Trading. Built better.

$1B+

trading volume

900,000+

orders executed

3M+

backtests run

As seen on

AI-powered strategy creation

Explain your goals, strategy, and risk concerns in natural language — our AI-assisted editor will create the strategy for you.

More automation, less worry

Composer executes your trading strategy, making trades and rebalancing automatically.

Discover pre-built strategies

Find strategies you can invest in right away, across a variety of purpose-driven categories, like Long Term, Technology Focus, and Diversification.

A portfolio that reacts to the market

Don’t get caught up in emotions and sensationalized tweets. Trade based on data and market movements.

Community

See what others are creating with Composer. Invest directly or make changes. Submit your own strategies to the Community.

Composer is the brokerage

Fully automated trading execution, end-to-end. Create and fund your account in the app.

No commissions on trades

Zero commissions, zero management fees.

Transparent pricing

Simple fixed monthly subscription. Test for free.

Customize and Create

Every strategy on Composer is fully editable. Swap out assets, adjust programmatic logic, and tweak parameters.

Use our no-code, visual editor to modify symphonies or create your own from scratch.

Apply weighting

Custom weight, inverse volatility, market cap or balance equally.

UI element showing conditional statement: If the current price of SPY is greater than the 200d moving average of price of SPY, buy SPY, else, buy BND

If this, then that

Add conditionals to control the flow of logic.

Sort, filter, select

Start with a pool of candidates and dynamically select those that meet your criteria.

Learn and adapt

Backtest your strategy. Compare it to a benchmark or to another strategy.

Learn from what you see. Tinker and try it out again. And again.

Model the value of your symphony

Fees, slippage and final value are calculated for you.

Share what you build

Share your strategy with others. They’ll be able to test it and even invest in it.

Frequently Asked Questions

How do I get started?

Click Sign Up and create an account in under 90 seconds by answering a few simple questions and funding your account using a bank account. Once funded, you can invest in a pre-made symphony or create your own.

Note: funding transfers usually take about 24 hours to show up in your account.

What fees does Composer charge?

See our pricing page for details.

Please note that sales (i.e., selling a stock or ETF) are subject to regulatory fees. Composer does not benefit from these fees, and all proceeds go directly to the Securities and Exchange Commission (SEC) and Financial Industry Regulatory Authority (FINRA). More information is available from our brokerage partner, Alpaca. You can find the fee schedule here from our new brokerage partner, Apex Clearing Corporation.

How are my trades executed and who is Alpaca and Apex?

Trades execute on weekdays between 3:50 pm ET and market close. Brokerage services are provided through our partners, Alpaca and Apex Clearing Corporation.

Both Alpaca Securities and Apex Clearing Corporation are members of SIPC, and securities in your account are protected up to $500,000. For details, please visit www.sipc.org.

Can non-US residents use Composer?

Unfortunately, we are not able to support non-US residents at this time.

Where will my assets be held?

Our brokerage partners, Alpaca and Apex Clearing Corporation, are members of the Financial Industry Regulatory Authority (FINRA) and Securities Investor Protection Corporation (SIPC). Through SIPC, securities in your account are protected up to $500,000. For details, please visit www.sipc.org. Further, assets are held with our custodian bank, BMO Harris.

Who is Composer?

Composer is a Registered Investment Advisor with the Securities and Exchange Commission (SEC) and a Broker-Dealer with the Financial Industry Regulatory Authority (FINRA). Our legal and compliance counsel are Lowenstein Sandler and Greyline LLC, respectively. We are backed by tier-one venture capital firms, including First Round Capital, who were investors in Square and Uber.

Can I transfer funds from another platform?

Yes! We can process an ACATS transfer for you. Reach out to support@composer.trade to get started.

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.

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. By using this website, you accept our Terms of Service, Privacy Policy, Advisory Agreement and Payment Agreement. Please see our Customer Relationship Summary.

Market data refreshed at least every 15 minutes unless otherwise indicated. Market data provided by Xignite.

Please read important legal disclosures.

Securities products and services are offered through Composer Securities LLC and Alpaca Securities LLC, Member FINRA / SIPC. Composer Securities LLC and Composer Technologies Inc. are separate but affiliated companies. Alpaca Securities is a wholly-owned subsidiar of AlpacaDB, Inc. Technology and services are offered by AlpacaDB, Inc. Check the background of Composer Securities LLC and Alpaca Securities LLC on FINRA BrokerCheck.

Securities products are: Not FDIC insured · Not bank guaranteed · May lose value

Trademarks and logos are the property of their respective owners and do not represent endorsements of any kind. Unless otherwise noted, Composer Technologies Inc. and its affiliates are not partners, affiliates, or licensees of these companies.