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das/replay
Early access

Join the private beta.

The desk is opening in waves. Tell us how you trade and we'll wire up your seat — real historical tape, real NBBO, the full cockpit, and the fill engine. No real capital, no live orders; this is a training desk.

Request a seat Wave 01 · open
Or email [email protected]
Inside the beta
  • Real tape

    Tick-level NBBO, trade prints with condition codes, 04:00–20:00 ET — for the actual ticker on the actual day.

  • The cockpit

    Eleven panel types, a Dockview workspace, real OS pop-outs you can drag to a second monitor.

  • The fill engine

    Latency-profiled orders, walk-the-book mechanics, queue position, and a slippage breakdown on every fill.

  • The journal

    Every session lands in the calendar heatmap and the per-trade debrief. The fill log is the lesson.

Training software. Not investment advice, not a brokerage, not for live trading.