Who Are the Best Small Online Brokers?
Small online brokers like Robinhood have shaken up the market for the bigger players. How do they actually stack up?

Nellie S. Huang
Brokerage start-ups such as Robinhood, M1 Finance and SoFi are tiny compared with the trillions of dollars in brokerage assets at the likes of Schwab and Fidelity. But they've already made a big dent in the way things work: These small online brokers pioneered commission-free stock trading and fractional-share purchases, and now those services are standard fare at the bigger firms.
And that's one of the reasons we keep an eye on smaller brokerage firms – because they're shaking up the industry. If not for Robinhood, for instance, we might still be paying commissions on stock and ETF trades.
For investors who just want a handy phone app or online platform where they can trade stocks, exchange-traded funds, options or cryptocurrencies on the cheap, these brokers will do the trick. We refer to these firms as "smaller" shops for the sake of this article, but in terms of customer counts, that's not always the case anymore (we're looking at you, Robinhood).
From just $107.88 $24.99 for Kiplinger Personal Finance
Be a smarter, better informed investor.

Sign up for Kiplinger’s Free Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
These smaller firms don't qualify for our annual review of the best online brokers because they don't offer mutual fund or bond trading. But they may be worth a look by investors who want to be on the bleeding edge of innovative offerings at rock-bottom fees. We evaluated four firms: Moomoo, Robinhood, Tastytrade and Webull. (M1 and SoFi did not respond to our invitations.) Here is how the four stack up.
Best small online brokers for investment choices
None of these brokers offers mutual funds, corporate bonds or municipal bonds. Only Tastytrade allows you to buy and sell Treasury securities.
Robinhood and Tastytrade offered the broadest selection of investment choices, with the biggest inventories of fractional shares of stocks and ETFs, for example. They're the only two that trade cryptocurrencies – Robinhood offers 11; Tastytrade, four.
Moomoo pays the highest rate on its "sweep" account: 5.1%. Webull pays 5%.
Best small online broker for mobile apps and desktop tools
Most of the brokers here started with a mobile-first mindset, so there is little difference between their mobile and desktop functionality.
Moomoo and Webull's robust apps include stock and ETF screeners, chart-drawing tools and cost-basis calculators. Tastytrade has highly sortable lists rather than screening tools.
Best small online broker for advisory services
Webull's Smart Advisor is the only advisory service offered in this group. Its computer algorithms will create a portfolio of ETFs for an annual fee of 0.2% of your portfolio. You can choose among six options tailored to your risk appetite and goals.
Best small online broker for customer service
None of these brokers have brick-and-mortar locations, and all have limited customer service. Moomoo has humans answering chat requests. Robinhood says a staffer will call or email you back upon request. Tastytrade offers a chatbot that it says will eventually connect you to a human if you ask.
Best small online broker for fees
Robinhood, which launched the no-commission price war, charges no fees for options trading. It's experimenting with another pricing innovation: For $75 a year, investors can enroll in "Robinhood Gold," which entitles them to perks including 3% matching contributions to a Robinhood IRA and 5% interest on a sweep account.
Moomoo stands out for its $0 fees to trade options on stocks and $5 for 10 index option contracts.
Note: This item first appeared in Kiplinger Personal Finance Magazine, a monthly, trustworthy source of advice and guidance. Subscribe to help you make more money and keep more of the money you make here.
Related content
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.

Kim Clark is a veteran financial journalist who has worked at Fortune, U.S News & World Report and Money magazines. She was part of a team that won a Gerald Loeb award for coverage of elder finances, and she won the Education Writers Association's top magazine investigative prize for exposing insurance agents who used false claims about college financial aid to sell policies. As a Kiplinger Fellow at Ohio State University, she studied delivery of digital news and information. Most recently, she worked as a deputy director of the Education Writers Association, leading the training of higher education journalists around the country. She is also a prize-winning gardener, and in her spare time, picks up litter.
- Nellie S. HuangSenior Editor, Kiplinger Personal Finance Magazine
-
IRS 1099-K Threshold for 2025 Taxes Just Changed: What to Know Now
Tax Law After years of uncertainty and changing requirements, the 1099-K reporting rules for 2025 are now set, and the thresholds have changed since last year.
-
The 'Permission to Spend' Rules of Retirement Spending
Here’s how to spend guilt-free when you are in retirement.
-
Preferred Bank Stocks: The Investment Retirees (and Others) May Be Missing Out On
Most large banks issue preferred stocks that pay out fixed dividends, often with higher yields than bonds. Should you make room for them in your portfolio?
-
Don't Let Your Equity Compensation Trip You Up: A Financial Expert's Guide
Stock options, RSUs and other executive perks can come with some serious strings attached. To avoid a nasty tax surprise, you need a plan.
-
Rally Fades on Mixed AI Revolution News: Stock Market Today
All three main U.S. equity indexes opened higher but closed lower as a seven-session winning streak for the S&P 500 came to an end.
-
The Spendthrift Trap: Here's One Way to Protect Your Legacy From an Irresponsible Heir
A spendthrift clause in an estate plan can protect an inheritance from a financially irresponsible child's debts and poor decisions.
-
Adapting to AI's Evolving Landscape: A Survival Guide for Businesses
Like it or not, AI is here to stay, and opting out could be disastrous for your organization. Instead, focus on what you can control and be flexible, as AI is still evolving.
-
S&P, Nasdaq Hit New Highs: Stock Market Today
A late-day rally wasn't enough to lift the Dow into the green as its six-session winning streak came to an end.
-
AMD Stock Surges on OpenAI Deal
Advanced Micro Devices could see tens of billions of dollars in new revenue from the ChatGPT maker as the AI infrastructure buildout accelerates.
-
These Stocks Dipped in 2025. Do They Have Value?
If you are looking to add new long-term positions to your portfolio, as you should, this is the time to examine stocks that the market shuns.