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One out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading up 5 points (0.0%) at 16,485 as of Friday, Dec. 27, 2013, 11:55 AM ET. The NYSE advances/declines ratio sits at 1,370 issues advancing vs. 1,569 declining with 149 unchanged.

The Chemicals industry currently sits up 0.4% versus the S&P 500, which is unchanged.

TheStreet would like to highlight 4 stocks pushing the industry higher today:

4. Westlake Chemical Corporation ( WLK) is one of the companies pushing the Chemicals industry higher today. As of noon trading, Westlake Chemical Corporation is up $2.36 (2.0%) to $120.66 on average volume. Thus far, 180,930 shares of Westlake Chemical Corporation exchanged hands as compared to its average daily volume of 354,000 shares. The stock has ranged in price between $119.38-$121.43 after having opened the day at $119.46 as compared to the previous trading day's close of $118.30.

Westlake Chemical Corporation manufactures and markets basic chemicals, vinyls, polymers, and fabricated building products. It operates in two segments, Olefins and Vinyls. Westlake Chemical Corporation has a market cap of $7.9 billion and is part of the basic materials sector. Shares are up 49.2% year to date as of the close of trading on Thursday. Currently there are 2 analysts that rate Westlake Chemical Corporation a buy, 2 analysts rate it a sell, and 4 rate it a hold.

TheStreet Ratings rates Westlake Chemical Corporation as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, notable return on equity, good cash flow from operations and solid stock price performance. We feel these strengths outweigh the fact that the company shows low profit margins. Get the full Westlake Chemical Corporation Ratings Report now.

3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.

3. As of noon trading, Sigma-Aldrich Corporation ( SIAL) is up $1.03 (1.1%) to $93.20 on average volume. Thus far, 241,861 shares of Sigma-Aldrich Corporation exchanged hands as compared to its average daily volume of 589,000 shares. The stock has ranged in price between $92.22-$93.78 after having opened the day at $92.51 as compared to the previous trading day's close of $92.17.

Sigma-Aldrich Corporation, a life science and high technology company, develops, manufactures, purchases, and distributes various chemicals, biochemicals, and equipment worldwide. Sigma-Aldrich Corporation has a market cap of $11.0 billion and is part of the basic materials sector. Shares are up 25.3% year to date as of the close of trading on Thursday. Currently there are 3 analysts that rate Sigma-Aldrich Corporation a buy, 3 analysts rate it a sell, and 7 rate it a hold.

TheStreet Ratings rates Sigma-Aldrich Corporation as a buy. The company's strengths can be seen in multiple areas, such as its increase in stock price during the past year, growth in earnings per share, revenue growth, largely solid financial position with reasonable debt levels by most measures and good cash flow from operations. We feel these strengths outweigh the fact that the company has had somewhat disappointing return on equity. Get the full Sigma-Aldrich Corporation Ratings Report now.

3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.

2. As of noon trading, Ashland ( ASH) is up $0.88 (0.9%) to $97.46 on light volume. Thus far, 54,162 shares of Ashland exchanged hands as compared to its average daily volume of 724,700 shares. The stock has ranged in price between $97.02-$97.68 after having opened the day at $97.58 as compared to the previous trading day's close of $96.58.

Ashland Inc. operates as a specialty chemicals company worldwide. The company operates through four segments: Ashland Specialty Ingredients, Ashland Water Technologies, Ashland Performance Materials, and Ashland Consumer Markets. Ashland has a market cap of $7.5 billion and is part of the basic materials sector. Shares are up 20.1% year to date as of the close of trading on Thursday. Currently there are 4 analysts that rate Ashland a buy, no analysts rate it a sell, and 5 rate it a hold.

TheStreet Ratings rates Ashland as a buy. The company's strengths can be seen in multiple areas, such as its increase in stock price during the past year, compelling growth in net income, attractive valuation levels, expanding profit margins and good cash flow from operations. Although no company is perfect, currently we do not see any significant weaknesses which are likely to detract from the generally positive outlook. Get the full Ashland Ratings Report now.

3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.

1. As of noon trading, Potash Corporation of Saskatchewan ( POT) is up $0.23 (0.7%) to $33.09 on light volume. Thus far, 1.9 million shares of Potash Corporation of Saskatchewan exchanged hands as compared to its average daily volume of 6.5 million shares. The stock has ranged in price between $32.75-$33.17 after having opened the day at $32.81 as compared to the previous trading day's close of $32.86.

Potash Corporation of Saskatchewan Inc., together with its subsidiaries, produces and sells fertilizers and related industrial and feed products primarily in the United States and Canada. The company mines and produces potash, which is used as fertilizer. Potash Corporation of Saskatchewan has a market cap of $28.1 billion and is part of the basic materials sector. Shares are down 19.2% year to date as of the close of trading on Thursday. Currently there are 4 analysts that rate Potash Corporation of Saskatchewan a buy, 1 analyst rates it a sell, and 13 rate it a hold.

TheStreet Ratings rates Potash Corporation of Saskatchewan as a hold. The company's strengths can be seen in multiple areas, such as its expanding profit margins and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including feeble growth in the company's earnings per share, deteriorating net income and weak operating cash flow. Get the full Potash Corporation of Saskatchewan Ratings Report now.

3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.

If you are interested in one of these 4 stocks, ETFs may be of interest. Investors who are bullish on the chemicals industry could consider Materials Select Sector SPDR ( XLB) while those bearish on the chemicals industry could consider ProShares Short Basic Materials Fd ( SBM).

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