Wyckoff & VSA
How large players build or unload positions inside a range, step by step.
Richard Wyckoff described how big traders (his 'Composite Man') accumulate (buy) or distribute (sell) inside a range before a trend. In accumulation, preliminary support (PS) is the first buying, a selling climax (SC) ends the fall, an automatic rally (AR) sets the top of the range, secondary tests (ST) probe the lows, a spring briefly breaks below the range to take stops and is tested, then a sign of strength (SOS) breaks above the range and the last point of support (LPS) is the pullback before the markup.
Those events fall into five phases: A stops the old trend (PS, SC, AR, ST), B builds the cause inside the range, C is the test (the spring), D is the move out of the range (SOS, LPS) and E is the trend itself. Some ranges have no spring at all (Wyckoff's 'schematic #2'); the last test simply holds above the lows.
Distribution is the mirror image at the top: preliminary supply (PSY), a buying climax (BC), the AR and ST, then upthrusts. An upthrust (UT) is a push above the range in phase B; the upthrust after distribution (UTAD) is the final, phase C false breakout above the range, the mirror of the spring. They are not the same event. A sign of weakness (SOW) and last point of supply (LPSY) then lead into the markdown.
For education only, not financial advice.