Raspberry Pi , the British computer company that floated in June, reported on Tuesday stronger-than-expected adjusted earnings of $20.9 million for the first half, sending its shares up 7% in early trade.

Raspberry Pi reported higher pretax profit for the first half, driven by stronger profitability than expected, and double-digit revenue growth. The U.K. low-cost computer maker said Tuesday that pretax profit for the six months ended June 30 rose to $10.