Stocks are seeing continued weakness going into the final hour of trading on Tuesday, although selling pressure has waned significantly from earlier in the session.

Real estate and health insurance stocks are posting notable losses, with the Morgan Stanley REIT Index down 4.1 percent and the Morgan Stanley Healthcare Payor Index down 3.3 percent.

Meanwhile, railroads and computer hardware stocks are posting some of the biggest gains of the session. The Dow Jones Railroads Index is up 1.7 percent and the Amex Computer Hardware Index is up 1.3 percent.

Currently, the Dow is down 43.89 at 7,731.97, the Nasdaq is down 24.22 at 1,531.55, and the S&P 500 is down 7.59 at 815.33.

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