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. Two out of the three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading down 23 points (-0.2%) at 15,311 as of Wednesday, Sept. 25, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,760 issues advancing vs. 1,167 declining with 109 unchanged. The Transportation industry currently sits up 0.7% versus the S&P 500, which is up 0.1%. TheStreet would like to highlight 3 stocks pushing the industry lower today: 3. AAR Corporation ( AIR) is one of the companies pushing the Transportation industry lower today. As of noon trading, AAR Corporation is down $2.68 (-8.9%) to $27.25 on heavy volume. Thus far, 840,335 shares of AAR Corporation exchanged hands as compared to its average daily volume of 265,200 shares. The stock has ranged in price between $27.00-$28.63 after having opened the day at $28.41 as compared to the previous trading day's close of $29.93. AAR CORP. provides products and services to aviation, government, and defense markets worldwide. The company operates trough two segments, Aviation Services and Technology Products. AAR Corporation has a market cap of $1.2 billion and is part of the services sector. Shares are up 58.4% year to date as of the close of trading on Tuesday. Currently there are 3 analysts that rate AAR Corporation a buy, no analysts rate it a sell, and none rate it a hold. TheStreet Ratings rates AAR Corporation as a buy. The company's strengths can be seen in multiple areas, such as its solid stock price performance, revenue growth and largely solid financial position with reasonable debt levels by most measures. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full AAR Corporation Ratings Report now. STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.