In the 1960s and 1970s, former institutional syndicate trader Tom Williams recognized that Wyckoff’s principles could be systematized. He automated these concepts, tracking the specific relationship between the bar spread and transaction volume. This formalized system became known globally as Volume Spread Analysis. The Three Core Pillars of VSA
This occurs at the peak of a bull market. The public is greedy and eager to buy. Smart Money takes this opportunity to sell (distribute) their holdings at retail prices to the uninformed public. This results in wide trading ranges with high volume but little net upward price progress. Phase 4: Markdown
What do you prefer to trade? (e.g., 5-minute, 1-hour, Daily)
Unlike indicators that lag, VSA provides a real-time assessment of market mechanics. It assumes that market makers (Smart Money) must generate high volume to move the market in their desired direction, and VSA helps you track these movements. The Core Pillars of VSA VSA is built on understanding three primary components: volume spread analysis abcs of vsa
Defining what constitutes "high" or "low" volume requires practice and historical context. It is not as simple as waiting for a line to cross a specific mathematical threshold.
VSA gives highly accurate structural invalidation points. If you enter a long position based on a "No Supply Test" or "Stopping Volume" bar, your structural stop-loss should be placed just below the low of that specific foundational bar. If the market breaks below that point, it means supply is still present, and your trade thesis is invalidated. Conclusion: Developing a Professional Market Lens
Measure the width of the spread (narrow, average, or wide), identify where the close sits (upper, middle, or lower third), and check the volume relative to recent bars. In the 1960s and 1970s, former institutional syndicate
A narrow-spread down-bar on volume lower than the previous two bars. This proves that there is no more selling pressure left in the market, clearing the path for an upward move. Step-by-Step VSA Analysis Workflow
The total amount of activity (shares, contracts, or lots) traded during a specific price bar. This represents the amount of effort the market is putting in.
If you want to go long, look for a or a Spring near the support floor. The Three Core Pillars of VSA This occurs
As the market moves through these phases, VSA helps identify specific events that signal shifts in the supply-demand balance. Modern charting software often labels these key events automatically.
Volume represents the total amount of activity or shares traded during a specific time frame. In VSA, volume is viewed as the put forth by market participants. High volume indicates heavy professional activity, while low volume indicates a lack of interest from the Smart Money. 2. The Spread