In trading on Friday, shares of Layne Christensen Co. (LAYN) crossed below their last reported book value — defined as common shareholder equity per share — of $15.86, changing hands as low as $15.77 per share. Layne Christensen Co. shares are currently trading down about 4.4% on the day. The chart below shows the one year performance of LAYN shares, versus its 50 and 200 day moving averages:

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Layne Christensen Co. Moving Averages Chart

Looking at the chart above, LAYN's low point in its 52 week range is $15.77 per share, with $25.11 as the 52 week high point — that compares with a last trade of $15.81.

According to the ETF Finder at ETF Channel, LAYN makes up 3.25% of the Lux Nanotech Portfolio ETF ( PXN) which is trading up by about 1.2% on the day Friday.