In trading on Friday, shares of US Silica Holdings, Inc. ( SLCA) crossed below their 200 day moving average of $26.59, changing hands as low as $24.28 per share. US Silica Holdings, Inc. shares are currently trading off about 8.2% on the day. The chart below shows the one year performance of SLCA shares, versus its 200 day moving average:
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Looking at the chart above, SLCA's low point in its 52 week range is $17.05 per share, with $37.14 as the 52 week high point — that compares with a last trade of $29.41. According to the ETF Finder at ETF Channel, SLCA makes up 2.67% of the SPDR S&P Metals and Mining ETF ( XME) which is trading lower by about 0.5% on the day Friday. 
