9 Best Online Brokers for Stock Trading of August 2019

More guidance to help you pick the right online broker

Here are more NerdWallet resources to answer your questions about online brokerage accounts.

How much money do I need to get started investing? Not much. Note that many of the brokers above have no account minimums for both taxable brokerage accounts and IRAs. Once you open an account, all it takes to get started is enough money to cover the cost of a single share of a stock and the trading commission. (See “How to Buy Stocks” for step-by-step instructions on placing that first trade.)

Shouldn’t I just choose the cheapest broker? Trading costs definitely matter to active and high-volume traders. If you’re a high-volume trader — buying bundles of 100 to 500 shares at a time, for example — Interactive Brokers and TradeStation are cost-effective options. Ally Invest offers $3.95 trades ($1 off full price) for investors who place more than 30 trades a quarter.  Commissions are less of a factor for buy-and-hold investors, a strategy we recommend for the majority of people. Most online brokers charge from $5 to $7 per trade. But other factors — access to a range of investments or training tools — may be more valuable than saving a few bucks when you purchase shares.

How can I build a diversified portfolio for little money? One easy way is to invest in exchange-traded funds. ETFs are essentially bite-sized mutual funds that are bought and sold just like individual stocks on a stock market exchange. Like mutual funds, each ETF contains a basket of stocks (sometimes hundreds) that adhere to particular criteria (e.g., shares of companies that are part of a stock market index like the S&P 500). Unlike mutual funds, which can have high investment minimums, investors can purchase as little as one share of an ETF at a time.

We like the low-cost, diversified nature of ETFs. And because they are such an essential portfolio-building tool, we rated brokers on their ETF offerings, specifically the number of commission-free ETFs they offer. Standouts include TD Ameritrade, which offers over 300, Charles Schwab (265) and E-Trade (250).

Is my money insured? What kind of account? How quickly can I start trading? The short answers are:

• Your money is indeed insured, but only against the unlikely event a brokerage firm or investment company goes under. A broker’s SIPC coverage (Securities Investor Protection Corporation) doesn't cover any loss in value of your investments.
• Your account choices boil down to taxable versus tax-favored (e.g., an IRA). Our guide to brokerage accounts goes into more detail about what’s involved in setting up a taxable account. Opening an IRA involves choosing which type, such as a Roth IRA, traditional IRA or SEP IRA. If you're new to this, we’ve got you covered in our guide to IRAs.
• After you’ve opened the account, you’ll need to initiate a deposit or funds transfer to the brokerage firm, which can take anywhere from a few days to a week. Once that is complete, it’s off to the investing races! And by that we mean taking a thoughtful and disciplined approach to investing your money for the long-term.

How do I determine if a brokerage firm is right for me before I open an account? Some key criteria to consider when evaluating any investment company are how much money you have, what type of assets you intend to buy, your trading style and technical needs, how frequently you plan to transact and how much service you need. Our post about how to choose the best broker for you can help you sort through the features brokerage firms offer and rank your priorities.