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 up 4 points (0.0%) at 14,823 as of Tuesday, April 30, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,672 issues advancing vs. 1,218 declining with 158 unchanged. The Transportation industry currently sits up 0.3% versus the S&P 500, which is unchanged. Top gainers within the industry include Pacific Airport Group ( PAC), up 2.6%, Grupo Aeroportuario del Sureste S.A.B. de ( ASR), up 1.5%, Delta Air Lines ( DAL), up 1.4% and Norfolk Southern Corporation ( NSC), up 0.5%. A company within the industry that fell today was LATAM Airlines Group S.A ( LFL), up 0.41. TheStreet Ratings group would like to highlight 5 stocks pushing the industry higher today: 5. Spirit Airlines ( SAVE) is one of the companies pushing the Transportation industry higher today. As of noon trading, Spirit Airlines is up $1.28 (5.05) to $26.64 on average volume Thus far, 408,001 shares of Spirit Airlines exchanged hands as compared to its average daily volume of 579,300 shares. The stock has ranged in price between $25.52-$26.64 after having opened the day at $25.52 as compared to the previous trading day's close of $25.36. Spirit Airlines, Inc. provides low-fare airline services. It operates approximately 200 daily flights to 50 destinations in the United States, Latin America, and the Caribbean. Spirit Airlines has a market cap of $1.9 billion and is part of the services sector. The company has a P/E ratio of 17.5, below the S&P 500 P/E ratio of 17.7. Shares are up 46.8% year to date as of the close of trading on Monday. TheStreet Ratings rates Spirit Airlines as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and notable return on equity. However, as a counter to these strengths, we find that the company's profit margins have been poor overall. Get the full Spirit Airlines 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.