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 down today with the Dow Jones Industrial Average ( ^DJI) trading down 77 points (-0.5%) at 16,791 as of Thursday, June 26, 2014, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,231 issues advancing vs. 1,744 declining with 167 unchanged. The Basic Materials sector currently sits down 0.1% versus the S&P 500, which is down 0.4%. Top gainers within the sector include Vale ( VALE), up 2.9%, Schlumberger ( SLB), up 2.3%, China Petroleum & Chemical ( SNP), up 2.2%, Valero Energy ( VLO), up 2.2% and PetroChina ( PTR), up 1.9%. On the negative front, top decliners within the sector include Turquoise Hill Resources ( TRQ), down 5.0%, Pioneer Natural Resources ( PXD), down 3.0%, Total ( TOT), down 1.3%, Devon Energy ( DVN), down 1.3% and EOG Resources ( EOG), down 0.9%. TheStreet would like to highlight 3 stocks pushing the sector higher today: 3. POSCO ( PKX) is one of the companies pushing the Basic Materials sector higher today. As of noon trading, POSCO is up $1.66 (2.3%) to $74.64 on average volume. Thus far, 92,445 shares of POSCO exchanged hands as compared to its average daily volume of 226,100 shares. The stock has ranged in price between $74.32-$75.08 after having opened the day at $74.53 as compared to the previous trading day's close of $72.98. POSCO, together with its subsidiaries, manufactures and sells steel rolled products and plates. It operates through four segments: Steel, Trading, Construction, and Others. POSCO has a market cap of $22.9 billion and is part of the metals & mining industry. Shares are down 6.4% year-to-date as of the close of trading on Wednesday. Currently there is 1 analyst who rates POSCO a buy, no analysts rate it a sell, and none rate it a hold. TheStreet Ratings rates POSCO as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, reasonable valuation levels and increase in stock price during the past year. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, poor profit margins and weak operating cash flow. Get the full POSCO 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.