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Automated tradingfor emerging funds& family offices.

Your all-in-one quant shop with fully automated

strategies, advanced investment analytics, end-to-end trading solutions and more.

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two markets in one

Supercharged
strategy building

Your very own quant shop — build automated strategies in minutes.
No coding or large team needed.

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End-to-end
trading solutions

Composer powers your trading automation, with industry contacts to support entity setup and tax reporting.

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Build a portfolio
of diversified algorithms

Manage multiple strategies across various asset classes and run them simultaneously within your portfolio.

Built for global asset managers to local small businesses and everything in between

US Based Entities

Includes LLCs, corporations, trusts, partnerships, and other business structures operating in the United States.

Composer Business Accounts are also available to residents of other countries who have a business entity in the US.

Family Offices

Designed for private advisory firms managing UHNW wealth, Composer offers automation, real-time analytics, and data-driven portfolio management.

Hedge Funds

Built for fund managers, Composer is your personal quant shop—build automated strategies in minutes and track them with data-driven portfolio management.

Prop Traders

For corporations, partnerships, LLCs, or unincorporated entities trading on their own behalf, Composer supercharges strategy building across single or linked accounts.

Small Businesses

For small business corporations, partnerships, LLCs managing assets, Composer is your reliable strategy builder—no coding or large team needed.

Retirement Investment Advisors

Manage your portfolio with automated, rules-based, market-adaptive investment strategies.

Educators

For college and high school professors looking to integrate our trading platform into their finance, computer science, or business classes for hands-on learning.

Need help setting up an LLC?

We’ll guide you through the process from start to how to make your first investment.

LLC setup
trusted brokerage background

Being able to build and test algorithms within minutes is a huge piece of magic that Composer has. We have gleaned so many insights because we have a portfolio of algorithms. While people are trading two or three algorithms, we can learn so much more, so much faster and get to the things that matter.

Enders Capital

  • $37B+ trading volume
  • 18M+ orders executed
  • 2M+ account rebalances

As seen on:

Wall Street Journal logoBloomberg logo

Business editor arrowsCustomize and create strategies

Every strategy is fully editable. Swap out assets, adjust trading logic, and tweak parameters using our no-code editor.

Custom weight, inverse volatility or balance equally.

Apply weighting
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fully automated trading

Fully automated trading

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

rule-based, market-adaptive strategies

Rule-based,
market-adaptive strategies

Run multiple diversified strategies in parallel based on data-driven rules.

in-depth strategy analytics and insights

Get in-depth strategy analytics
and insights

Gain clarity with deep insights and unlimited backtests before executing your strategy.

do more with our API

Do more with our API

Expand your trading and reporting capabilities with our powerful API.

We’ve got the basics covered

Full transaction reporting

Full transaction reporting

Pick what you prefer, export CSV
or use our API.

Full IP Ownership

Full IP Ownership

Your strategies, your ownership.

Mark-to-market

Mark-to-market

Streamlined accounting and wash
sale management.

Always here for you

Always here for you

Concierge onboarding and priority
support.

U.S. Trading Entity Setup and Taxation with Trader Tax CPA

With Trader Tax CPA, learn about establishing a U.S. entity, navigating taxation, and liability protection.

Download Guide
Trading Guide

Frequently Asked
Questions

* The testimonial in the WSJ article mentioned on this page may not be representative of the experience of other customers and it does not guarantee future performance or success.

Start building automated strategies in minutes.

Skip the manual trading and upkeep, Composer is your end-to-end quant trading solution.

Let’s get started
LLC setup
LLC setup

Securities products and brokerage services are offered by Composer Securities LLC, a broker-dealer registered with the SEC and member of FINRA / SIPC. Composer Securities LLC and Composer Technologies Inc. are separate but affiliated companies. Accounts are carried and securities execution, clearance and settlement services are provided by Alpaca Securities LLC, and Apex Clearing Corporation, SEC-registered broker-dealers and members of FINRA / SIPC. Alpaca Securities is a wholly-owned subsidiary of AlpacaDB, Inc. Apex Clearing Corporation, is a wholly-owned subsidiary of Apex Fintech Solutions Inc. Check the background of Composer Securities LLC, Alpaca Securities LLC, and Apex Clearing Corporation on FINRA BrokerCheck . This is not an offer, solicitation of an offer, or advice to buy or sell securities or open a brokerage account in any jurisdiction where Composer Securities is not registered. Securities products offered by Composer Securities are not FDIC insured

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, and Payment Agreement.

Please see Composer Securities' Customer Relationship Summary.

Keep in mind, investing involves risk. Examples are for illustrative purposes and are not a recommendation, an offer to sell, or a solicitation of an offer to buy any security. Past performance is no guarantee of future results.

Online trading has inherent risk due to system response, execution price, speed, liquidity, market data and access times that may vary due to market conditions, system performance, market volatility, size and type of order and other factors. An investor should understand these and additional risks before trading.

Options trading involves significant risk and is not appropriate for all investors. Prior to buying or selling an option with Composer Securities LLC, please read the "Characteristics and Risks of Standardized Options," also known as the Options Disclosure Document (ODD). You can access the ODD by clicking here. Options transactions are often complex and can expose investors to potentially rapid and substantial losses. In some cases, you may lose your entire investment in a relatively short period. Furthermore, certain complex options strategies carry additional risk, including the potential for losses that may exceed your original investment amount.

Please read important legal disclosures.

Composer Securities does not provide tax advice. This material is for informational purposes only and is not intended to be a substitute for consultation with a qualified tax professional before making any investment decisions.

The cash sweep program is made available in coordination with Apex Clearing Corporation through Composer Securities. Please read the Important Disclosures for more information.

Composer Securities is a member of SIPC, which protects securities customers of its members up to $500,000 (including $250,000 for claims for cash). Explanatory brochure available upon request or at www.sipc.org. SIPC does not protect against market losses.

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., Composer Securities LLC, and its affiliates are not partners, affiliates, or licensees of these companies.

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