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What is actually inside that large options print?

Read the contract, size, premium and execution context together. Filter the tape to the symbol you care about, then investigate the prints behind the headline number.

Free and Pro include the same tools. Free data is 15 minutes delayed; Pro is real-time. Seven-day Pro trial. The public scanner needs no account.

Actual product captureHistorical example · not live data
Historical Live Flow capture filtered to MSTR with two large call prints at 15:52:33 ET on October 16, 2026

Swipe the capture to inspect it, or tap to open full-size.

Two MSTR call prints share a timestamp, but their strikes and expiries differ. Read the rows before joining them into a story.

Dashboard capture · October 16, 2026 · 15:52:33 ET. Open the image for full-size detail.

Read the capture · 01

Identify the contract

The first row is the October 23 $45 call; the second is the October 16 $50 call. Both are labelled ITM in the capture.

Read the capture · 02

Separate size from intent

Displayed premiums are $60.70M and $59.73M, each tagged LARGE and ask. Those fields describe the reported prints.

Read the capture · 03

Investigate, don’t assume

A shared time does not establish a linked strategy. Compare nearby prints and contract context before deciding what deserves further research.

Keep the example in context. Ask-side execution does not identify the buyer, prove an opening position or establish a bullish bet. The tape does not reveal every leg of a strategy.

What you can investigate

Less guessing. More context to inspect.

Notable prints, in order

Each row is one recorded trade: ticker, strike, expiry, call or put, premium, and the spot price at the moment it hit.

Execution, flagged

Sweeps, blocks and repeat prints are labelled as they land, with ask/bid context — how a trade executed, not just that it happened.

Cut to what you watch

Filter by side, size or premium, and search a ticker to isolate its prints from the rest of the session.

Your first session

A practical place to start.

Open Live Flow in the dashboard. Search a symbol, use the visible filters, then open a trade row to investigate its contract.

  1. 01

    Start at the top

    New prints land at the top of the tape. Time, ticker and premium give you the shape of the session at a glance — busy names surface on their own.

  2. 02

    Read the execution

    A sweep lifted at the ask reads differently from a block crossed at the bid. The type and side chips carry that context on every row, so you never read size alone.

  3. 03

    Open what stands out

    Click a row for that contract's own history and open interest — the print in context, not in isolation.

Continue the research

Next: Surge detection

Cumulative net call and put premium beside SPY or QQQ price through the session.

Go deeper when you need to

The fields, without the mystery.

How to read the fields
Time, expiry and strike
Separate the print timestamp from the contract expiry. Strike is the exercise price, not a target price.
Contracts, premium and OI
Contracts show the reported trade size; premium shows its dollar value. Open interest is a separate outstanding-contract measure, not an intraday count of new positions.
Side, type and detail
Ask/bid context describes where a print executed relative to quotes. Sweep/block/large labels describe execution classifications; ITM/ATM/OTM describes the strike relative to spot.

Connect the steps

Choose one symbol and expiry range. Compare the largest prints with nearby activity, inspect contract details, and use Surge for broader session context before drawing a conclusion.

What this cannot tell you

A print does not identify its trader, prove opening versus closing activity, or reveal every leg of a strategy. Ask-side calls are not automatically a bullish bet. Provider classification and quote timing matter.

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Do I need Pro to use this?

Free and Pro include the same product tools. Free market data is 15 minutes delayed; Pro market data is real-time. A seven-day Pro trial is available. An account is needed for the dashboard. The public single-ticker scanner can be used without one.

See Free and Pro plans

Explore the tools with your own research question.

Free and Pro include the same product tools. Free market data is 15 minutes delayed; Pro market data is real-time. A seven-day Pro trial is available.