Composer

Composer is an AI-native automated investing platform where retail investors build rules-based strategies, called symphonies, in a visual no-code editor instead of Python. The platform handles the full loop inside one product: you compose if-then logic blocks, backtest against historical data, and execute automatically through its built-in brokerage connection. Composer is registered as both an SEC-registered investment adviser and a broker-dealer, and it supports stocks, ETFs, and crypto with automated rebalancing. In October 2025 it launched Trade With AI, a natural-language assistant that turns a plain-English description into a fully backtested symphony in under a minute, and its strategy marketplace hosts over 3,000 community-built strategies that most users copy or remix.

The company was founded in 2020 in Toronto by Benjamin Rollert, Ananda Aisola, and Ronny Li, and has raised about $16.7 million from Left Lane Capital, First Round Capital, Golden Ventures, and others. A June 2026 market comparison reported that Composer became part of SoFi, which would give it a large financial-services owner, though I could not independently confirm that deal from primary sources. Composer reports over $200 million in daily trading volume, a vendor-stated figure, and says it charges zero commissions and management fees with a subscription around $40 per month for the stock plan. Pricing and fee details should be confirmed on the current pricing page before signing up.

1. Create an account at composer.trade and connect your bank for funding.
2. Use Trade With AI or browse the marketplace of 3,000+ community symphonies to find a starting strategy.
3. Edit the strategy in the no-code visual editor: assets, weights, if-then conditions, rebalancing rules.
4. Backtest it against historical data and review the risk metrics.
5. Go live to automate execution through the built-in brokerage, then monitor and adjust.