D01-F01-A03 · Bar Construction

Volume Bars: watch share thresholds form candles

Move through a dense synthetic trade tape in causal order and observe which whole trade closes each bar. Change the share target to rebuild membership from observation one. No result is a trading signal.

Volume Bars formed candles and closure boundariesCompleted and forming OHLC candles appear above the topic-specific accumulation metric. Full-height boundary lines expose the completed candle on hover or keyboard focus.
Up candleDown candleBar closureSession boundary

Audit ledger

BarSessionTradesOHLCVolumeTopic statisticReason

Keyboard: Right Arrow steps, Left Arrow goes back, Space plays/pauses, and R restores the deterministic checkpoint. Reduced motion changes Play into one step.