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

Big bets on the tape, explained in plain English.

Free in early access. Educational market research. Not financial advice.

Astro alert · 12:38 PM CT

AAPL 335 calls, 10/12

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

Betting up

Real past alert · Fri, Oct 9

Not a regular flow tool.

Get the alert to buy and sell, with the details and context on why the trade triggered.

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

    We read the tape

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

  2. Step 2

    You get a notification

    An alert is sent with the play, why it stands out, and the chart after.

  3. Step 3

    You decide

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

Ask Astro about any flow or any chart.

Astro's AI desk uses several AI models that check each other's work. Join the waitlist to try it.

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  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 sends an alert and shows you both. What you do with it is up to you.

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Answers trading questions only. Not financial advice.

Built and refined by a professional trader

Four inputs. One alert.

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 today a day to press or sit out?
Relative strengthLeading the market or lagging?
The decision

One alert, only when they agree.

  • The play
  • The chart read behind it
  • The flow that confirmed it

Everything you need to know, in one place.

The signals traders check every day, side by side.

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'll share pricing before anyone pays.

Does Astro trade for me?

Not yet. Today Astro sends alerts and the context behind them.

How often will I hear from you?

Alerts are sent as they happen.

How do I stop alerts?

You can turn them off at any time.

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.