Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 62 points (0.4%) at 17,123 as of Wednesday, July 16, 2014, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,670 issues advancing vs. 1,271 declining with 202 unchanged. The Chemicals industry currently sits up 0.4% versus the S&P 500, which is up 0.4%. A company within the industry that increased today was Praxair ( PX), up 0.5%. TheStreet would like to highlight 3 stocks pushing the industry higher today: 3. Sigma-Aldrich ( SIAL) is one of the companies pushing the Chemicals industry higher today. As of noon trading, Sigma-Aldrich is up $0.99 (1.0%) to $102.94 on average volume. Thus far, 273,229 shares of Sigma-Aldrich exchanged hands as compared to its average daily volume of 521,600 shares. The stock has ranged in price between $102.06-$102.98 after having opened the day at $102.06 as compared to the previous trading day's close of $101.95. Sigma-Aldrich Corporation, a life science and high technology company, develops, manufactures, purchases, and distributes various chemicals, biochemicals, and equipment worldwide. Sigma-Aldrich has a market cap of $12.1 billion and is part of the basic materials sector. Shares are up 8.4% year-to-date as of the close of trading on Tuesday. Currently there are 2 analysts who rate Sigma-Aldrich a buy, 1 analyst rates it a sell, and 9 rate it a hold. TheStreet Ratings rates Sigma-Aldrich as a buy. The company's strengths can be seen in multiple areas, such as its increase in net income, revenue growth, largely solid financial position with reasonable debt levels by most measures, good cash flow from operations and growth in earnings per share. We feel these strengths outweigh the fact that the company has had somewhat disappointing return on equity. Get the full Sigma-Aldrich 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.