In trading on Wednesday, shares of L.B. Foster Co. ( FSTR) crossed below their 200 day moving average of $49.10, changing hands as low as $49.00 per share. L.B. Foster Co. shares are currently trading off about 3.8% on the day. The chart below shows the one year performance of FSTR shares, versus its 200 day moving average:Looking at the chart above, FSTR's low point in its 52 week range is $40.09 per share, with $56.72 as the 52 week high point — that compares with a last trade of $48.98. According to the ETF Finder at ETF Channel, FSTR makes up 2.69% of the First Trust RBA American Industrial Renaissance ETF ( AIRR) which is trading lower by about 1.5% on the day Wednesday.