Bluetooth chip designer CSR saw its shares plunge 14 per cent to 356p as the company's own gloomy outlook for the rest of 2010 overshadowed a strong first-half jump back into the black.
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CSR flagged growing macro-economic concerns, but the nastier surprise was it seeing "foundry capacity becoming increasingly constrained" at its contracted suppliers, largely because of underinvestment in the past. The company expects third-quarter sales of $220m-$235m (£141m-£151m), slightly ahead of the last three month's $221m, but a marked slowdown on the growth seen over the first half.