Historical chart

The footprint chart is built from the tape, and the tape only reaches so far back. The Historical Chart is the other half of the pair: ordinary OHLC candles fetched from the venue's REST API, which means it goes back as far as the venue keeps data — months and years, not hours.

Footprint vs historical

The two charts answer different questions, and the difference comes from where the data lives.

• The footprint needs every individual trade to know how much volume hit the bid and lifted the ask at each price level. That per-level detail does not exist in a kline, so it can only be built from a live tape or streamed from a history service — which is why footprint history is measured in hours.
• The historical chart needs only open, high, low, close and volume per bar. Every venue serves that from a plain REST endpoint, going back essentially as far as the instrument has traded.

So: footprint for reading the last hours at full orderflow resolution, historical for context — where value has been, what levels matter on the daily, how the current move sits inside the larger structure.

One more practical difference: the footprint chart is locked to the primary instrument. Each historical chart has its own symbol selector — it starts on the primary but can be switched independently, so you can keep a weekly ETH chart open while trading BTC orderflow.

Intervals and lookback

The interval selector runs from 1m to 1M (monthly). There is no fixed window: the chart loads a first page and the Load more button in the toolbar fetches older candles on demand, page by page, for as far back as the venue's API serves them.

TPO view

The toolbar switches the panel between two view modes: Candlesticks and TPO.

TPO — market profile — rebuilds each session as a distribution of time spent at price. Every period of the session gets a letter (or a block, in block style), stacked at each price the period touched. What that surfaces:

• Point of control — the price with the most time spent, the session's fairest price
• Value area — the band holding the bulk of the session's activity
• Single prints — prices touched by only one period, where the market moved too fast to build acceptance

Sessions can be built daily, weekly or monthly, with a multiplier for composite profiles, and Load more works here too — it fetches older sessions on demand.

Overlays

The indicator set is aimed at higher-timeframe context:

• VWAPs — daily, weekly, monthly, quarterly, session-anchored and rolling, each with optional deviation bands
• Volume profile — session profiles behind the bars, plus a fixed-range volume profile as a drawing
• Moving averages and EMA clouds — the same Ripster-style fast/slow ribbons as the footprint chart

Drawing tools are shared with the footprint chart, and every overlay is per chart instance — two historical charts can carry completely different setups.