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Quick answer

A sweep is a large order filled across multiple exchanges in rapid succession, usually to grab available liquidity quickly.

Also called: sweep, multi-exchange sweep.

Visual explainer

Visual explainer
Several exchange boxes feeding arrows into a single sweep event box.Options sweep — multi-exchange urgencyNYSECBOENASDAQPHLXISEOne sweepmany venuessame momentUrgency to fill size — not always a directional oracle

A sweep hits multiple exchanges nearly at once to fill size quickly. That is urgency routing, not a guaranteed directional signal.

Full definition

Unlike a single-exchange block, a sweep takes liquidity wherever it sits and shows up as multiple prints scanners roll into one event. Urgency can mean conviction or simply size that needs a fill. Read sweeps with side, premium, and whether they stack into a theme.

How it shows up in TradingFlow

  • Option Trades

    Filter by trade type (block vs sweep) on the live tape.

How to read it

  1. Filter Trade type → Sweep when hunting urgency prints.
  2. Check aggressor side and whether sweeps cluster at one strike.
  3. Validate with Rank Contracts for repeated sweep interest.

Who this is for

Flow traders who filter trade type to separate patient blocks from multi-venue urgency.

Common mistakes

  • Assuming every sweep is smart-money directional.
  • Missing that sweeps can be one leg of a spread.

Full tutorial chapter →

Frequently asked questions

Sweep vs block: which is more important?
Neither is universally better. Blocks show size in one print; sweeps show multi-venue urgency. TradingFlow lets you filter both.

See the workflow in TradingFlow

Open the live Option Trades tape, rank unusual activity, and validate structure in one research path.