Time Point of Control (tPOC)

Time Point of Control (tPOC) is the price level where the market spent the most time during a specified TPO (Market Profile) period, measured as the row with the highest count of TPO letters/blocks.

A TPO chart turns a session (or other chosen period) into “time-at-price.” Each letter/block represents a time segment that is traded at a price. The tPOC is the price that shows up the most, meaning price revisited/accepted that level more than any other during the profile period.

• Choose your profile period (session/day/week or another consistent range).
• Split that period into equal time blocks (commonly 30 minutes, but configurable).
• Build price rows (bins), then count how many TPO letters/blocks printed in each row.
• The row with the highest TPO count is the tPOC.

Note: If there’s a tie, some platforms select the row closest to the middle of the profile (and may use additional tie-break rules).

tPOC is commonly used in three ways:

• As a structural support/resistance reference alongside VAH/VAL within TPO analysis.
• As a “value center” reference: price may revisit high-activity areas, and repeated interaction across profiles can increase the level’s significance.
• As a context tool: whether the profile is balanced (rotation around value) or imbalanced (value migrating) is often assessed using how POC/Value Area behave over time.

• Extended tPOC: the platform can extend the POC line/marking beyond the period, sometimes until price intersects again.
• Migrating/developing tPOC: some platforms visualize how POC changes during the session as time-at-price builds.
• Optional volume overlay: many TPO tools can show a volume profile beside TPO, helping corroborate significance at specific prices (but it remains a different measurement than time).

• Defining tPOC as “time and volume.” Time-based POC is time-at-price; volume-based POC is a separate concept.
• Changing session templates, start times, or block sizes and expecting the same tPOC. tPOC is only meaningful when the profile window is consistent.
• Misconfigured tick size / price increment (binning): incorrect settings can distort the profile and shift derived levels.
• Treating tPOC as a guaranteed “magnet.” Documentation frames gravitation as a tendency/possibility, not a certainty.