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Investing, made creative.
Composer allows you to create custom automated investing strategies.
Create custom automated investing strategies.
It’s built for investors who want to make better decisions, dynamically react to real-world events and express a unique worldview.
Composer is built for investors who want to make better decisions, dynamically react to real-world events and express a unique worldview.

How does it work?

Composer acts as a layer on top of brokerages.
Create your symphony from a set of simple but infinitely combinable building blocks.
No-code,
visual editing.

Highlights

Start by making some picks (you're already doing this).
Three stock picks: ICLN, FSLR, TSLA.Three stock picks: ICLN, FSLR, TSLA.
Then, apply weighting.
  • No more ad-hoc allocations or error-prone, tedious spreadsheets.
  • You can specify the weights, or choose from a set of weighting functions like Market Cap or Inverse Volatility.
The three assets, ICLN, FSLR, TSLA, with Specified Weighting applied as follows: 70%, 20% and 10%.The three assets, ICLN, FSLR, TSLA, with Specified Weighting applied as follows: 70%, 20% and 10%.
This is the point where most investors stop.
But, Composer unlocks new powers.

Powers

If this, then that.
  • Add conditionals to control the flow of logic.
  • Use fundamental (coming soon) and technical indicators to drive decisions and react to important events.

    Avoid rash, impulsive buys and sells.
Conditional: If the current price of SPY is greater than it's 200d Moving Average, then put 100% of funds into SPY; Else, put them into BND.An example of a Conditional: if the current price of SPY is greater than the 200d Moving Average of the price of SPY, then allocate funds to SPY, else, allocate to BND.
Sort, filter, select.
  • Start with a pool of candidates and dynamically select those that meet the criteria of your choosing.
  • Use asset attributes like performance metrics to determine which assets are selected.

    Choose those that are the highest or the lowest.
Filter: Sort a group of 6 assets (SQ, SPOT, NFLX, AAPL, SHOP, TWLO)  by their 90d cumulative return and select only the top 3.Filter: Sort a group of 6 assets (SQ, SPOT, NFLX, AAPL, SHOP, TWLO)  by their 90d cumulative return and select only the top 3.
Learn and adapt
A sample of a backtest, showing performance of a symphony against benchmarks.A sample of a backtest, showing performance of a symphony against benchmarks.
  • Backtest your symphony. Compare it to a benchmark or to another symphony.
  • See how it performs under real-world conditions and learn from what you see.

    Tinker and try it out again.
    
And again.
Go live
The symphony table showing performance and breakdowns of all the symphonies in your account.The symphony table showing performance and breakdowns of all the symphonies in your account.
  • Launch your symphony with paper trading so you can see how it reacts in real time.

    Create more symphonies and build out a diverse portfolio expressing your unique worldview.
  • Understand performance and exposure at a portfolio level to make informed decisions.
  • Live trading available with our brokerage partner, Alpaca.
Join Waitlist
Limited Beta
New members added weekly. Our team will help you get your first strategy off the ground.
Community
Once you’re in, you also join a growing Composer community sharing ideas and tips.
About Us
What if the experience of managing investing strategies not only didn’t suck, but actually delighted? Our mission is to create investing software that feels fun, stimulating and creative.
We are funded by investors including First Round Capital and Golden Ventures.

Vision

Learn about our vision for the future and what we’re building next.
Composer is a registered investment advisor with the US Securities and Exchange Commission (SEC). While such registration does not imply a certain level of skill, it does require us to follow federal regulations that protect you, the investor. By law, we must provide investment advice that is in the best interest of our client.

With any investment, your capital is at risk. The value of your portfolio with Composer can go down as well as up. Past performance is no guarantee of future results.

For further details see our Legal Disclosures. By using this website, you accept our Terms of Service and Privacy Policy.