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The Reconstructed Tape study is the centerpiece of Sierra Trading’s Order Flow Suite—designed for traders who want to see beneath the surface of price and track the real behavior of aggressive participants, large players, and liquidity shifts.

This isn’t a traditional volume tool. It’s a custom-built order flow engine that rebuilds trade data into actionable structure, helping you identify momentum ignition, slippage, and institutional intent with clarity and speed.

Reconstructed Tape Chart

Get a clean, de-noised view of trade activity. This feature rebuilds raw market prints into custom bubbles based on user-defined volume thresholds, aggregating significant transactions—like sweeps and large block trades—into a readable format.

  • Filter noise by focusing only on meaningful size
  • Highlight sweep activity and iceberg absorption
  • See where real participation begins or ends

Slippage Lines

Track how much price moves as size trades. Slippage lines help quantify aggression, showing you whether buyers or sellers are paying up—or getting absorbed—at key levels.

  • Visualize market impact of large orders
  • Differentiate between passive and aggressive activity
  • Spot areas of failed follow-through or hidden liquidity

Delta Flow

This component plots a rolling view of net delta over time, revealing pressure buildups and real-time shifts in control.

  • Identify delta-driven breakouts and traps
  • Monitor rolling volume pressure by side (bid/ask)
  • Track sustained effort vs. absorption across time windows

Volume Levels

Pinpoint where size matters. The Volume Levels tool draws horizontal visualizations of volume clusters, highlighting price levels with meaningful trade concentration.

  • Spot high-volume nodes for support/resistance
  • Detect recent institutional interest zones
  • Integrates cleanly with Delta Flow and Tape Bars
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