Sweep Order

An aggressive order that simultaneously hits multiple exchanges for immediate execution, prioritizing speed over price — often signaling urgent conviction.

Last updated: February 2026

What Is a Sweep Order?

A sweep order executes as quickly and completely as possible by simultaneously hitting the best available prices across multiple exchanges. Rather than routing to a single venue, the order is “swept” across venues — grabbing available contracts at each until the order is complete.

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Sweeps contrast with block trades, which are large single-venue transactions often negotiated with a market maker. A sweep prioritizes speed: whoever is placing it wants in (or out) immediately and is willing to accept slightly worse prices to avoid telegraphing the order or leaving it visible in an order book.

Why It Matters for Options Traders

Sweeps are widely interpreted as signals of urgency and conviction. The logic: if an institution is patient and executing a routine hedge, they can use limit orders or work the order over time. When someone sweeps, they’re paying the speed premium — indicating they want exposure now, before something happens.

Options flow scanners highlight sweeps because the behavioral signal is distinct. A large sweep on a near-term OTM call, especially with volume exceeding open interest (new positioning, not closing), draws attention as potential “informed” activity. Paired with a catalyst window (earnings in 2 weeks, FDA decision pending), the signal carries more weight.

Interpretation requires context. Not all sweeps are directional bets — many are institutional hedges, portfolio insurance, or volatility trades. Strike, expiration, put vs. call, size, and timing relative to catalysts all factor into the read.

Identifying Sweep Characteristics

  • Multi-exchange fill: Appears on the consolidated tape as multiple fills across venues, often within milliseconds
  • At-ask execution: Sweeps typically execute at the ask price (aggressor pays), not the bid
  • Above average volume: Often significantly more contracts than typical daily volume at that strike
  • Below open interest: May exceed existing open interest, confirming new positioning
  • Short-dated: Sweeps in near-term expirations carry more urgency signal than LEAPS