Stock market showing troubling trend

Traders work on the floor of the New York Stock Exchange.
Lucas Jackson | Reuters

Market rallies in recent days have been categorized by heavy selling, a negative sign for stocks as they struggle to emerge from correction territory.

In the past four trading sessions, buying interest dissipated throughout the day, sending equity benchmarks to the lows of the session.

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Here's a detailed look at the trading action in the past few sessions:

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