We investigated trader numbers across the 143 providers in our evolving database, combining this data with our ratings to rank the largest brokers by client count – helping you find the most established and popular brokers.
Top Brokers With The Most Clients
Below are the 6 most popular brokers in Spain based on the number of clients that trade with them. Note that user figures are subject to change.
Tested with a live trading account
Accepts traders from Spain
Your capital is at risk. Trade only with funds you can afford to lose.
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- Demo account
- Platforms: WebTrader, App
- Min. deposit: $100
81% of retail CFD accounts lose money. -
- Demo account
- Instruments: CFDs, Forex, Indices, Shares, Commodities
- Regulator: ASIC, CySEC, FSCA, FSC
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- Demo account
- Instruments: Stocks, Options, ETFs, ADRs, OTCs
- Regulator: SEC, FINRA, MAS, SFC, ASIC, CIRO, JFSA, SC
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- Demo account
- Platforms: InstaTrade Gear, MT4
- Min. deposit: $1
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- Demo account
- Regulator: CySEC
- Platforms: MT4, MT5
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- Demo account
- Instruments: Cryptos, Perpetual Futures, Tokenized Stocks
- Regulator: CBI
Learn how we test brokers and why you can trust our ratings.
Why Do These Brokers Lead By Number Of Traders?
Here’s an overview of why these brokers with high client counts trumped the competition in our latest tests:
- Plus500 is our top broker with the most clients in Spain for 2026. 4.1/5 Established in 2008 and headquartered in Israel, Plus500 is a prominent brokerage that boasts over 25 million registered traders in over 50 countries. Specializing in CFD trading, the company offers an intuitive, proprietary platform and mobile app. It maintains competitive spreads and does not charge commissions or deposit or withdrawal fees. Plus500 also continues to shine as one of the most trusted brokers with licenses from reputable regulators, including the FCA, ASIC and CySEC.
- FBS 4.3/5 Founded in 2009, FBS is an award-winning CFD broker operating in over 150 countries with a client base exceeding 27 million traders. Traders are supported at every stage of their journey with 24/7 assistance, market analytics, trading calculators, and competitive pricing with zero commissions.
- Moomoo 3.2/5 Moomoo is an SEC-regulated app-based investment platform that offers a straightforward and affordable way to invest in Chinese, Hong Kong, Singaporean, Australian and US stocks, ETFs and other assets. Margin trading is available and the brand offers a zero-deposit account as well as several bonuses.
- InstaTrade 3.0/5 InstaTrade, based in the British Virgin Islands, is an online broker specializing in passive investment products and active trading through CFDs. Its zero-spread accounts, excellent research notably through InstaTrade TV, and access to the popular MT4 alongside its own web-accessible InstaTrade Gear, make it an attractive option for short-term traders at every level.
- InstaForex 3.2/5 InstaForex is a CFD broker providing access to forex, stocks, cryptocurrencies, commodities, energies, indices, and more. With competitive fees and a huge range of available assets, the brand offers safe and reliable trading. Millions of traders have opened an account with the firm which offers a suite of active trading and investment opportunities.
- Pionex 3.4/5 Pionex is a crypto trading platform that specializes in trading robots, offering a variety of ready made bots and strategies to traders as well as integrated AI to help customize a strategy or come up with your own. These can be used on spot crypto markets as well as crypto futures.
Brokers With The Largest User Base Comparison
Compare the most widely used brokers across key metrics:
| Broker | Minimum Deposit | Demo Account | Instruments | Platforms | Regulators |
|---|---|---|---|---|---|
| Plus500 | $100 | ✔Yes | CFDs on Forex, Stocks, Indices, Commodities, ETFs, Options, Crypto | WebTrader, App | FCA, CySEC, EFSA, ASIC, FMA, FSCA, MAS, ISA, FSA, DFSA, SCA, JFSA, SCB, CIRO, BAPPEBTI, OJK, BI |
| FBS | $5 | ✔Yes | CFDs, Forex, Indices, Shares, Commodities | FBS App, MT4, MT5 | ASIC, CySEC, FSCA, FSC |
| Moomoo | $0 | ✔Yes | Stocks, Options, ETFs, ADRs, OTCs | Desktop Platform, Mobile App | SEC, FINRA, MAS, SFC, ASIC, CIRO, JFSA, SC |
| InstaTrade | $1 | ✔Yes | CFDs, Forex, Stocks, Indices, Commodities, Cryptos, Futures | InstaTrade Gear, MT4 | - |
| InstaForex | €200 | ✔Yes | CFDs on Stocks, Indices, Commodities, Forex, Cryptocurrencies, US Synthetic Shares & ETFs, Shares Baskets | MT4, MT5 | CySEC |
| Pionex | $0 | ✔Yes | Cryptos, Perpetual Futures, Tokenized Stocks | Own | CBI |
Community Sentiment
See how users rate these brokers based on the average customer ratings submitted on DayTrading.com, plus ratings from Trustpilot, the Apple App Store and Google Play.
| Broker | Our Users' Rating | Trustpilot Score | Trustpilot Reviews | iOS App Rating | Android App Rating |
|---|---|---|---|---|---|
| Plus500 | 20254 | ||||
| FBS | 10345 | ||||
| Moomoo | 734 | ||||
| InstaTrade | 16 | ||||
| InstaForex | 553 | ||||
| Pionex | 639 |
Plus500
Plus500 offers a super-clean experience for traders with a CFD trading platform that sports a modern design and dynamic charting. That said, the broker’s research tools are limited, fees trail the cheapest brokers, and there’s room for enhancement in its educational resources.
Christian Harris, Reviewer
Plus500 quick facts
- Demo Account
- ✔Yes
- Instruments
- CFDs on Forex, Stocks, Indices, Commodities, ETFs, Options, Crypto
- Regulator
- FCA, CySEC, EFSA, ASIC, FMA, FSCA, MAS, ISA, FSA, DFSA, SCA, JFSA, SCB, CIRO, BAPPEBTI, OJK, BI
- Platforms
- WebTrader, App
- Minimum Deposit
- $100
- Minimum Trade
- Variable
- Account Currencies
- USD, EUR, GBP, AUD, ZAR, CZK
Pros
- The customer support team continue to provide reliable 24/7 support via email, live chat and WhatsApp
- Plus500 has bolstered its suite of short-term trading products, including introducing VIX options with enhanced volatility and extended 24/5 hours trading on select stock and ETF CFDs, including SpaceX
- The broker offers low commission trading on a diverse range of markets, minimizing additional fees while appealing to established traders
Cons
- Educational resources are limited compared to best-in-class brokers like eToro, impacting the learning curve for beginners
- The absence of social trading means users can’t follow and replicate the trades of experienced traders
- Compared to some competitors, especially IG, Plus500’s research and analysis tools are limited
FBS
FBS is an excellent choice for day traders at every level and budget, with just a $5 minimum deposit and intensive academy for aspiring traders alongside access to MT4 and MT5.
Christian Harris, Reviewer
FBS quick facts
- Demo Account
- ✔Yes
- Instruments
- CFDs, Forex, Indices, Shares, Commodities
- Regulator
- ASIC, CySEC, FSCA, FSC
- Platforms
- FBS App, MT4, MT5
- Minimum Deposit
- $5
- Minimum Trade
- 0.01 Lots
- Account Currencies
- USD, EUR, AUD
Pros
- FBS offers lightning-fast execution speeds from just 10 milliseconds, placing it among the industry leaders for highly active traders like scalpers who demand rapid order processing.
- The trading firm has picked up over 90 awards and amassed more than 27 million clients, making it one of the largest and most established brokers globally.
- The introduction of the FBI Assistant has given active traders useful, AI-powered intelligence to assess charts and patterns with potential trade ideas that can be executed in one click.
Cons
- Although the FBS app offers a terrific mobile trading experience for aspiring traders and MT4/MT5 cater to advanced traders, the absence of cTrader and TradingView, which are increasingly offered by alternatives like Pepperstone, will deter day traders familiar with these platforms.
- Despite enhancing the selection of currency pairs, now providing over 70, FBS still trails industry leaders like BlackBull Markets in its market offering with a particularly narrow selection of commodities and indices.
- There are limited currencies available - primarily EUR and USD, AUD - which isn't practical for minimizing currency conversion fees for many global traders, and is especially striking given the broker’s user base spans over 150 nations.
Moomoo
Moomoo remains an excellent choice for new and intermediate stock traders who want to build a diverse investment portfolio. What really stands out is the broker's user-friendly app and the low trading fees.
Jemma Grist, Reviewer
Moomoo quick facts
- Demo Account
- ✔Yes
- Instruments
- Stocks, Options, ETFs, ADRs, OTCs
- Regulator
- SEC, FINRA, MAS, SFC, ASIC, CIRO, JFSA, SC
- Platforms
- Desktop Platform, Mobile App
- Minimum Deposit
- $0
- Minimum Trade
- $0
- Account Currencies
- USD, CAD, AUD, JPY, MYR, HKD, SGD, CNY
Pros
- Moomoo is a Member of FINRA and the Securities Investor Protection Corporation (SIPC), adding another level of security for prospective clients
- There are reduced options contract fees from $0.65 to $0
- Moomoo's analytics and insights are impressive and detailed compared to other brands
Cons
- The account range is narrow compared to other brokerages in its class with no managed portfolios or robo-advisor solutions
- There is no negative balance protection, which is a common safety feature at top-tier-regulated brokers
- Moomoo has faced multiple regulatory penalties in recent years, including fines and orders in 2026 that stopped it temporarily accepting some Japanese and Chinese clients
InstaTrade
InstaTrade offers active trading on a comprehensive platform, fast execution that can hit sub 10ms, and VPS hosting, making it a strong fit for algo traders deploying fast-paced, high-volume trading strategies.
Christian Harris, Reviewer
InstaTrade quick facts
- Demo Account
- ✔Yes
- Instruments
- CFDs, Forex, Stocks, Indices, Commodities, Cryptos, Futures
- Platforms
- InstaTrade Gear, MT4
- Minimum Deposit
- $1
- Minimum Trade
- 0.01
- Account Currencies
- USD, EUR, RUB
Pros
- InstaTrade delivers an excellent suite of charting tools for day traders with its web trader comprising 250+ indicators, 11 chart types and a user-friendly design.
- Despite an average investment offering of around 300 assets, InstaTrade offers a particularly strong suite of currency pairs, catering to advanced traders seeking opportunities in volatile exotics.
- VPS hosting caters to algo trading strategies with a dedicated physical server providing rapid execution speeds as low as 9 milliseconds.
Cons
- InstaTrade is registered offshore and not authorized by a trusted regulator, resulting in limited statutory safeguards for retail investors.
- InstaTrade sports one of the most cluttered websites and client cabinets in the industry, potentially overwhelming new traders, especially compared to XTB’s intuitive trading journey and resources.
- Our analysis of third-party user reviews about the InstaTrade and wider InstaForex brands found instances of withdrawal complaints and account blocks.
InstaForex
InstaForex is a good choice for currency traders familiar with the MT4 and MT5 platforms. The broker offers more forex pairs than most rivals with very tight spreads and a low minimum deposit.
William Berg, Reviewer
InstaForex quick facts
- Demo Account
- ✔Yes
- Instruments
- CFDs on Stocks, Indices, Commodities, Forex, Cryptocurrencies, US Synthetic Shares & ETFs, Shares Baskets
- Regulator
- CySEC
- Platforms
- MT4, MT5
- Minimum Deposit
- €200
- Minimum Trade
- 0.01 Lots
- Account Currencies
- USD, EUR
Pros
- Reputable brand that over seven million investors have signed up to in the last 15+ years
- MT4 and MT5 integration
- Good range of payment methods including bank cards
Cons
- The broker’s website and Client Cabinet can feel tricky to navigate
- Mixed user reviews on third-party sites, including some complaints of withdrawal issues
Pionex
Pionex is an excellent option for crypto traders with an interest in cutting-edge AI like ChatGPT and automated trading.
William Berg, Reviewer
Pionex quick facts
- Demo Account
- ✔Yes
- Instruments
- Cryptos, Perpetual Futures, Tokenized Stocks
- Regulator
- CBI
- Platforms
- Own
- Minimum Deposit
- $0
- Minimum Trade
- 0.1 USDT
Pros
- Powerful integrated AI chatbot 'PionexGPT' helps users programme trading bots on Pine script
- Expanded to support 280+ tokenized instruments, including U.S. stocks like AAPLX and TSLAX, traditional ETFs, and commodities like Gold with 24/7 trading and USDT settlement (not available to US clients)
- 16+ free integrated trading bots with no coding or programming requirements, which can also be deployed on tokenized U.S. equities and real-world assets, not just cryptocurrencies
Cons
- Limited contact options
- Weak regulatory oversight raises safety concerns
- Withdrawal fees and limits may apply
Should You Choose A Broker With A Large Client Base?
In our experience, opting for a broker with a substantial client base comes with several key advantages:
- Trust & Reliability: Our investigations found that larger brokers are often heavily regulated by ‘green tier’ bodies in DayTrading.com’s Regulation & Trust Rating, enhancing security and investor protection. Interactive Brokers is a great example, with over 3.5 million clients and licenses from over 10 respected regulators.
- Extensive Asset Selection: Our tests show that the biggest brokers typically offer a wider range of tradable assets to help you build a diverse portfolio, from stocks and funds to currencies and derivatives. Just look at eToro – it provides over 7,000 instruments to its more than 38 million customers.
- Better Resources: More clients typically means access to comprehensive educational tools and community insights, making them attractive options for newer traders. XTB demonstrates this in abundance with a well-written suite of training articles for its over 1 million traders.
- Continuous Platform Innovation: We’ve seen that brokers with more users generally invest in improving their platforms, ensuring cutting-edge technology and features to retain their large client case. Plus500 is a prime example of this, seriously upgrading the usability and features of its mobile app and web trader in the years we’ve been evaluating it.
- Greater Liquidity & Faster Execution: High trading volumes can lead to smoother order execution and better pricing, which are vital for active trading styles like day trading. IG remains a great option in this regard, providing 0.014-second average execution speeds to its hundreds of thousands of clients.
For my personal investments, I only choose well-established brokers with large client bases.
Why? Because they typically offer reliability, peace of mind, and user-friendly tools – essential qualities for both beginner and experienced traders.
James BarraHead of Content and Media LeadDoes A Bigger Broker Always = A Better Broker?
Not necessarily. While a large client base can indicate trustworthiness, stability, and better features, bigger doesn’t always mean better.
Here’s why:
- Higher Fees: Unfortunately we’ve seen that some large brokers charge higher spreads, commissions, or inactivity fees. We don’t like seeing major brokers abusing their position in the market by levying high fees on day traders because we know it can impact their profitability.
- Slower Customer Support: We’ve found that a massive user base can sometimes lead to longer response times and less personalized service. Fortunately, the firms that made our toplist performed well during our direct tests of their support.
- Less Flexibility: Bigger firms may not cater to more niche day trading strategies like scalping, provide personalized account features, or such generous leverage terms that active traders may be seeking.
- Marketing Over Substance: To our annoyance, some large brokers like Robinhood appear to invest heavily in advertising rather than platform improvements or user experience. Where this is the case, we lower their ratings.
In conclusion, it’s always best to compare brokers based on your specific needs – not just size alone.
FAQ
How Big Are The Brokers With The Most Clients?
While many big brokers boast hundreds of thousands of clients, the true heavyweights service many more customers.
Based on our latest research, there are a number of brokerages with millions of clients. Among the biggest are eToro (38 million), FBS (27 million), and Plus500 (26 million).