Most traders see the chart. Astro shows the money behind it.

Big bets on the tape, explained in plain English.

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Astro Flow · flagged 12:38 PM CT

AAPL 335 calls, 10/12

Calls bought at the ask · $2.05 · 18x open interest

Betting up

+109.8% peak since flagged

Real past flow marker · Fri, Oct 9

Not a regular flow tool.

Apollo missions, with the flow and the chart read behind every one.

Recent highlights

Selected Astro Flow markers, –

  1. AMD 550 calls, 10/21

    · 10:33 AM CT

    +237.8%peak since flagged

    Flagged $2.25 · Close $4.35

  2. MU 880 puts, 10/23

    · 9:47 AM CT

    +159.9%peak since flagged

    Flagged $13.00 · Close $28.77

  3. AAPL 345 puts, 10/19

    · 9:47 AM CT

    +156.7%peak since flagged

    Flagged $1.50 · Close $1.90

  4. MRNA 200 calls, 10/23

    · 2:32 PM CT

    +120.0%peak since flagged

    Flagged $5.00 · Close $7.50

Selected flow markers, not all of them. Peak since flagged compares the highest traded price after a marker with its price when flagged; it is not a trade result. A dashed stretch had no trades; the green bracket marks trading near the peak.

How it works

Reading the options tape used to take a trading desk, an expensive data feed and years of practice. Astro does the reading for you.

  1. Step 1

    Astro reads the tape

    What was bought, how aggressively, and how it compares to open interest.

  2. Step 2

    You get an Apollo mission

    The mission, the flow marker behind it, and the chart.

  3. Step 3

    You decide

    Every mission comes with the why. You stay in charge.

Ask Astro about any flow or any chart.

Astro checks its answers across several AI models. Join the waitlist to try it.

Already on the waitlist? Open Ask Astro

AstroChecking access…
  1. Example
  2. You: What does it mean when the flow and the chart agree?

  3. Astro: Flow is where big traders are putting money in options, like a run of large call orders on one stock. The chart shows where the price sits against its key levels, like holding above the day's average price. When both point the same way, Astro posts a play and shows you both.

Checking access on this device…

Join the waitlist to ask Astro 2 questions a day.

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Answers trading questions only.

Built and refined by a professional trader

Four inputs. One Apollo mission.

No signal is read in isolation. Astro speaks up only when the chart, the flow, the market and relative strength agree.

The chartKey levels and trendlines.
Flow, filteredBig-money bets. In-the-money noise thrown out.
The whole marketIs the market helping or fighting the move?
Relative strengthLeading the market or lagging?
Apollo mission

One mission, only when they agree.

  • The mission
  • The chart read
  • The Astro Flow behind it

Everything you need to know, in one place.

Options flow, filtered

Big buyers are betting this stock goes down

Market internals

Most stocks are falling. The market leans weak.

Social sentiment

Chatter on this stock turned bearish this morning

Illustrative examples of the signals Astro explains.

Questions people ask first.

I've never traded. Is this for me?

Yes. We explain the terms as we go. Start with our short guide to puts.

What does it cost?

Early access is free, and you don't need a card. We're in a private beta, letting a few people in at a time, and we'll share pricing before anyone pays.

Does Astro trade for me?

No. Astro posts Apollo missions and the flow behind them. You place your own trades.

How often will I hear from you?

Missions post as Astro finds them, during market hours. There's no set number a day.

How do I stop notifications?

Turn them off any time in the app's Settings.

The edge used to be access. Now it's intelligence.

Join the waitlist and be the first to hear when early access opens.

Free to join. No card needed. Leave the waitlist anytime.