Stock Broker Features & Criteria

A Self-Invested Personal Pension (SIPP) is a UK pension wrapper that provides tax relief on contributions and tax-free growth. Contributions benefit from basic-rate tax relief automatically, and higher-rate taxpayers can claim additional relief via self-assessment. SIPPs are offered by a smaller number of brokers and are subject to minimum age access rules.

A Stocks & Shares ISA is a UK tax-efficient wrapper allowing you to invest up to £20,000 per tax year with no capital gains tax or income tax on profits and dividends. It is one of the most powerful tax-sheltering tools available to UK investors and is offered by most UK-regulated stock brokers.

Commission-free stock trading means you pay no per-trade fee when buying or selling shares. Brokers offering this model typically monetise through the spread on currency conversion, premium subscriptions, or payment for order flow. Always compare the total cost including FX fees, not just the headline commission rate.

A Dividend Reinvestment Plan (DRIP) automatically reinvests cash dividends you receive back into additional shares of the same stock - enabling compound growth without manual intervention. This feature is particularly valuable for long-term buy-and-hold investors who want to maximise the power of compounding.

Extended hours trading allows investors to buy and sell stocks outside regular exchange trading hours - typically during pre-market (4:00–9:30 am ET) and after-hours (4:00–8:00 pm ET) sessions. While liquidity is lower and spreads wider, this feature enables investors to react to earnings announcements and major news events before the regular session opens.

Fractional share trading allows investors to buy a portion of a single share rather than a full share - enabling exposure to high-priced stocks like Amazon or Berkshire Hathaway from as little as $1. This feature is common on app-based brokers and is particularly useful for portfolio diversification on a limited budget.

IPO access allows retail investors to participate in initial public offerings before a company's shares begin trading on a stock exchange. This is historically a privilege reserved for institutional investors, but a small number of brokers - particularly interactive Brokers and some fintechs - now provide retail IPO participation through platforms like US IPO Access.

Short selling allows investors to profit from falling stock prices by borrowing shares, selling them at the current price, and buying them back later at a (hopefully) lower price. It is a sophisticated strategy that amplifies both gains and losses and requires margin account approval. Not all brokers permit short selling for retail clients.

A stock screener is a research tool that lets investors filter equities by financial metrics such as P/E ratio, dividend yield, revenue growth, and market capitalisation. Brokers offering integrated screeners give traders a significant research advantage - enabling bottom-up stock selection without needing third-party tools.

Bonds trading allows investors to buy and sell fixed-income securities - government bonds (gilts, Treasuries, Bunds) and corporate bonds - directly through their brokerage account. Fixed-income exposure provides portfolio diversification, a predictable income stream, and reduced correlation to equity markets, making it a core allocation for balanced and conservative investors. Genuine bond trading (as opposed to bond ETFs) is offered by only a handful of retail brokers; Interactive Brokers and Saxo Bank stand out for their breadth of bond access, covering government, corporate, and emerging-market bonds across multiple currencies.

ETF (Exchange-Traded Fund) trading allows investors to buy diversified baskets of assets in a single transaction - tracking indices like the S&P 500, sector-specific themes, or bond markets. ETFs combine the diversification of mutual funds with the liquidity and transparency of stock trading. Most stock brokers offer a wide ETF range, but commission-free ETF lists and ISA/SIPP compatibility vary widely.

Fundamental research tools give investors access to company financials, analyst reports, earnings calendars, and valuation metrics directly within the broker's platform. Brokers offering deep integrated research - such as Morningstar ratings, IBKR's analyst consensus, or Saxo's market insights - help investors make evidence-based decisions without relying on third-party tools.

A large stock selection - typically 5,000 or more equities - gives investors meaningful access to global markets beyond their domestic exchange. Brokers offering access to major US, European, Asian, and emerging-market exchanges allow investors to build genuinely diversified international portfolios. DEGIRO and Interactive Brokers lead on breadth, covering 50+ exchanges worldwide.

Options trading gives investors the right - but not the obligation - to buy or sell an underlying stock at a set price before a specified expiry date. Exchange-listed equity options are one of the most versatile tools available to active investors: they can be used to hedge an existing position, generate income through covered calls, or express a directional view with defined risk. Access to options is a meaningful differentiator between full-service multi-asset brokers and simpler app-based platforms - Interactive Brokers, Saxo Bank, and IG are among the few regulated retail brokers offering real exchange-listed options rather than synthetic equivalents.

US stock access allows international investors to trade shares listed on NYSE and NASDAQ - the world's two largest equity exchanges, home to Apple, Microsoft, Amazon, and thousands of other global companies. Not all non-US brokers provide direct access to US equities; some route through depository receipts or CFDs instead of real shares. Brokers offering genuine share ownership of US-listed stocks include DEGIRO, Interactive Brokers, Trading 212, and eToro.