growth to persist, but it has," Peel Hunt analysts said, calling the like-for-like growth highly impressive.

JD's upbeat forecast comes against the background of the British retail sector's ongoing struggles, mainly caused by weakening consumer spending amid uncertainty over Brexit, higher business costs and a shift to online shopping.

JD, which runs more than 2,400 stores that sell brands including Nike, Puma and Adidas, has weathered the storm, thanks to its international footprint and a strong online presence.

In contrast, rival Sports Direct, majority owned by billionaire Mike Ashley, has struggled and recently failed to buy Debenhams and Findel.

"It's likely they are going to pick up market share from other players," Stifel Nicolaus analyst Eleonora Dani said, but added that it would be harder for JD to keep up the pace of growth in a challenging retail environment.

Later on Wednesday, over 30% of shareholders voted against approving the remuneration report at the company's annual general meeting.

JD added that it was time to carry out a review of its corporate governance practices and that it would engage with shareholders on remuneration among other issues.

Over 89% shareholders voted to re-elect Chairman Peter Cowgill. On Tuesday, proxy advisory firm PIRC had recommended shareholders to vote against his re-election.

(Reporting by Tanishaa Nadkar, Shariq Khan and Sangameswaran S in Bengaluru; Editing by Alexandra Hudson and Elaine Hardcastle)

By Tanishaa Nadkar and Shariq Khan