Quiz, which made its stock market debut at the end of July with a £245m valuation, hailed “strong growth” across all channels in its first half.
The fashion retailer said underlying pre-tax profit jumped 31% to £4.8m in the six months to September 30.
Accounting for one-off costs, including the firm’s admission to AIM, pre-tax profit remained flat at £3.7m.
Group sales surged 35% to over £56m – driven, the retailer said, by increasing brand awareness and growth across all its distribution channels.
Its online sales rocketed 204% to £13.8m, while revenue from UK stores and concessions increased 15.2% to £32.3m.
Meanwhile, sales at its fledgling international division totalled £10m – up 26% year on year. It opened its first three stores in Spain during the half.
The company, of which JD boss Peter Cowgill is a non-executive chairman, said its online customer base expanded by 86% during the period.
The fashion retailer said current trading remained strong, with group sales up 32.9% in the last seven weeks.
Quiz chief executive Tarak Ramzan said: “Underpinned by our strong collections, the group enters the important Christmas trading period with good momentum.
“The board remains confident of delivering growth across all channels for the full year.”