Best US Stock Broker for Hong Kong Investors 2026: IBKR, Moomoo, Webull Compared
For Hong Kong retail investors, investing in US stocks is no longer a distant aspiration. With the rise of online brokerages, Hong Kong residents can now open a US stock trading account using just an identity card and a smartphone. But with so many brokers to choose from, which one is right for you?
This article provides an in-depth comparison of the three most popular US stock brokers among Hong Kong investors in 2026: Interactive Brokers (IBKR), Futu Moomoo, and Webull, evaluated across six key dimensions to help you make an informed decision.
Quick Comparison Summary
Before diving into detailed analysis, here is a summary of the core differences:
| Factor | Interactive Brokers | Futu Moomoo | Webull |
|---|---|---|---|
| Minimum Deposit | $0 | $0 | $0 |
| US Stock Commission | $0.005/share (min $1) | $0 commission, $0.005/share platform fee (min $1) | $0 (permanent) |
| HK Stock Commission | 0.08% (min HKD 18) | 0.03%–0.15% | HKD$0 |
| Cash Interest | Up to 3.1% (Pro) | Available | Available |
| Chinese Support | Basic | Full | Basic |
| HK Account Opening | Online | Online | HK residents only |
Quick Takeaway:
- Lowest commission: Webull offers true $0 US stock commissions
- Professional features and global markets: Interactive Brokers is the professional trader's choice
- Best Chinese experience and HK stock integration: Futu Moomoo offers the best Chinese-language service
Six-Dimension Detailed Comparison
1. Minimum Deposit Requirements
All three brokers have no minimum deposit requirement, which is excellent for beginner investors. You can open an account and start trading with any amount.
| Broker | Minimum Deposit | Notes |
|---|---|---|
| IBKR | $0 | Cash interest requires $10,000+ balance |
| Futu Moomoo | $0 | No requirement |
| Webull | $0 | Penny stocks min $1 |
2. US Stock Commission Structure
This is the cost factor most investors care about. As of 2026, here is how the three brokers compare:
Interactive Brokers (IBKR Pro Fixed)
- $0.005 per share, minimum $1 per order, maximum 1% of trade value
- Example: Buying 100 shares at $50 = $0.50 commission, but minimum is $1
- Tiered plan available for high-frequency traders ($0.0005–$0.0035/share, minimum $0.35)
- IBKR Lite plan (US residents only): $0 commission
Futu Moomoo (Non-US Residents)
- Commission: $0
- Platform Fee: $0.005/share (Fixed plan, minimum $1/order), or Tiered plan
- Fractional Shares: Less than 1 share, platform fee is 0.99% of trade value, capped at $0.99
- Regulatory Fees: SEC fee (on sells), TAF fee ($0.000195/share), Settlement fee ($0.003/share)
Webull HK
- Commission: $0
- Platform Fee: $0
- This "True Zero Fees" policy became permanent standard pricing in 2024
- Only third-party regulatory pass-through fees apply (SEC fee, FINRA TAF fee), charged on sell orders only
3. Hong Kong Stock Commission
If you also trade HK stocks, this is a critical factor:
| Broker | HK Stock Commission | Notes |
|---|---|---|
| IBKR | 0.08% (min HKD 18) | Standard structured pricing |
| Futu Moomoo | 0.03%–0.15% | Among the lowest in the industry |
| Webull | HKD$0 | Webull HK account only |
4. Cash Interest
Uninvested cash can also earn interest. All three brokers offer cash interest, with varying conditions:
- IBKR: Up to 3.1% (USD, Pro clients), requires $10,000+ cash balance
- Futu Moomoo: Cash management programs available, rates vary with market conditions
- Webull: Cash management features available, rates subject to official announcements
5. Chinese Interface and Customer Support
| Broker | Chinese Features | Customer Support |
|---|---|---|
| IBKR | Partial Chinese pages, mostly English in practice | Multi-language support, limited Chinese depth |
| Futu Moomoo | Full Chinese interface, Chinese-speaking team | 24/7 Chinese-first support |
| Webull | Basic Chinese interface | English-primary, limited Chinese support |
6. Hong Kong Account Opening Experience
- IBKR: Fully online account opening, 1–3 business days for approval. Requires ID/passport and proof of address. Hong Kong residents can open accounts through IBKR's Hong Kong entity.
- Futu Moomoo: Online account opening, conducted entirely in Chinese. Requires Hong Kong ID, supports electronic verification with fast approval.
- Webull: Webull HK accounts are limited to Hong Kong residents. Non-HK residents cannot use Webull's HK entity.
Interactive Brokers Deep Dive
Advantages
Global Market Coverage: IBKR supports over 150 markets worldwide, covering stocks, options, futures, forex, mutual funds, and bonds — the broadest market access among the three brokers.
Professional-Grade Trading Tools: IBKR's Trader Workstation (TWS) platform is the industry standard, offering advanced charting, backtesting, and algorithmic trading APIs, making it ideal for professional and quantitative traders.
Transparent Pricing: IBKR Pro's Fixed pricing plan is straightforward, while the Tiered plan offers the most competitive rates for high-volume traders.
Competitive Cash Interest: For investors holding significant uninvested cash, IBKR's interest rates are among the best in the industry.
Disadvantages
Steep Learning Curve: TWS is powerful but complex, requiring time to master for new users.
Limited Chinese Support: While some pages are available in Chinese, the depth is insufficient. Complex issues often require English communication.
Minimum Commission Threshold: The $1 minimum per order on the Fixed plan is relatively high for small trades.
Best For
- Professional investors needing multi-market access
- Quantitative and algorithmic traders
- Investors with large cash balances seeking interest income
- Users comfortable communicating in English
Futu Moomoo Deep Dive
Advantages
Best Chinese Experience: Futu Moomoo offers a fully localized Chinese interface, from account opening to trading to customer service, making it the top choice for Chinese-speaking investors.
Low HK Stock Trading Costs: With deep roots in Hong Kong, Futu offers some of the lowest HK stock commissions in the industry (0.03%–0.15%), while US stock trading is also competitive.
Information and Community Features: Moomoo includes real-time news, economic calendars, technical analysis tools, and an active investor community for learning and sharing.
Smooth Account Opening: Fully online process with electronic identity verification and fast approval times.
Disadvantages
US Stock Platform Fees: While commission is $0, the $0.005/share platform fee (minimum $1) is similar to IBKR's Fixed plan. High-frequency traders should consider the Tiered plan.
Narrower Global Coverage: Moomoo focuses primarily on US stocks, HK stocks, and A-shares, with less market coverage than IBKR.
Best For
- Chinese-speaking investors
- Investors who trade both US and HK stocks
- New investors seeking market information and community engagement in one platform
- Users who prioritize language in customer service
Webull Deep Dive
Advantages
Lowest US Stock Costs in the Industry: Webull HK offers true $0 commission and $0 platform fees — the lowest cost among the three brokers. Even large trades incur no platform fees.
Modern Interface: Webull's app and desktop interface is modern, intuitive, and feature-rich for technical analysis traders.
Penny Stock Trading: Minimum $1 investment for any US stock, ideal for small-capital investors building portfolios gradually.
Free Level 2 Quotes: Eligible users get free US Level 2 real-time quotes directly in the app.
Disadvantages
HK Residents Only: Webull HK accounts are restricted to Hong Kong residents. Non-HK residents cannot access Webull's HK entity.
Limited Chinese Features: While the basic interface supports Chinese, it does not match the depth of Futu Moomoo.
Narrower Market Coverage: Primarily focused on US stocks, HK stocks, and A-shares, with no support for futures, forex, or other asset classes.
Best For
- Hong Kong residents focusing on US stocks
- Investors seeking the lowest trading costs
- Beginners who want penny stock trading functionality
- Young investors who prefer modern, intuitive interfaces
Selection Guide: By Capital and Trading Habits
Capital Under $5,000: Webull or Futu Moomoo
For small-capital investors, minimizing fixed costs per trade is the priority. Webull's $0 commission plus $0 platform fee is unmatched. If you also trade HK stocks, Futu Moomoo's low HK commissions are more attractive.
Capital $5,000 – $50,000: Futu Moomoo or IBKR
Mid-range investors should choose based on their needs: if you primarily invest in US and HK stocks and value the Chinese experience, Futu Moomoo is the best choice. If you need broader market coverage and professional tools, IBKR is better.
Capital Over $50,000: Interactive Brokers
Large-capital investors should leverage IBKR's professional advantages: lower high-frequency trading commissions, competitive interest rates, and multi-market coverage. IBKR's Pro plan supports larger capital scales and more complex trading strategies.
By Trading Frequency
- Low frequency (< 5 trades/month): Webull is the most cost-effective with $0 per trade
- Medium frequency (5–20 trades/month): Futu Moomoo Tiered plan or Webull
- High frequency (> 20 trades/month): IBKR Tiered plan ($0.35 minimum/order) or Futu Tiered
Summary
| Need | Top Choice |
|---|---|
| Lowest US stock cost | Webull |
| Best Chinese experience | Futu Moomoo |
| Lowest HK stock cost | Futu Moomoo |
| Professional features and multi-market | Interactive Brokers |
| Penny stock trading | Webull |
| Large capital professional trading | Interactive Brokers |
There is no single "best" broker — only the one that best fits your individual needs. The comparison data above is based on official figures as of July 2026. We recommend checking each broker's official website for the most up-to-date rates before making your decision.
Frequently Asked Questions (FAQ)
Can Hong Kong residents use all three brokers simultaneously?
Yes. There are no mutual exclusivity restrictions between these brokers. Many Hong Kong investors hold accounts with both IBKR and Futu Moomoo — using IBKR for global markets and professional trading, and Futu for HK stocks and the Chinese experience. Webull can also be used alongside the other two. We recommend choosing different brokers for different markets and needs.
Is Webull's $0 commission permanent?
Yes. Webull HK officially made $0 commission and $0 platform fees its permanent standard pricing in 2024, no longer classified as a promotional offer. You can use the platform with confidence, knowing rates will not suddenly change.
Is IBKR's $0 minimum deposit really true?
Yes, there is no minimum deposit for account opening or your first deposit. However, the cash interest feature requires a cash balance over $10,000 to start accruing interest. Additionally, IBKR Pro Fixed has a $1 minimum commission per order, meaning each trade costs at least $1.
What is the difference between Futu Moomoo's Tiered and Fixed plans?
The Fixed plan charges $0.005/share (minimum $1/order) with simple, predictable pricing — suitable for low-to-mid frequency traders. The Tiered plan charges based on monthly trading volume, with higher volumes earning lower per-share rates — ideal for high-frequency traders. For non-US residents, calculate which plan is more cost-effective based on your average monthly trading volume and share quantity.
Which broker should I use to execute Algo Lab's stock selection signals?
Algo Lab's trading signals are broker-agnostic — you can execute them on any brokerage platform. If you prioritize lowest cost, Webull is the best choice. If you need HK stock trading as well, Futu Moomoo is more suitable. For professional-grade multi-market execution, IBKR is the top pick. Learn more about Algo Lab strategies at our Strategy Center.
Want Smarter US Stock Investing?
Choosing a broker is only the first step. What truly determines your investment returns is which stocks you buy. Algo Lab's AI stock selection engine scans over 8,000 US stocks daily, combining multi-factor models and machine learning to identify high-potential trading opportunities.
Join Algo Lab's free Telegram group for daily market analysis, or subscribe to VIP to unlock full AI stock selection signals and backtesting data.