All three major indices are trading down today with the Dow Jones Industrial Average ( ^DJI) trading down 163 points (-1.0%) at 16,122 as of Thursday, Oct. 1, 2015, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,041 issues advancing vs. 1,943 declining with 144 unchanged.

The Real Estate industry currently sits down 0.5% versus the S&P 500, which is down 0.7%. On the negative front, top decliners within the industry include CoStar Group ( CSGP), down 2.3%, CBRE Group ( CBG), down 2.1%, Corrections Corp of America ( CXW), down 2.1%, Jones Lang LaSalle ( JLL), down 1.2% and AvalonBay Communities ( AVB), down 1.1%. Top gainers within the industry include New York REIT ( NYRT), up 3.4%, Icahn ( IEP), up 1.5%, Kennedy-Wilson Holdings ( KW), up 1.4%, Forest City ( FCE.A), up 1.2% and General Growth Properties ( GGP), up 0.7%.

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

3. Realty Income ( O) is one of the companies pushing the Real Estate industry lower today. As of noon trading, Realty Income is down $0.29 (-0.6%) to $47.10 on light volume. Thus far, 496,369 shares of Realty Income exchanged hands as compared to its average daily volume of 1.7 million shares. The stock has ranged in price between $47.02-$47.62 after having opened the day at $47.62 as compared to the previous trading day's close of $47.39.

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Realty Income Corporation is a publicly traded real estate investment trust. It invests in the real estate markets of the United States. The firm makes investments in commercial real estate. Realty Income Corporation was founded in 1969 and is based in Escondido, California. Realty Income has a market cap of $11.1 billion and is part of the financial sector. The company has a P/E ratio of 42.8, above the S&P 500 P/E ratio of 23.7. Shares are down 0.7% year-to-date as of the close of trading on Wednesday. Currently there are 2 analysts that rate Realty Income a buy, 2 analysts rate it a sell, and 9 rate it a hold.

TheStreet Ratings rates Realty Income as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, solid stock price performance, good cash flow from operations, expanding profit margins and growth in earnings per share. Although the company may harbor some minor weaknesses, we feel they are unlikely to have a significant impact on results. Get the full Realty Income Ratings Report now.

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2. As of noon trading, Weyerhaeuser ( WY) is down $0.58 (-2.1%) to $26.76 on light volume. Thus far, 1.2 million shares of Weyerhaeuser exchanged hands as compared to its average daily volume of 3.7 million shares. The stock has ranged in price between $26.75-$27.62 after having opened the day at $27.62 as compared to the previous trading day's close of $27.34.

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Weyerhaeuser Co. is a real estate investment trust. It primarily invests in United States. The firm operates under four business segments, timberlands, wood products, cellulose fibers and real estate. It owns timberlands primarily in the U.S and has long-term licenses in Canada. Weyerhaeuser has a market cap of $13.9 billion and is part of the industrial goods sector. The company has a P/E ratio of 24.6, above the S&P 500 P/E ratio of 23.7. Shares are down 23.8% year-to-date as of the close of trading on Wednesday. Currently there are 6 analysts that rate Weyerhaeuser a buy, 2 analysts rate it a sell, and 2 rate it a hold.

TheStreet Ratings rates Weyerhaeuser as a buy. The company's strengths can be seen in multiple areas, such as its reasonable valuation levels, good cash flow from operations and notable return on equity. We feel its strengths outweigh the fact that the company has had sub par growth in net income. Get the full Weyerhaeuser Ratings Report now.

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1. As of noon trading, Zillow Group ( ZG) is down $1.30 (-4.5%) to $27.44 on light volume. Thus far, 575,734 shares of Zillow Group exchanged hands as compared to its average daily volume of 3.7 million shares. The stock has ranged in price between $27.01-$28.83 after having opened the day at $28.68 as compared to the previous trading day's close of $28.73.

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Zillow Group, Inc. operates real estate and home-related information marketplaces on mobile and the Web in the United States. It offers a portfolio of brands and products to help people find vital information about homes, and connect with local professionals. Zillow Group has a market cap of $1.5 billion and is part of the financial sector. Shares are down 13.0% year-to-date as of the close of trading on Wednesday. Currently there are 4 analysts that rate Zillow Group a buy, 2 analysts rate it a sell, and 8 rate it a hold.

TheStreet Ratings rates Zillow Group 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 expanding profit margins. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and a generally disappointing performance in the stock itself. Get the full Zillow Group 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 real estate industry could consider iShares Dow Jones US Real Estate ( IYR) while those bearish on the real estate industry could consider ProShares Short Real Estate Fund ( REK).