UK small caps close down 0.1 percent, outperforming a 0.5 percent decline on both the blue chip FTSE 100 index and the mid-caps .
Shares in Carclo add 6.2 percent in four times their average daily volumes after the British specialty plastics company forecast a "much stronger second half" for operating profit.
On the downside, electrical components maker XP Power Ltd
falls 6.3 percent after reporting an 11 percent year-on-year decline in nine month revenues and saying that global demand for its customers' products remains subdued.
Investec and Peel Hunt both cut XP's price targets after the trading update.
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