Traditional full-service stockbrokers do more than assist with the buying and selling of stocks or bonds. They often offer a wide array of services and products, including financial and retirement planning, investing and tax advice and regular portfolio updates. But they can charge substantial fees and transaction costs that can erode long-term investment gains.
By making it to this article you've taken an important first step in your investing journey -- picking a stock broker. There are many brokers to choose from, and each offers something a little bit different. See our guide below for more information on what you should be looking for, along with a list of our picks for best online stock brokers for beginners.

TD Ameritrade focused its 2019 development efforts on its most active clients, who are mobile-first – and in many cases, mobile-only. TD Ameritrade’s thinkorswim mobile platform has extensive features for active traders and investors alike. The workflow for options, stocks, and futures is intuitive and powerful. You’ll find lots of bells and whistles that make the mobile app a complete solution for most trading purposes, including streaming real-time data and the ability to trade from charts. The regular mobile platform is almost identical in features to the website, so it’s an easy transition. TD Ameritrade clients can trade all asset classes offered by the firm on the mobile apps.

NerdWallet’s ratings for brokers and robo-advisors are weighted averages of several categories, including investment selection, customer support, account fees, account minimum, trading costs and more. Our survey of brokers and robo-advisors includes the largest U.S. providers by assets under management, plus notable and/or emerging players in the industry. Factors we consider, depending on the category, include advisory fees, branch access, user-facing technology, customer service and mobile features. The stars represent ratings from poor (one star) to excellent (five stars). Ratings are rounded to the nearest half-star.
In the professional world, one of the key concepts is diversification. Harry Markowitz is a Nobel prize winning economist and one of his major discoveries was that adding new asset classes can dramatically alter the overall risk profile of a portfolio. His finding was that a portfolio that contained very low risk assets would normally benefit from lower volatility and higher returns if a higher risk asset was added. This is due to the likely lack of correlation between high and low risk asset classes.

1$0.00 commission applies to online U.S. equity trades, exchange-traded funds (ETFs), and options (+ $0.65 per contract fee) in a Fidelity retail account only for Fidelity Brokerage Services LLC retail clients. Sell orders are subject to an activity assessment fee (from $0.01 to $0.03 per $1,000 of principal). There is an Options Regulatory Fee (from $0.03 to $0.05 per contract), which applies to both option buy and sell transactions. The fee is subject to change. Other exclusions and conditions may apply. See Fidelity.com/commissions for details. Employee equity compensation transactions and accounts managed by advisors or intermediaries through Fidelity Clearing & Custody Solutions® are subject to different commission schedules.
Below is the list of online brokers doing business in the United States. Their names are ordered alphabetically. The table contains brokerage name, firms' website links, commissions on stock and ETF trades, and minimum amounts required to open a new brokerage account. There you could also find the discount stock trading companies ratings as well as links to detailed account reviews.
Trading successfully is a lot easier when investors have great tools at their disposal. A top stock broker should offer access to a wide variety of trade tools to help make the most of each and every trade. From real-time streaming quotes to last sale tickers, quality stock scanners, mobile trading apps, and level II quotes to name a few. Strong tools are essential for active investors.
When investing in the stock market, you have to think long term and avoid the temptation to check your portfolio several times per day. All this will do is waste your time, stress you out, and increase the odds that you will make a big mistake and sell at the wrong time. Plan to set up automatic contributions to your investment so you can buy more investments no matter where you are.
Diversification allows you to recover from the loss of your total investment (20% of your portfolio) by gains of 10% in the two best companies (25% x 40%) and 4% in the remaining two companies (10% x 40%). Even though your overall portfolio value dropped by 6% (20% loss minus 14% gain), it is considerably better than having been invested solely in company E.

Assess how much capital you're willing to risk on each trade. Many successful day traders risk less than 1% to 2% of their account per trade. If you have a $40,000 trading account and are willing to risk 0.5% of your capital on each trade, your maximum loss per trade is $200 (0.005 x $40,000). Set aside a surplus amount of funds you can trade with and you're prepared to lose. Remember, it may or may not happen.
Merrill Edge is the online brokerage arm of Bank of America, which is open to all investors, regardless if they are a current banking customer. Alongside $0 trades, Merrill Edge offers excellent stock research (Merrill Edge was rated #1 for environmental, social, and governance “ESG” research). Also, Merrill Edge offers the best rewards program. Reward perks include credit card bonus cash back, savings interest bonuses, priority customer service, and more. My wife and I have personally been members of the program since it launched in 2014. It’s awesome. Full review.
Fees beyond trade commissions include inactivity fees (common with active trading brokers such as Interactive Brokers, Lightspeed, and TradeStation) and IRA fees for having a retirement account. While most brokers do not charge predatory fees, it’s still important to do your due diligence. Just like a bank account, stock brokers also make a portion of their profits off miscellaneous fees.
Money is increasingly flowing out of the mutual fund industry and into exchange-traded funds (ETFs). Some investors (and most robo-advisors) use ETFs exclusively to build a balanced portfolio meant to walk the optimal line between risk and reward. To determine the best online broker for investing in ETFs, we looked at research capabilities specific to finding the best ETFs for a customer’s specific purpose. Top-notch screeners, analyst reports, fundamental and technical data, and the ability to compare ETFs are the main components of this award.
We all know someone who has “tried” investing in the stock market, lost a lot of money, and denounced it as a scam. The truth is that the stock market is not a scam; it is an incredible wealth-building tool. Most people who lose money in stocks do so because they get spooked by a dip in the market and then panic. Fearing that they will lose all of their investment, they hastily sell their shares, often at a loss. This should not be the case. Investors must keep in mind that over the long run, the stock market tends to increase in value, so they should think twice before selling their investments in a panic.
Rarely is short-term noise (blaring headlines, temporary price fluctuations) relevant to how a well-chosen company performs over the long term. It’s how investors react to the noise that really matters. Here’s where that rational voice from calmer times — your investing journal — can serve as a guide to sticking it out during the inevitable ups and downs that come with investing in stocks.
When you are choosing an online stock broker you have to think about your immediate needs as an investor. Are you a beginner? Maybe you need a broker that has great educational material about the stock market. Do you only have a small amount of money you can put aside to invest? Some online brokers allow for small minimum deposits which can be a great option for those with limited funds. Are you always on the go and in need of a robust mobile platform? Some online brokers have incredible mobile apps delivering nearly all the features that their desktop counterparts do.

A trading platform is software used for trading: opening, closing, and managing market positions through a financial intermediary such as an online broker. Online trading platforms are frequently offered by brokers either for free or at a discount rate in exchange for maintaining a funded account and/or making a specified number of trades per month. The best trading platforms offer a mix of robust features and low fees.
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