Composer Alternatives for Investors Who Do Not Want to Write Trading Rules
Composer is a genuinely strong product for people who want to automate a strategy and actually run it. It builds algorithmic trading strategies, or symphonies, and executes them in a brokerage account it opens for you through its own broker-dealer, Composer Securities, with rebalancing handled automatically.
Pick 2 to 10 holdings. Stocks, ETFs and crypto mix in one index.
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Educational only · Never places a trade
In short
Composer is an automated trading platform: you assemble a rules-based strategy, called a symphony, and Composer executes and rebalances it inside a Composer Securities brokerage account (carried by Alpaca Securities and Apex Clearing). It is built to put a strategy into the market and let it trade, and it is centered on US stocks and ETFs. Indexes is not that. It never links a brokerage, never places a trade, and never holds money. It is the design and measurement step: you author a weighted index of stocks and crypto together, backtest it against real market history, and track it against the S&P 500 or BTC. If you want automated execution, Composer is the right category. If you want to construct and study an index without trading, that is what Indexes is for.
Side by side
Indexes vs Composer
| Capability | Indexes | Composer |
|---|---|---|
| Build a custom weighted index | Partial | |
| Stocks and crypto in one index | Stocks and ETFs | |
| Backtest against real market history | ||
| Track versus benchmarks over time | Partial | |
| Places trades in a brokerage | ||
| No account, no minimum, analyze-only | ||
| Globally accessible, not US-gated |
Comparison reflects general product positioning and is provided in good faith. Verify current capabilities with each vendor.
Where each one fits
Indexes and Composer, without the sales pitch
Composer is a genuinely strong product for people who want to automate a strategy and actually run it. It builds algorithmic trading strategies, or symphonies, and executes them in a brokerage account it opens for you through its own broker-dealer, Composer Securities, with rebalancing handled automatically. If your goal is to put a rules-based strategy into the market and let it trade, Composer does that well.
It is also US-gated and centered on stocks and ETFs rather than crypto. Indexes is deliberately a different thing: it is informational and educational, track-and-analyze not trade. You build a weighted index from stocks and crypto together, backtest it against real market history, and track it over time versus benchmarks like the S&P 500 and BTC.
It never connects to a brokerage, never places a trade, and is self-serve and globally accessible. If you are leaving Composer because writing if-then rules is more work than you want, Indexes asks for no rules at all: you pick the holdings and the weights, and it does the backtest and the daily tracking.
Questions
Composer and Indexes, answered
What is Composer?
Composer is an automated investing platform where you build rules-based strategies, known as symphonies, and it trades and rebalances them for you inside a brokerage account opened with Composer Securities, its own SEC-registered broker-dealer. SoFi acquired Composer Securities and relaunched the product as Composer by SoFi on June 23, 2026. It is aimed at people who want algorithmic strategies executed automatically, primarily across US stocks and ETFs, rather than at manual index construction.
Does Composer place real trades?
Yes. Composer is the brokerage: you open and fund an account in the app and it executes the strategy for you, including rebalancing, with no commissions or management fee on trades. That automated execution is the core of the product. Indexes works the opposite way: it never connects to a brokerage and never places a trade, so it is analysis and design only, not a place your money moves.
Is there a Composer alternative that does not trade?
Yes. If you want to design and study an index rather than automate trades, Indexes is that alternative. You build a weighted index of stocks or crypto, backtest it against real market history, and track it against a benchmark, with no account to fund, no minimum, and no orders ever sent. It stays informational and educational.
How does Autopilot's brokerage-linked model compare to Composer's algorithmic strategies?
Autopilot copies a person and Composer runs rules you build. Autopilot links your existing brokerage and mirrors a Pilot such as a politician or fund manager, for a flat fee of $99.99 to $699.99 a year per Pilot under its Form ADV. Composer opens its own brokerage account and trades a symphony of if-then rules, on plans from $0 to $32 a month billed yearly. Neither one shows you whether the basket itself beat the S&P 500 before you pay, which is the step Indexes covers.
How much does Composer cost?
Composer lists three individual plans on its pricing page. Starter is $0 and automates one strategy, Advanced is $10 a month and automates up to five, and Pro is $32 a month billed yearly ($384 a year) with up to 500 automated strategies and API access. Trades carry no commission, but FINRA and SEC regulatory fees apply on sales.
Can I build a custom index instead of a trading strategy?
That is exactly the Indexes use case. Rather than encoding entry and exit rules for automated trading, you define an index: which stocks or tokens are members, how they are weighted, and how often it rebalances. Then you backtest the construction and follow the level over time as a living, named index.
New to the strategy? Start with our guide to direct indexing, what it costs and who it suits, or see direct indexing fees compared across providers. If you are still deciding which category of tool you need, the portfolio analyzer comparison sets out the difference between account aggregators, modeling tools and construction tools. To see every provider's published minimum and annual fee in one table, including the advisor-only firms, compare direct indexing platforms on fees and minimums.
Going deeper on Composer: how Autopilot's brokerage-linked copy trading compares with Composer, with Autopilot app pricing, Autopilot vs Composer pricing comparison at five account balances .
Other comparisons
Build your index and see how it backtests
Bundle stocks or crypto into your own weighted index, backtest it against real market history, and track it against the S&P 500 or BTC. Prosumer pricing, no brokerage account. Indexes is educational and informational only, and it never places a trade. Decide for yourself.