Webull US
📍 USCommission-free trading with 24/7 market access, paper trading, and professional-grade tools — combine Webull's data richness with AInvest's AI engine for a decisive edge.
Integration Details
- RegionUS
- What You Can TradeStock, ETF, Option
- Account TypeEquity
- Partial SharesIn Shares, In Dollars
- Order TypesMarket, Limit, StopLimit, StopLoss, Multi-Leg, Bracket (OTOCO), OTO, OCO
- Order DurationGTC, Day
- Price DataReal Time
- Extended Hours4:00AM – 9:30AM EST, 4:00PM – 8:00PM EST
- RestrictionsLIMIT + DAY ONLY, 90 trades/min per user
Webull US Scorecard
| Category | Score | Expert Verdict |
|---|---|---|
| Trading Platforms | 4.5 / 5 | "Webull is the benchmark for what a zero-commission trading platform should look like — exceptional tools for the price."— Bankrate, 2025 |
| Execution Speed | 4.4 / 5 | "Real-time execution with solid NBBO performance for retail order sizes — routing holds up well during volatile sessions."— Forbes Advisor, 2025 |
| Asset Variety | 4.3 / 5 | "Stocks, ETFs, options, crypto, and OTC markets — plus 24/7 trading on select securities."— NerdWallet, 2025 |
| Charting & Tools | 4.6 / 5 | "Free Level 2, 50+ indicators, paper trading, and an excellent stock screener — the best free analytics suite in US retail brokerage."— Investopedia, 2025 |
| AI Trading Ability | Yes ✓ | "AInvest's real-time AI signal engine pairs with Webull's live data feeds for fast, data-driven trade execution."— AInvest Research, 2026 |
| User Experience | 4.5 / 5 | "The most complete free trading app for active US retail investors — charts, data, and community all in one platform."— App Store Reviews, 2025 |
What Makes Webull US Unique vs. Its Trade-offs
✓ Uniqueness & Strengths
- Free Level 2 + Fractional Shares: Free Level 2 quotes, dark pool data, and dollar-based fractional investing give retail traders institutional-quality information at zero cost.
- AI Integration with AInvest: AInvest + Webull US creates a powerful real-time AI trading setup. Step 1: Open a Webull US account. Step 2: Generate an API key in Webull → Account → Security → API. Step 3: Connect via AInvest → Broker Connect → Webull US. Step 4: AInvest AI signals execute in real time on Webull with full bracket order support — OTO, OCO, and OTOCO available for AI risk management frameworks.
- Full Order Suite: Market, Limit, StopLimit, StopLoss, Multi-Leg, Bracket (OTOCO), OTO, and OCO orders all supported — the most complete order-type set of any AInvest-integrated US broker.
- Extended Hours: Trading from 4AM to 8PM EST — full pre-market and after-hours access for reacting to overnight global events and earnings releases.
✗ Risk Considerations
- Account Fees: Options contracts carry $0.55/contract fee; crypto trading fees apply. Withdrawal fees and potential inactivity fees — verify current US fee schedule.
- Rate Limiting: AInvest API calls are limited to 90 trades/minute per user — not limiting for most strategies but relevant for high-frequency algo systems.
- Learning Curve: Webull's comprehensive feature set has a learning curve. New traders should start with the simple view before enabling all advanced analytics.
- Research Limitations: Strong quantitative and data tools but limited proprietary equity fundamental research — use AInvest AI news analysis to supplement.
Incentives & About Webull US
| Qualifying Activity | Reward / Bonus |
|---|---|
| Open + deposit $100 | 1 free stock + $5 crypto bonus |
| $500 deposit | Up to 5 free stocks (up to $500 value) |
| $2,000 deposit | Up to $1,000 cash deposit match |
| $10,000 deposit | Up to $3,500 in rewards and free stocks |
About Webull US
Webull's US operations were incorporated in 2017 in New York and quickly established itself as the go-to platform for active retail traders who wanted professional tools without the cost. Unlike Robinhood's gamified design, Webull leaned into data density — offering Level 2 quotes, advanced screeners, and detailed options analytics for free at a time when competitors charged monthly subscriptions for equivalent tools.
By 2026, Webull had exceeded 20 million global users and launched 24/7 trading on select US equities, a first for a mainstream retail broker. Its paper trading environment and comprehensive free data suite make it an ideal platform for new algorithmic traders who want to develop and test strategies before deploying real capital. The AInvest integration combines Webull's real-time data infrastructure with AI-powered signal generation for a complete active trading solution.