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Why Twitter, Continental Resources and Seattle Genetics are 3 of Today’s Worst Stocks

Continental Resources, Twitter, and Seattle Genetics may not have deserved to be Monday's punching bags, but that didn't prevent it from happening.

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Healthcare stocks rose 0.6% on Wall Street so far on Monday.

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Healthcare stocks rose 0.8% on Wall Street on Friday.

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More broadly, the Dow Jones Industrial Average rose 0.2%, the Nasdaq increased 0.2% and the S&P 500 climbed 0.2%.

10 Biotechnology Stocks to Buy Now

The grades of 10 biotechnology stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an "A" ("strong buy") or "B" overall ("buy") rating.

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Healthcare stocks finished up broadly on Wall Street on Tuesday, with the sector seeing an overall increase of 1.1%.

11 Biotechnology Stocks to Buy Now

This week, 11 biotechnology stocks are improving their overall rating on Portfolio Grader. Each of these rates an "A" ("strong buy") or "B" overall ("buy").

15 Biotechnology Stocks to Buy Now

The grades of 15 biotechnology stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an "A" ("strong buy") or "B" overall ("buy").

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Healthcare stocks rose broadly on Wall Street today, with the sector seeing an overall increase of 1.6%.

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Healthcare stocks rose 0.3% on Wall Street on Thursday morning.

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More broadly, the Dow Jones Industrial Average stayed level, the Nasdaq climbed 0.1% and the S&P 500 remained flat.

11 Biotechnology Stocks to Buy Now

This week, 11 biotechnology stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an "A" ("strong buy") or "B" overall ("buy").

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Healthcare stocks rose 0.5% on Wall Street on Thursday morning.

9 Biotechnology Stocks to Buy Now

This week, nine biotechnology stocks are improving their overall rating on Portfolio Grader. Each of these rates an "A" ("strong buy") or "B" overall ("buy").

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Healthcare stocks finished flat today on Wall Street.

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Healthcare stocks rose 0.9% on Wall Street on Friday morning.

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Healthcare stocks remained flat so far on Wednesday on Wall Street.

9 Biotechnology Stocks to Buy Now

The grades of nine biotechnology stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an "A" ("strong buy") or "B" overall ("buy").

Hottest Healthcare Stocks Now – ACHC BSX CBST GSK

Healthcare stocks fell broadly on Wall Street so far on Wednesday, with the sector seeing an overall decline of 0.4%.