Flat Base
Also called: Darvas box, base
A tight, sideways consolidation in a narrow price range after an advance — a quiet base from which a stock can launch its next leg up.
A flat base (or Darvas box) is a horizontal range where price moves between roughly parallel support and resistance for several weeks, usually correcting less than ~15%. The tightness signals that supply and demand are in balance and big sellers have stepped aside.
The breakout above the top of the box is the entry; the longer and tighter the base, the more meaningful the breakout. Volume drying up inside the base and surging on the break is the textbook tell.
On StockSetups
Flat bases / Darvas boxes are part of the StockSetups pattern set; when one breaks, the signal moves into the 'broke out' lane on the free board so even free users can see fresh breakouts from tight bases.
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