Secrets of the Stock Market's Biggest Winners
YES! Give me the FREE REPORT!
No thanks, I’m good with making a piddly 10% in the market each year.

With cutting-edge research tools and mobile apps, online stock trading is perfect for investors who want to strike out on their own with “self-directed trading” instead of paying fees for a managed portfolio. Whether you’re a first-time investor or an expert trader, you need a trading platform that’s user-friendly, trustworthy, and packed with data visualizations. To find the best online stock trading sites of 2019, we analyzed 25 of the most popular platforms and tapped into the expertise of a former day trader, a stock analyst, and a financial commentator with more than two decades of trading experience. In short, there is no single best online stock broker, but each of our top picks has its own strengths for different types of investors. We’ll help you determine the best fit for your investment goals and experience.

Finally, the other factor: risk tolerance. The stock market goes up and down, and if you’re prone to panicking when it does the latter, you’re better off investing slightly more conservatively, with a lighter allocation to stocks. Not sure? We have a risk tolerance quiz — and more information about how to make this decision — in our article about what to invest in.


That’s because there are plenty of tools available to help you. One of the best is stock mutual funds, which are an easy and low-cost way for beginners to invest in the stock market. These funds are available within your 401(k), IRA or any taxable brokerage account. An S&P 500 fund, which effectively buys you small pieces of ownership in 500 of the largest U.S. companies, is a good place to start.

The best investors are in it for the long haul. Checking your account too often might make you react to the fluctuations in the market too quickly. Personal finance expert Ramit Sethi has written that you should check your investments “probably every few months, with a major review every year.” On many sites, you can also set an alert if a stock dives. Other than that, just set up a quarterly recurring appointment to check in.

There are many fees an investor will incur when investing in mutual funds. One of the most important fees to consider is the management expense ratio (MER), which is charged by the management team each year, based on the number of assets in the fund. The MER ranges from 0.05% to 0.7% annually and varies depending on the type of fund. But the higher the MER, the more it impacts the fund's overall returns.

Investing is a way to set aside money while you are busy with life and have that money work for you so that you can fully reap the rewards of your labor in the future. Investing is a means to a happier ending. Legendary investor Warren Buffett defines investing as “… the process of laying out money now to receive more money in the future.” The goal of investing is to put your money to work in one or more types of investment vehicles in the hopes of growing your money over time.


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.

The 2010s have been a boom era for online stock brokers. According to Statista, between 10% and 15% of all U.S. adults used an online broker at least once in 2018. While some major brokerages have remained the same (Charles Schwab), others have gone through mergers and acquisitions (E*TRADE acquired OptionsHouse; TD Ameritrade and Scottrade merged; TradeKing is now Ally Invest), and a new generation of millennial-focused brokers (like Robinhood and Acorns) has kept the old guard on its toes by lowering commission rates and minimum deposits. After digging into 25 trading platforms, here are the factors that set our top picks apart from the crowd.

CAUTION – One of the most common mistakes new investors make is to buy too many shares for their first stock trade; this is a mistake. Taking on too much risk as a beginner who is just getting started will very likely result in experiencing unnecessary losses. Instead, begin with trading small position sizes, then slowly work your way up to buying more shares, on average, each trade.

Three other common strategies you may hear traders refer to include momentum trading (buying shares of very fast growing companies and selling them for a profit before they inevitably peak in price), swing trading (using technical analysis to identify a trading range, and then buying and selling shares as the stock trades within that range), and penny stock trading (buying shares of very small companies whose stocks trade for less than $1 a share).

CAUTION – Be careful. Many paid subscriptions marketed online, especially in social media, come from one-off traders that claim to have fantastic returns and can teach you how to be successful. 99.99% of them are a really poor investment and come with higher prices of $99 – $149 per month, or more. The worst damage though comes when you try to do what they do, invest way too much in a stock tip, and get burned when it doesn’t work out. See, Day Trading: 10 Lessons That Changed My Career.

Since Vanguard is the largest mutual fund provider in the world, it doesn’t charge a fee for most mutual fund trades. However, other kinds of trading are more expensive, with $7 per option and up to $20 per stock/ETF. For that reason, we don’t recommend Vanguard for beginning or low-volume traders. However, Vanguard is an excellent choice for retirement investors interested in long-term, high-volume earnings, or those looking for a place to take their IRA. In fact, Vanguard is one of our picks for the best IRA accounts.

John Paulson, a hedge-fund manager in New York, lead his firm to make $20 billion in profits between 2007 and early 2009. By betting heavily against first the housing market and then later financial stocks, his firm made a killing. Paulson’s success netted him a paycheck of some $4 billion, or more than $10 million a day. His funds during this time had returns of several hundred percent. These are his eight investing lessons:

In terms of diversification, the greatest amount of difficulty in doing this will come from investments in stocks. As mentioned earlier, the costs of investing in a large number of stocks could be detrimental to the portfolio. With a $1,000 deposit, it is nearly impossible to have a well-diversified portfolio, so be aware that you may need to invest in one or two companies (at the most) to begin with. This will increase your risk.

What are the highest risk investments?


You'll have to do your homework to find the minimum deposit requirements and then compare the commissions to other brokers. Chances are you won't be able to cost-effectively buy individual stocks and still be diversified with a small amount of money. Given these restrictions, it's probably worth starting out on your investment journey with mutual funds. However, like all aspects of investing, it's up to you to do the research and figure out the strategy that suits you best.

Stock mutual funds or exchange-traded funds. These mutual funds let you purchase small pieces of many different stocks in a single transaction. Index funds and ETFs are a kind of mutual fund that track an index; for example, a Standard & Poor’s 500 fund replicates that index by buying the stock of the companies in it. When you invest in a fund, you also own small pieces of each of those companies. You can put several funds together to build a diversified portfolio. Note that stock mutual funds are also sometimes called equity mutual funds.

TD Ameritrade has been a powerful player in the online stock trading ecosystem for years. The flipside to such robust platforms? Cost. Even though TD Ameritrade lowered its fees in 2017 from $9.99 to $6.95, pretty much every other major discount broker slashed its prices, too. TD Ameritrade remains one of the more expensive options out there, even with more than 100 commission-free ETFs. Though its pricing structure is more expensive than those of some of the other discount brokers, there are many traders who think it's a best-in-class trading platform.

That’s because there are plenty of tools available to help you. One of the best is stock mutual funds, which are an easy and low-cost way for beginners to invest in the stock market. These funds are available within your 401(k), IRA or any taxable brokerage account. An S&P 500 fund, which effectively buys you small pieces of ownership in 500 of the largest U.S. companies, is a good place to start.

Disclaimer: NerdWallet has entered into referral and advertising arrangements with certain broker-dealers under which we receive compensation (in the form of flat fees per qualifying action) when you click on links to our partner broker-dealers and/or submit an application or get approved for a brokerage account. At times, we may receive incentives (such as an increase in the flat fee) depending on how many users click on links to the broker-dealer and complete a qualifying action.

Learning about great investors from the past provides perspective, inspiration, and appreciation for the game which is the stock market. Greats include Warren Buffett (below), Jesse Livermore, George Soros, Benjamin Graham, Peter Lynch, John Templeton and Paul Tudor Jones, among others. One of my favorite book series is the Market Wizards by Jack Schwager.

Reviews.com makes money through affiliate partner links: If you click on a link, we may earn a commission. Our writers and editors create all reviews, news, and other content to inform readers, with no influence from our business team. Learn more about how we make money. We take pains to ensure our site is accurate and up to date, but some information might be different than what you find by visiting a vendor website. All products are presented without warranty.

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.