In trading on Friday, shares of Northwest Pipe Co. (NWPX - Get Report) crossed below their last reported book value — defined as common shareholder equity per share — of $27.20, changing hands as low as $26.65 per share. Northwest Pipe Co. shares are currently trading off about 3.1% on the day. The chart below shows the one year performance of NWPX shares, versus its 50 and 200 day moving averages:

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Northwest Pipe Co. Moving Averages Chart

Looking at the chart above, NWPX's low point in its 52 week range is $26.65 per share, with $41.43 as the 52 week high point — that compares with a last trade of $27.02.

According to the ETF Finder at ETF Channel, NWPX makes up 2.68% of the First Trust ISE Water Index Fund ETF ( FIW) which is trading lower by about 1.7% on the day Friday.