NEW YORK ( TheStreet) -- Ross Stores (ROST) - Get Report took a major hit on Friday following the retailer's earning beat. Investors pushed shares to a gap-higher open Friday on the news, but the early momentum quickly gave way to a deep selloff. Disappointing guidance turned the early bullish action into an ugly breakdown. At the close, ROST was off 4.5% and was the worst performer in the S&P 500. Downside trade surged to its heaviest level since last July as shares fell below key support just below $100.


Heading into Thursday afternoon's earnings report, ROST was tracing out a tight consolidation pattern between $105 and $99. This sideways action began shortly after the stock reached new 52-week highs on March 24. During this process, Ross held key support near the stock's powerful earnings-inspired Feb. 27 breakout gap.

With this support zone now taken out, ROST is likely headed lower in the near term. A drop down to the 200-day moving average would not be a surprise. This area, just above $90, also includes the stock's 2015 low set back on Feb. 2.

For patient investors, a continued drift down to this area would provide a very low-risk entry opportunity. ROST will likely return to oversold territory here and will have fallen over 17% from its March peak.

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At the time of publication, Morrow had no positions in the stocks mentioned.