TPO and Market Profile fundamentals

A Market Profile reorganises the session by a simple question: how much time did the market spend at each price? Each half-hour gets a letter, each letter is stacked at the prices it touched, and the result is a distribution — usually a bell — that shows where the auction found acceptance and where it was rejected.

The three structures that matter

The point of control — POC — is the price with the most time, the session’s fairest price by the market’s own vote. The value area wraps roughly seventy percent of activity around it: inside is where business was accepted. And single prints — prices touched by only one letter — mark where the market moved so fast that no business was done at all.

Rejection is the useful one. Fair prices attract trade; unfair ones repel it. A long tail of single prints below the low is the auction saying “not here, not today” — and those tails, along with the edges of value, are the levels the next session actually respects.

Reading a finished profile

• Fat symmetrical profile: a balanced day. The market agreed on value and rotated around it.
• Thin elongated profile: a trend day. Value kept migrating and never settled.
• Two distinct bells: a double distribution — the market changed its mind mid-session, and the thin zone between the bells becomes the fault line.
• POC far from the close: the day ended away from its own fair price, leaving unfinished business one way or the other.

Why pair profile with positioning

TPO tells you where the market found value; GEX tells you where hedging pressure lives. When a value-area edge and a gamma wall land on the same price, two unrelated mechanisms are pointing at one level — and levels with two reasons behave better than levels with one.