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Use Proper Screeners

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Some screeners on the market review specific stocks that are growing during the after-hours period. The NASDAQ After-Hours Most Active listing is a great example of this. The MarketWatch After-Hours Screener is also useful for many stock indexes. These offer details on how stocks are moving based on which stocks are traded the most after the market closes for the day. The largest movers are based on the percentage totals that stocks move up.