Inditex, the world's biggest clothing retailer and owner of the Zara brand, stretched its lead over rivals like H&M with an 18% rise in first-quarter profit.
But the company said it saw its sales growth slow slightly in recent weeks.
The Spanish company, which also owns younger fashion chain Pull&Bear and upmarket label Massimo Dutti, said net profit totalled €654m for its first quarter that ended on April 30, in line with analysts' forecasts.
Earnings before interest, tax, depreciation and amortisation (EBITDA) were €1.1 billion, up 17% year-on-year and above estimates.
Inditex has consistently outperformed H&M and other rivals in the past few years as a result of its online growth and fast-fashion model that allows it to get the latest trends from the runway into stores within days.
Its shares have rallied 13% in the past three months as analysts expect the retailer to benefit from a more positive currency environment this year.
But its shares slipped today after it said its local currency sales rose by 12% from February 1 to June 3, slowing from 14% growth between February 1 and April 30.
Close to half of the company's 7,385 stores, operating in 93 markets, report their earnings in currencies other than the euro.
Inditex Chairman and CEO Pablo Isla, when asked about the most recent trading trends on a conference call with analysts, declined to elaborate but said the business in its key Spanish home market remained "very healthy".
During Inditex's first quarter, which runs from February 1 to April 30, the company opened new stores in 30 markets and continued with an online push in southeast Asia, launching Zara online in Singapore, Malaysia, Thailand and Vietnam.
It will launch its online business in India later this year.
Zara makes up two thirds of group sales.
Inditex's net sales rose by 14% in the first quarter from a year earlier to €5.6 billion, also just above analysts' forecasts.
