Fractional share trading has transformed the U.S. brokerage landscape, breaking down barriers for retail investors and opening a new era of growth for broker-dealers. As competition intensifies and investors demand more flexible, accessible solutions, fractional trading has become a must-have feature for any forward-thinking brokerage. Let’s explore how this innovation is reshaping the market, backed by data from the largest U.S. broker-dealers, and why it’s a strategic win for brokers and their clients.
Fractional trading allows investors to buy less than a whole share of a stock or ETF, often for as little as $1. This means investors can own a slice of high-priced stocks like Tesla or Amazon, regardless of their account size. The result: investing is democratized, and portfolio diversification is within reach for everyone.
The adoption of fractional trading by major U.S. brokers has been swift and widespread:
Broker | Launch Date | Securities Covered | Minimum Investment | Client Accounts (2024/25) |
Interactive Brokers | Nov 2019 | Nearly all U.S. stocks/ETFs | $1 | ~1 million |
Robinhood | Dec 2019 | Most U.S. stocks/ETFs | $1 | 31 million |
Fidelity | Jan 2020 | 7,000+ stocks/ETFs | $1 | 37 million |
Charles Schwab | Jun 2020 | S&P 500 stocks (~500) | $5 | 32.1 million |
Firstrade | 2020 | 4,000+ stocks/ETFs | $5 | N/A |
Tastytrade | 2023 | Thousands of stocks/ETFs | $5 | N/A |
Key Market Impact:
1. Expanding the Customer Base
Fractional trading removes the capital barrier, allowing anyone, from college students to retirees, to participate in the market. This inclusivity brings in a larger, more diverse clientele, driving up assets under management and long-term growth.
2. Increased Trading Volume and Engagement
With the ability to invest small amounts, clients trade more frequently and diversify more broadly. The surge in tiny trades—especially in high-priced stocks—has been dramatic, fueling higher trading volumes and deeper client engagement.
3. Competitive Differentiation
In a world where zero-commission trading is standard, fractional shares set brokers apart. Firms that offer this feature are seen as innovative and customer-centric, making them more attractive to new and existing investors.
4. Better Cash Utilization and Portfolio Diversification
Clients can invest every dollar, reducing idle cash and enabling true diversification—even with modest account balances. This leads to higher client satisfaction and stickier assets.
5. Enabling Modern Advisory Solutions
Fractional trading underpins robo-advisors, model portfolios, and direct indexing, allowing brokers to offer cutting-edge wealth management products to clients of all sizes.
To offer fractional trading, brokers need robust back-office and trading infrastructure. ETNA Trader offers a turnkey solution, integrating fractional shares as a core back-office function, making it easy for brokers to launch, manage, and scale this capability with confidence.
Fractional trading isn’t just a feature—it’s a growth engine. It attracts new investors, increases trading activity, and positions your firm at the forefront of innovation. If you’re ready to unlock these benefits, book a personal demo with the ETNA Trader team and see how our platform can help you offer seamless, compliant fractional share trading as a back-office function.
Book a demo with ETNA Trader today to get a personalized walkthrough and see how you can lead the next wave of brokerage innovation.
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