Each trade counts once, when it is sold or settled, at what it paid. No open position is valued, so the curve only moves on a fill. Drag across the chart to zoom.
Book value: cash plus open positions at cost, fees included; bets are sized on it. If sold now: what selling every open position into the order book right now would fetch after the fee, nothing where nobody bids. A risk figure, not a loss: winners on finished days often have no bid until Polymarket settles them.
Why each buy got its size: the first limit it hit, or the order book itself (no more depth, or the next price no longer clears the edge floor). Capacity is what the book could have taken at that floor. Last 7 days.
Per day: brackets whose edge cleared 1 or 5 cents, and the money their books could have taken at that edge, each counted once at its best moment, against what the busiest book bought.