The Basic Materials sector (XLB) held steady on a trading day that saw S&P 500 drop 0.1%.

The ETF is trading 98.5% of its 50-day moving average but is 2.2% above its 200-day moving average.

Terra Nitrogen Company L.P (TNH) was a major loser in the sector, falling 7.8% (-$22.90) to close at $269.70 with 233,683 shares moving. The stock traded in a range of $255.02 to $298.50.

Increasing 5.3% (+64 cents) to close at $12.62, GSE Holdings (GSE) was a major gainer in the sector. Today, 122,088 shares traded hands. The stock traded in a range of $11.50 to $12.71.

Vale (VALE) declined 4.8% to close at $22.70, moving below its 50-day moving average of $23.65 and 200-day moving average of $24.26. Quaker Chemical (KWR) rose 1.8% to close at $39.64, crossing its 50-day moving average of $39.52.

Olympic Steel (ZEUS) rose 2.6% to close at $22.73, approaching its 50-day moving average of $23.82. It has also moved closer to its 200-day moving average of $23.19. TPC Group (KS) fell 1.2% to close at $42.10, moving closer to its 50-day moving average of $41.65. Also, the stock moved closer to its 200-day moving average of $17.74.

Arabian American Development Company (ARSD) hit a new 52-week high today, reaching $10.95 to top the previous high of $10.90.

Ivanhoe Mines (IVN) hit a new 52-week low today, hitting $11.88 to fall below the previous low of $12.11.