Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model One out of the three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading down 31 points (-0.2%) at 14,506 as of Friday, April 19, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 2,094 issues advancing vs. 778 declining with 149 unchanged. The Basic Materials sector currently sits up 0.2% versus the S&P 500, which is up 0.7%. Top gainers within the sector include LyondellBasell Industries ( LYB), up 3.0%, Petroleo Brasileiro SA Petrobras ( PBR.A), up 3.1%, Energy Transfer Equity ( ETE), up 2.5%, Sherwin-Williams Company ( SHW), up 2.3% and Plains All American Pipeline ( PAA), up 2.0%. On the negative front, top decliners within the sector include Peabody Energy Corporation ( BTU), down 6.55, Apache Corporation ( APA), down 2.46, Devon Energy ( DVN), down 2.66, Suncor Energy ( SU), down 1.67 and Schlumberger ( SLB), down 1.31. TheStreet Ratings group would like to highlight 5 stocks pushing the sector higher today: 5. Celanese Corporation ( CE) is one of the companies pushing the Basic Materials sector higher today. As of noon trading, Celanese Corporation is up $4.16 (9.85) to $46.39 on heavy volume Thus far, 3.5 million shares of Celanese Corporation exchanged hands as compared to its average daily volume of 1.4 million shares. The stock has ranged in price between $46.08-$49.18 after having opened the day at $48.18 as compared to the previous trading day's close of $42.23. Celanese Corporation engages in manufacture and sale of value-added chemicals, thermoplastic polymers, and other chemical-based products. The company operates in four segments: Advanced Engineered Materials, Consumer Specialties, Industrial Specialties, and Acetyl Intermediates. Celanese Corporation has a market cap of $6.8 billion and is part of the chemicals industry. The company has a P/E ratio of 11.1, below the S&P 500 P/E ratio of 17.7. Shares are down 5.2% year to date as of the close of trading on Thursday. TheStreet Ratings rates Celanese Corporation as a buy. The company's strengths can be seen in multiple areas, such as its notable return on equity and increase in stock price during the past year. We feel these strengths outweigh the fact that the company shows weak operating cash flow. Get the full Celanese Corporation Ratings Report now. Exclusive Offer: Jim Cramer's 'go-to' small/mid-cap guru Bryan Ashenberg only buys stocks he thinks could return 50-100%. See his top picks for 14-days FREE.