Broker profile
Moomoo Financial · US
moomoo, with an AI that reads it and buys what you approve.
What moomoo is, what its own AI tools do, what it costs, and how Walnut reads your moomoo account next to your other brokers, measures each holding against the S&P 500, and places the buys you approve.
- Reads your moomoo account
- Buys what you approve
- Login stays at moomoo
Your moomoo, in Walnut
ConnectedWhat does my moomoo account lean on?
Chips. AMD, NVDA and TSM are 52% of it, and NVDA alone is 30%. Walnut flags any holding over a quarter of the portfolio.
Pricing and fees, checked October 2026
How much does moomoo cost?
- Commission on US stocks and ETFs
- $0
- Contract fee on equity options
- $0
- Smallest fractional buy
- $5
- Contract fee on index options
- $0.50
- 30-day average for free Level 2 data
- $100+
- SIPC protection per customer
- $500K
AI features
What moomoo's own AI does
moomoo builds AI into its own app and opens accounts to outside assistants. Each works on moomoo alone.
moomoo AI
One-page briefs on a stock, drawn from news and data and refreshed before and after each session, plus short summaries of earnings reports.
Moomoo Engine
Paid research, options and technical tools that start from an AI Fundamental Briefing. Drops to $0.99 a month above $1,000 in assets.
moomoo MCP and API Skills
A hosted MCP that lets Claude, Cursor and other MCP clients read quotes and positions and place orders. API Skills start in paper trading.
Where Walnut fits
moomoo's tools see moomoo. Walnut reads it next to Fidelity, Robinhood or any other broker you connect, puts every holding against the S&P 500, and places the buys you approve back at moomoo.
Pricing
What moomoo costs
moomoo's published US prices, checked October 2026. Walnut charges nothing extra to connect moomoo.
With Walnut
What you can do with moomoo here
- Read your moomoo accountPositions and cash, with live prices
- Each holding against the S&P 500Price return over the year, no cost basis
- A keep, trim or exit readFrom return, momentum and position size
- Buy what you approveOrders go to your moomoo account
- Count it toward your goalsNext to every other account you add
- Sell from WalnutWalnut places buys only. Sell in the moomoo app
Everything else people ask about moomoo, answered plainly.
Short answer
For low-cost trading, yes. moomoo charges no commission on US stocks and ETFs, no contract fee on equity options, and sells fractional shares from $5. Its app is dense with charts and data, and its US accounts are individual cash and margin only, with no IRA.
moomoo is built for people who like research screens: institutional tracking, heat maps, earnings calendars and free Level 2 data once the account averages $100. Paper trading lets a beginner practice before using real money.
What it shows less of is everything outside moomoo. Retirement savings have to live at another broker, so a moomoo account is often one piece of a larger portfolio that no single app sees whole.
Read the full guide: The best investing apps for beginnersShort answer
Moomoo Financial Inc. is a FINRA member and SIPC member, so securities in your account are protected up to $500,000, including $250,000 for cash, if the firm fails. SIPC does not cover market losses.
Connecting moomoo to Walnut uses moomoo's own sign-in. Your password is entered at moomoo and never seen by Walnut, and you can disconnect the link from Walnut's Brokerage screen at any time.
$500K
SIPC protection per customer
$250K
Of that, the limit for cash
FINRA
Moomoo Financial Inc. is a member
Short answer
Claude, yes. moomoo runs a hosted MCP server that Claude Desktop, Claude Code, Cursor and other MCP clients can add, with an OAuth sign-in at moomoo. Its setup guide does not list ChatGPT. moomoo says the server can also execute trades.
moomoo's connector covers moomoo only. Walnut connects moomoo the same secure way, reads it next to your other brokers, frames each holding against the S&P 500, and can buy a basket built around an idea you hold, one previewed order at a time that you confirm.
Read the full guide: Brokerage MCP connectors, comparedShort answer
No. In the US, Moomoo Financial Inc. opens individual cash and individual margin accounts only. It does not offer IRAs or joint accounts, so retirement savings sit at another broker.
That split is common: a trading account at moomoo and a Roth IRA at Fidelity or Robinhood. Walnut reads both, so the question of how much of everything you own sits in one stock has a single answer.
Read the full guide: Taxable account vs IRA, and when to use bothAll three take buys you approve in Walnut. For a new account to trade with Walnut, it points to Public or Robinhood.
Quick answers
- Does moomoo charge fees?
- No commission on US stocks and ETFs and no contract fee on equity options. Index options carry $0.50 a contract, plus regulatory fees.
- Is Level 2 data free on moomoo?
- Yes, for accounts with a 30-day average value of $100 or more. Other conditions apply.
- What is Moomoo Engine?
- A paid set of research, options and technical tools at $3.99 a month or $39.90 a year, dropping to $0.99 a month above $1,000 in assets.
- Can Walnut place trades at moomoo?
- Yes, if your connection allows trading. Walnut previews each buy and sends only the ones you confirm to moomoo.
- Does Walnut see my moomoo password?
- No. You sign in at moomoo, which gives Walnut access to your holdings and never your login.
- Is connecting moomoo to Walnut free?
- Yes. Connecting is free, and so is the assistant up to a per-session allowance. Walnut Unlimited, $9.99 a month on the web, lifts that limit.
Keep reading
Sources, checked October 2026
- moomoo pricing: $0 commissions, option contract fees
- How to trade fractional shares ($5 minimum)
- moomoo US home: free Level 2 at $100+ average value
- What account types can I open? (no IRA or joint)
- Account Opening Disclosure (SIPC $500K, $250K cash)
- How to use moomoo AI
- Moomoo Engine launch and pricing
- Moomoo API Skills (defaults to paper trading)
- moomoo MCP overview (quotes, portfolio, trades)
- moomoo MCP quick start (Claude, Cursor, OAuth)
- Webull stock trading ($5 fractional minimum)
- Webull IRAs: Traditional, Roth, Rollover
- Robinhood fractional shares ($1 minimum)
- Robinhood Retirement (IRAs)
Walnut is an AI financial advisor app; it is not a registered investment adviser. Nothing here is a recommendation to buy or sell a security. Broker fees, products and availability change, so check the current terms with the broker.
See your moomoo the way an analyst would.
Read it in full, buy what you approve. Your login stays at moomoo.