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 11 points (0.1%) at 15,533 as of Tuesday, July 30, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,505 issues advancing vs. 1,392 declining with 116 unchanged. The Financial sector currently is unchanged today versus the S&P 500, which is up 0.2%. Top gainers within the sector include Western Union Company ( WU), up 8.9%, American Capital Agency ( AGNC), up 5.8%, Orix Corporation ( IX), up 5.1%, Affiliated Managers Group ( AMG), up 3.4% and General Growth Properties ( GGP), up 2.2%. On the negative front, top decliners within the sector include HDFC Bank ( HDB), down 5.1%, Deutsche Bank ( DB), down 5.1%, Royal Bank of Scotland Group (The ( RBS), down 3.5%, Toronto-Dominion Bank ( TD), down 2.0% and Bank of Montreal ( BMO), down 1.3%. TheStreet would like to highlight 5 stocks pushing the sector higher today: 5. Aon plc ( AON) is one of the companies pushing the Financial sector higher today. As of noon trading, Aon plc is up $1.04 (1.6%) to $67.39 on light volume. Thus far, 489,649 shares of Aon plc exchanged hands as compared to its average daily volume of 1.5 million shares. The stock has ranged in price between $66.67-$67.60 after having opened the day at $66.80 as compared to the previous trading day's close of $66.36. Aon plc provides risk management services, insurance and reinsurance brokerage, and human resource consulting and outsourcing services worldwide. Aon plc has a market cap of $20.9 billion and is part of the insurance industry. Shares are up 21.4% year to date as of the close of trading on Monday. Currently there are 5 analysts that rate Aon plc a buy, no analysts rate it a sell, and 9 rate it a hold. TheStreet Ratings rates Aon plc as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, good cash flow from operations, increase in net income, notable return on equity and solid stock price performance. We feel these strengths outweigh the fact that the company shows low profit margins. Get the full Aon plc 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.