In trading on Friday, construction materials & machinery shares were relative leaders, up on the day by about 3.9%. Leading the group were shares of U S G , up about 6.9% and shares of Cemex Sab DE CV up about 6.1% on the day.

Also showing relative strength are semiconductors shares, up on the day by about 3.3% as a group, led by Kulicke & Soffa Industries (nasdaq: KLIC - news - people ) , trading higher by about 11.3% and Semileds , trading higher by about 8.9% on Friday.

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