Stocks are holding below the unchanged line going into afternoon trading on Tuesday, although they have moved well off their intraday lows.

Airline and health insurance stocks continued to post notable losses, with the Amex Airline Index down 3.6 percent, while the Morgan Stanley Healthcare Payor Index is down 3.3 percent.

At the other end of the spectrum, computer hardware and railroad stocks are some of the only gainers on the day. The Amex Computer Hardware Index is up 1.4 percent and the Dow Jones Railroads Index is up 0.9 percent.

Currently, the Dow is down 40.30 at 7,735.56, the Nasdaq is down 22.40 at 1,533.37, and the S&P 500 is down 6.19 at 816.73.

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