CSR was the biggest faller among the FTSE 350 in early trading, after the chipmaker's third quarter numbers disappointed analysts.
The FTSE 250 stock was down almost 10% to 314p, despite a 6% rise in third quarter revenue.
A note from Seymour Pierce said:
CSR's Q3 results have come in ahead of our lower end of the range forecasts for revenues at $222.1m vs SPL est $221m but against a guidance range of $220m-$235m. The gross margin of 48% is slightly above the 47.5% that we had in our forecast, but this outperformance is little reason for cheer especially when set against the disappointing Q4 revenue guidance.
CSR's guidance for the fourth quarter is for revenues of between $170m and $185m, down on $198m a year ago.
Carpetright also fell 5% to 689p after the retailer reported a 7.3% drop in like-for-like sales in UK and Ireland for the 12 weeks to October 23.
