Two out of the three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 13 points (0.1%) at 17,581 as of Wednesday, Dec. 9, 2015, 11:55 AM ET. The NYSE advances/declines ratio sits at 1,741 issues advancing vs. 1,197 declining with 165 unchanged.

The Industrial Goods sector currently sits up 0.5% versus the S&P 500, which is up 0.1%. On the negative front, top decliners within the sector include Vulcan Materials ( VMC), down 2.5%, Toll Brothers ( TOL), down 2.0%, Martin Marietta Materials ( MLM), down 1.9% and Waste Management ( WM), down 0.7%. Top gainers within the sector include Ametek ( AME), up 1.4%, Rockwell Automation ( ROK), up 1.4%, Emerson Electric ( EMR), up 0.9% and ABB ( ABB), up 0.6%.

TheStreet would like to highlight 3 stocks pushing the sector lower today:

3. General Dynamics ( GD) is one of the companies pushing the Industrial Goods sector lower today. As of noon trading, General Dynamics is down $0.76 (-0.5%) to $141.24 on light volume. Thus far, 406,096 shares of General Dynamics exchanged hands as compared to its average daily volume of 1.4 million shares. The stock has ranged in price between $141.19-$142.63 after having opened the day at $141.90 as compared to the previous trading day's close of $142.00.

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General Dynamics Corporation operates as aerospace and defense company worldwide. It operates through four business groups: Aerospace; Combat Systems; Information Systems and Technology; and Marine Systems. General Dynamics has a market cap of $45.2 billion and is part of the aerospace/defense industry. Shares are up 3.2% year-to-date as of the close of trading on Tuesday. Currently there are 11 analysts that rate General Dynamics a buy, no analysts rate it a sell, and 3 rate it a hold.

TheStreet Ratings rates General Dynamics as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, growth in earnings per share, increase in net income, reasonable valuation levels and largely solid financial position with reasonable debt levels by most measures. We feel its strengths outweigh the fact that the company shows weak operating cash flow. Get the full General Dynamics Ratings Report now.

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2. As of noon trading, Northrop Grumman ( NOC) is down $0.95 (-0.5%) to $187.05 on light volume. Thus far, 348,639 shares of Northrop Grumman exchanged hands as compared to its average daily volume of 1.1 million shares. The stock has ranged in price between $186.20-$188.57 after having opened the day at $187.16 as compared to the previous trading day's close of $188.00.

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Northrop Grumman Corporation, a security company, provides systems, products, and solutions in aerospace, electronics, information systems, and technical service areas to government and commercial customers worldwide. Northrop Grumman has a market cap of $34.3 billion and is part of the aerospace/defense industry. Shares are up 27.6% year-to-date as of the close of trading on Tuesday. Currently there are 5 analysts that rate Northrop Grumman a buy, no analysts rate it a sell, and 7 rate it a hold.

TheStreet Ratings rates Northrop Grumman as a buy. The company's strengths can be seen in multiple areas, such as its solid stock price performance, growth in earnings per share, increase in net income, reasonable valuation levels and notable return on equity. We feel its strengths outweigh the fact that the company shows weak operating cash flow. Get the full Northrop Grumman Ratings Report now.

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1. As of noon trading, Caterpillar ( CAT) is down $0.43 (-0.7%) to $66.11 on average volume. Thus far, 3.8 million shares of Caterpillar exchanged hands as compared to its average daily volume of 6.8 million shares. The stock has ranged in price between $66.05-$67.02 after having opened the day at $66.29 as compared to the previous trading day's close of $66.54.

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Caterpillar Inc. manufactures and sells construction and mining equipment, diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives worldwide. Caterpillar has a market cap of $39.8 billion and is part of the industrial industry. Shares are down 27.3% year-to-date as of the close of trading on Tuesday. Currently there are 2 analysts that rate Caterpillar a buy, 1 analyst rates it a sell, and 13 rate it a hold.

TheStreet Ratings rates Caterpillar as a hold. Among the primary strengths of the company is its reasonable valuation levels, considering its current price compared to earnings, book value and other measures. At the same time, however, we also find weaknesses including deteriorating net income, generally higher debt management risk and poor profit margins. Get the full Caterpillar Ratings Report now.

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If you are interested in one of these 3 stocks, ETFs may be of interest. Investors who are bullish on the industrial goods sector could consider Industrial Select Sector SPDR ( XLI) while those bearish on the industrial goods sector could consider ProShares Short Dow 30 ( DOG).