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Best online brokers for stock trading

The best online broker fits your investment goals

Maximizing your return may depend on how well-suited your broker is to your goals. For example, a newcomer looking to wade slowly into investing might be dismayed to find that some online brokers bleed your account with inactivity fees -- in other words, you could pay for doing nothing.

By contrast, higher volume traders might be more interested to know where they can find commission rates that are less than half the industry average.

For technology lovers, the bells and whistles on a broker's mobile app may be the basis for a decision, while investors driven by fundamentals might seek a brokerage firm that provides the best access to research resources.

To help you find a match that suits your needs and preferences, MoneyRates.com presents its featured brokers as well as the top-ranked online brokers in its comparison study based on the following criteria::

  1. Best for cheap commissions
  2. Best for new investors
  3. Best for margin investors
  4. Best mobile app
  5. Best desktop interface
  6. Best research capabilities

Featured Brokers

Fees
$4.95 per trade

  • Among the industry’s lowest trading fees with no account opening minimum and no hidden fees
  • A wide variety of investment products built with the do-it-yourself investor in mind
  • In-depth research and market analysis tools to support all types of investment strategies
  • 100 commission-free ETFs
Fees
$0.01 per share

$3 minimum
  • From bare-bones to feature-rich, from desktop-based to mobile, Zacks Trade offers a cutting edge platform that fits the way you work
  • It’s a global economy, and Zacks Trade helps you make the most of it. Clients in more than 200 countries can trade on 19 international exchanges, all at competitive commissions and all from a single account
Fees
$6.95 per trade

  • Desktop, web, and mobile platforms are designed for performance and built for all levels of investors
  • Our $6.95 flat-rate commission on all equity trades gives you access to our award-winning investing and trading experience
  • Trade and invest how you want with access to a variety of investment choices
  • 24/7 account support and free access to trading specialists

Note and update: The figures mentioned in this study are subject to change at any time at the sole discretion of the brokerage firm. Also, since this study was conducted, Scottrade and TD Ameritrade have joined forces and now operate under the TD Ameritrade brand.

Below are the top-ranked online brokers in each category. Listed first are the overall winners based on average rankings in those six categories.

Best online brokers overall

Out of 18 online brokers evaluated, four rose to the top based on the six categories combined (the top ten are listed at the end of the article):

  1. Merrill Edge
    The online brokerage branch of Merrill Lynch was the overall winner because it did better than most of the brokers studied in every category except margin rates, and that consistency earned it the best ranking on average.

    Of all the things online brokers advertise about their offerings, commission rates are probably the attribute they most often use to appeal to investors. In that light, it is interesting that Merrill Edge ranked first because its commission rate is far from the lowest.

  2. Charles Schwab
    Like Merrill Edge, Charles Schwab outperformed most of the brokers studied in every category but one to earn the second overall ranking.

  3. Ally Invest (tie)
    Ally acquired TradeKing in 2016 to add brokerage to its well-known online-banking capabilities. Based on Ally Invest's high overall ranking in this study, the acquisition appears to have been a good choice.
  1. TD Ameritrade (tie)
    While not the cheapest option, customers might find that the quality of TD Ameritrade's research resources and online tools helps them make more effective investment decisions.

Best online brokers for cheap commissions

By and large, online brokers these days offer flat-rate, per-trade commissions rather than charging based on the size of the trade. That works especially well for people who make larger trades. But smaller investors need to watch trade commissions carefully because they can eat up a significant amount of funds, especially since you will pay that commission both when you buy and sell a stock.

Here are the online brokers with the lowest flat-rate commissions in the MoneyRates study:

  1. Just2Trade
    At $2.50, Just2Trade's flat-rate commission is a significant savings over the category average of $6.61.

  2. Firstrade
    The flat-rate commission charged by Firstrade is $2.95, so not much more expensive than the cheapest rate.

After those two brokers, there was a significant jump to a group of firms that have set their per-trade pricing at $5 or slightly under.

RankBrokerageCommissionRankBrokerageCommission
1Just2Trade$ 2.509E*TRADE$ 6.95
2Firstrade$ 2.959Merrill Edge$ 6.95
3Sogotrade$ 4.889Scottrade$ 6.95
4Charles Schwab$ 4.959TD Ameritrade$ 6.95
4Fidelity$ 4.9514Vanguard$ 7.00
4Motifinvesting$ 4.9515USAA$ 8.95
4Ally Invest$ 4.9516T. Rowe Price$ 19.95
8TradeStation$ 5.00*Interactive BrokersN/A 1
9Capital One Investing$ 6.95**Lightspeed TradingN/A 2

* N/A 1: Interactive Brokers charges $0.005 per share, with a minimum of a $1 commission. This means they would be cheaper than a fixed rate for small trades but not for large trades.

** N/A 2: Lightspeed Trading charges $0.0045 per share, with a minimum commission of $1, which would make them cheaper for small trades but potentially more expensive for large trades.

Best online brokers for new investors

Getting started can be one of the most difficult parts of investing. Online brokers try to make it easy by offering user-friendly interfaces, but there are also dollars-and-cents barriers to consider. Assuming most new investors start with relatively small amounts of money to invest, MoneyRates.com looked at which pricing schedules are likely to take the smallest bite out of the modest resources newer investors may have.

  1. Firstrade
    As mentioned previously, Firstrade had the second-lowest commission rate in the study. When you combine that with no monthly maintenance or inactivity fees and no account minimum, the economics work well for new investors.

  2. Ally Invest
    Ally's $4.95 commission rate is below the category average, and with no maintenance fees, inactivity fees or account minimum, it is welcoming to newer investors. In particular, customers of Ally's banking services might find the transition to their brokerage service to be especially seamless.

  3. Capital One (tie)
    At $6.95 per trade, Capital One's commission rate was about $0.30 more than the category average. However, with no maintenance or inactivity fees and no account minimum, it is a fairly cost-effective place to get started, especially for lower volume traders. It is currently offering cash bonuses for new accounts.
  1. TD Ameritrade (tie)
    This broker was an exact match for Capital One with respect to commissions, monthly fees, and minimum funding policy. They, too, offer an incentive for new investors -- in this case, it is 60 days of free trading plus cash bonuses for certain account sizes.

A note about online broker fees

A monthly maintenance fee is a set dollar amount charged in addition to usage-based charges like commissions and, since it is typically a dollar-based rather than percentage-based fee, it is proportionally more burdensome on small investors.

Inactivity fees are charged by some brokers to investors who don't meet a certain volume of trading activity. Like monthly maintenance fees, these are set dollar amounts that disproportionately affect small investors. Also, newer investors who want to wade into the market gradually are more likely to fall below the required trading volume.

Finally, while many online brokers allow you to start an account with any amount of money, some impose a minimum account size which could be a barrier to getting started.

So, in considering the best online brokers for new investors, MoneyRates looked for those with reasonable commissions, no monthly maintenance or inactivity fees, and no minimum funding requirement. MoneyRates also found that a few online brokers are offering special incentives for new investors. Since these incentives are temporary, they were not considered dominant factors, but they are noted above where applicable.


Best online brokers for margin investors

For investors who use margin, the margin interest rate is a key hurdle to overcome in order to earn a positive rate of return. Here are the brokers that had the cheapest margin rates:

  1. Interactive Brokers
    With a margin rate of just 2.92 percent on a $25,000 loan balance, Interactive Brokers offered a much cheaper alternative than the category average rate of 8.14 percent.

  2. Just2Trade
    At 6.75 percent, Just2Trade's margin rate couldn't come close to that of Interactive Brokers, but it still represented a significant savings over the average.

Best online brokerage for mobile apps

Online brokerage mobile apps are heavy on price and volume charts but typically a little thin on facilitating access to fundamental research. MoneyRates.com looked at how robust the overall range of features was; but since many mobile brokerage apps offer much the same features, a key factor is how reliably these apps perform. So, MoneyRates.com also considered ratings from both iOS and Android users in its ranking of online brokerage mobile apps. Overall, two apps rose to the top:

  1. (tie) E*Trade
    No earth-shattering features, but overall one of the more robust line-ups including portfolio status, watch-list information and alerts, and current market data.
  1. (tie) Motif
    Motif is geared toward helping customers build portfolios around broad thematic themes, and their mobile app does an efficient job of allowing users to construct model portfolios on the fly and then implement them instantly.

Best online brokerage for desktop interface

Since the desktop interfaces of online brokers offer largely the same capabilities, MoneyRates put an emphasis on transparency, looking at which desktop interface made it easiest for users to locate key information for decision-making. The winners were:

  1. Scottrade
    Unlike some sites that make you scroll endlessly or hunt and peck through different pages to find basic information, Scottrade offers a clear, user-friendly layout.

  2. (tie) Just2Trade
    Just2Trade's site offers clear, menu-driven access to information.
  1. (tie) Merrill Edge
    While their broader range of services prevents Merrill's website from being as concise as the other two on this list, they do a good job of laying out their capabilities in a straightforward manner.

Best online brokerage for research capabilities

The quality of research capabilities is a very subjective thing, so MoneyRates combined ratings from multiple reviewers to come up with a consensus ranking.

  1. Charles Schwab
    Ideally, research capabilities should include everything from quantitative tools to fundamental research reports, and Charles Schwab scores well for the full range of resources it offers.

  2. TD Ameritrade
    After their research score came close to matching Schwab's this time around, it will be interesting to see if joining forces with Scottrade brings them any extra capabilities to put them over the top next year.

Online brokerage is an emerging field, so the dynamics change quickly. Choose carefully to begin with, and then stay up to date to make sure your initial choice is still the best option.

Top ten online brokers overall

Didn't see your favorite? Check out the top ten online brokers overall here:

Overall RankBrokerage
1Merrill Edge
2Charles Schwab
3Ally Invest
3TD Ameritrade
5Fidelity
6TradeStation
7E*TRADE
8Capital One Investing
9Vanguard
10Firstrade