Computing firm Raspberry Pi pops 31% in rare London market debut

Computing firm Raspberry Pi pops 31% in rare London market debut - Raspberry Pi, which makes tiny single-board computers, priced its shares at 280 pence each. - Shares of Raspberry Pi began "conditional dealing" on Tuesday. - This is a period during which certain investors, like institutional ones, start trading shares. Shares of Raspberry Pi on Tuesday were up 31% in morning trade, as the British computing startup seeks to raise some £166 million ($211.2 million) from its initial public …