Composer review
Updated September 28, 2026 · SumCue Editorial Team · Facts checked September 26, 2026
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Our verdict
Composer charges an account fee of $0 and a stock trade fee of $0, the simplest cost setup here, inside an automated app that trades stocks and ETFs. It suits US savers who want a retirement account run from a phone and can start with a minimum deposit of $50.
Key facts
- Best for
- Commission-free US retirement investing handled from a phone.
- Minimum deposit
- $50↗
- Stock trade fee
- $0
- Account fee
- $0↗
- Markets
- Stocks, ETFs↗
- Regulators
- SEC, FINRA, SIPC↗
- Investor protection
- SIPC up to USD 500,000↗
- Account types
- IRA, Roth-IRA, Corporate↗
- Legal entity
- COMPOSER SECURITIES LLC↗
- Features
- Mobile app
- Pricing model
- Commission-free
- Official website
- composer.trade
Facts checked September 26, 2026, 5 sources
Apps and profiles
- Get the app
- App Store
Pros and cons
Pros
- Commission-free dealing: a stock trade fee of $0 and an account fee of $0
- A low entry point, with a minimum deposit of $50
- Regulators listed are SEC, FINRA and SIPC, and protection on holdings runs through SIPC
- Set and forget portfolios run in the phone app, the listed feature mobile app
Cons
- Account types are ira, roth ira and corporate, so there is no general taxable account or local wrapper for UK and European savers.
- Markets are stocks and etfs only, with no bonds, funds, crypto or forex alongside shares and ETFs.
- The $50 minimum deposit sits above the site median of €0.88, so the entry point is not the lowest in the list.
Who it suits
- US savers who want a retirement or company account, with ira, roth ira and corporate on offer
- People who want commission-free dealing, with $0 on trades and $0 to hold the account
- Investors who would rather set a portfolio and let it run than place individual orders, using mobile app
Who should look elsewhere
- UK and euro savers who want a domestic bank account, since bunq lists a minimum deposit of €10 on its plans and keeps the account in euro
- Traders who want to open with nothing, since CFI lists a minimum deposit of $0 rather than the $50 asked for here
- Borrowers rather than investors, since Fiesta Credito MX lists CONDUSEF as its regulator and deals in credit
How Composer compares
9.4 vs 9.4
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9.4 vs 8.7
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9.4 vs 8.7
9.4 vs 8.6
9.4 vs 9.2
9.4 vs 9.2
9.4 vs 9.0
9.4 vs 9.2
9.4 vs 9.2
9.4 vs 9.2
9.4 vs 9.1
9.4 vs 9.0
9.4 vs 9.0
9.4 vs 9.0
9.4 vs 9.0
9.4 vs 8.8
Where Composer is available
- Available
- United States
- Licence in United States
- SEC, checked September 26, 2026
- Licence in United States
- FINRA, checked September 26, 2026
- Licence in United States
- SIPC (SIPC member 71057), checked September 26, 2026
Countries from the brand (Source, checked September 26, 2026)
Frequently asked questions
What does it cost to hold an account and trade at Composer?+
Composer charges an account fee of $0 and a stock trade fee of $0, and the pricing model is commission-free. Both sit at the top of the site lists, with ranks of 1 on account fee and 1 on stock trades, so the running cost of holding and buying is easier to plan than at a broker charging monthly.
Is money held with Composer protected?+
Accounts are held by Composer Securities LLC, and protection runs through SIPC, the scheme named in the listed protection terms. Regulators listed for the firm are SEC, FINRA and SIPC, so oversight is entirely US, and the accounts covered sit inside that same framework.
How much do I need to open an account?+
The minimum deposit is $50, which is a small starting point set against the site median of €0.88. Accounts come in ira, roth ira and corporate forms, so a retirement wrapper and a corporate one are both available to open with that amount.
What can I buy and sell at Composer?+
The markets listed are stocks and etfs, meaning shares and ETFs rather than a wider product range. Trading in those instruments is commission-free, with a stock trade fee of $0, and the portfolio work happens inside the same app.
Which account types are on offer?+
Account types are ira, roth ira and corporate, so the range is built around retirement saving and company money rather than a general investing account. That makes it a natural fit for US savers and a poor match for anyone in the UK or Europe who needs a local tax wrapper.
How do I manage the portfolio day to day?+
The listed platform feature is mobile app, so the portfolio is built and adjusted in the phone app rather than on a separate trading terminal. It suits people who set allocations and let them run, and suits trading less if you prefer to time individual orders.
Which regulators oversee the brokerage?+
Regulators listed are SEC, FINRA and SIPC, all US bodies, and the entity holding accounts is Composer Securities LLC. The account types on offer, ira, roth ira and corporate, match that US focus, which is the first thing a UK or European reader should weigh.
What are the odds of losing money here?+
Retail accounts that lose money run at a median of 72.03% across stock brokers, and 70.15% across the wider site. Commission-free pricing cuts the cost of holding shares and ETFs, not the risk that their value falls.
Sources
- sipc.org/list-of-members checked September 26, 2026
Backs: Legal entity, Licences
“reportingFileNumber=71057; name=COMPOSER SECURITIES LLC”
- storage.googleapis.com/www.investcomposer.com/docs/form-c... checked September 26, 2026
Backs: Minimum deposit
“We require a minimum deposit of $50 to open an account”
- composer.trade checked September 26, 2026
Backs: Features, Markets
“Build trading algorithms with AI, backtest them, then execute”
- composer.trade/pricing checked September 26, 2026
Backs: Account fee, Investor protection, Regulators
“Starter $0 - No subscription needed to start automated trading”
- composer.trade/retirement checked September 26, 2026
Backs: Account types
“Our platform supports both Traditional and Roth IRAs”
Compiled from 5 source pages, checked September 26, 2026. We did not open an account.
Not confirmed yet: Inactivity fee, Retail accounts that lose money.