The stock is currently retesting its 50-day average, which has provided support on pullbacks since early September.

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This past week, the index came close to retesting the breakout level again, and a strong weekly close is needed to improve the technical outlook.

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It is now retesting the lows from the middle of April.

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And testing, testing, and retesting, to make sure they are correct.

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Advances in DNA technology have allowed investigators to solve cases by retesting evidence, but some cases get cracked through innovation or by detectives thinking outside the box.

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