Auction Market Theory

Auction market theory says that a market advertises prices in both directions, finds where two-sided trade is willing to occur, and stays there until a change in supply or demand forces it to search again. Balance is a range where value is accepted. Imbalance is a directional search, a trend, in which value is being rejected and rebuilt higher or lower. Excess is the tail of the auction, a price that was advertised and rejected, often the high or low of a balanced day. The theory sits underneath market profile and is broader than any one graphic. You can use it with bars alone. A range is balance. A break and a hold is the start of imbalance. A wick beyond a range that returns is excess, a rejected advertisement.

Classify the current auction before you pick a tactic. In balance, fade the excess and target value, with a stop beyond the excess. In imbalance, trade with the search and buy pullbacks, and do not fade the extension merely because it is far from yesterday's value. The transition is the hard part and the whole game. A close outside a balance, with follow-through, is a candidate imbalance. A close back inside is a failed search, and the balance is intact. Traders who always fade and traders who always chase are each correct in one regime and inventory in the other. The theory's value is the requirement to name the regime. It does not name it for you with certainty.

Ask three questions. Where is value, the recent area of two-sided trade. Is the market inside it or outside it. If outside, is it accepting the new price or rejecting it. If you cannot answer, you do not have an auction read, and a pattern trade is a guess about which regime you are in. Use the answers to choose between the range-trading page and the trend-following page. Auction theory is the switch, not a third set of entries. Excess that lines up with a known level is a better fade than excess in the middle of an empty chart.

Declaring balance because you want to fade, or imbalance because you want to chase. Also treating yesterday's value as sacred after the market has built a day of acceptance somewhere else. And using the word "unfair" price as if the theory had a moral. Prices outside value are not unfair. They are the search. They become the new fair price if the auction accepts them.

Auction market theory is a description, not a timing model. It does not say how far an imbalance will run or how long a balance will last. Multiple timeframes are in different states at once: a daily balance can contain an intraday imbalance, and trading the wrong degree feels like the theory failed. It also assumes a two-sided auction. A halted name, a locked limit, or a one-sided news open is an auction that has stopped advertising. The theory resumes when two-sided trade resumes. Until then, reduce size or stand aside.