In trading on Tuesday, shares of Layne Christensen Co. (LAYN) crossed below their last reported book value — defined as common shareholder equity per share — of $10.41, changing hands as low as $10.19 per share. Layne Christensen Co. shares are currently trading down about 1.8% on the day. The chart below shows the one year performance of LAYN shares, versus its 50 and 200 day moving averages:
