Previous Time Point of Control (ptPOC)

Previous Time Point of Control (ptPOC) is the Time Point of Control from the immediately prior completed TPO profile, most commonly the previous session or previous day. It is the single price level where the market spent the most time in that prior profile, measured as the row with the highest count of TPO letters or blocks.

A TPO profile reorganizes market activity by time spent at price rather than by traded volume. The tPOC is the price that appeared most often in that profile, which makes it the most accepted time-based price of that period. ptPOC is simply that prior completed tPOC carried forward into the current session so traders can compare current price to the previous session’s main area of time-based acceptance.

• Choose the prior completed TPO profile window, such as the previous session or previous day.
• Split that profile into equal time blocks, commonly 30 minutes, though platforms allow other block sizes.
• Build the price rows using the selected row-size or ticks-per-row setting, then count how many TPO letters or blocks printed in each row. The row with the highest count becomes that profile’s tPOC.

Note: When that completed level is projected into the current session, it becomes ptPOC. Like other TPO-derived levels, it can change if the session template, block size, row size, or tick-size settings change.

ptPOC is commonly used in three ways:

• As a structural support/resistance reference alongside prior tVAH and tVAL.
• As a “value center” reference, where price may revisit a previously high-acceptance zone during balanced conditions.
• As a context marker for balance versus imbalance, since repeated interaction with prior accepted prices can suggest rotation, while clean movement away from them can suggest value migration.

• Extended ptPOC: platforms can extend the prior completed POC line or marking beyond the profile period for future reference.
• Alerts on extended POC interaction: Coinwise supports alerts when price crosses extended POC levels from completed profiles.
• Optional volume overlay: many TPO tools can display a volume profile next to the TPO profile, which helps compare time-based and volume-based significance at the same prices, even though they remain different measurements.

• Defining ptPOC as “time and volume.” ptPOC is time-based; volume-based POC is a separate concept.
• Changing session templates, start times, block sizes, or row-size settings and expecting the same ptPOC. Misconfigured tick size or price increment can distort the TPO profile and shift derived levels.
• Treating ptPOC as a guaranteed “magnet.” It is better used as a historical reference and context tool than as a standalone prediction.