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.

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?


At $4.95 per trade, with no inactivity charge and a $50 full outgoing transfer fee, Ally Invest’s fee structure is about as low as you'll find. Even though a rash of brokers dropped their commissions in 2017 to be competitive with Ally Invest’s $4.95 flat rate, Ally keeps its edge with a zero account minimum and enticing discount for active investors — equity trades drop to $3.95 for users with 30-plus trades each quarter or a balance of $100,000.

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.

Since 2013, Reviews.com has helped more than 1.4 million people find the best online stock trading site for their needs. After investigating 25 major brokers and consulting three third-party financial experts, we’ve continued updating this review every month over the last five years to ensure it stays fresh. The author of this review does not own stock in any of the brokerage firms mentioned here, or in any other financial service companies.

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.

Different investors are going to prioritize different things. A day trader, for example, requires speed and flexibility. A first-time trader may value educational resources and reliable customer support. But one thing every trader should care about is cost. Not paying attention to investment expenses is like revving your car engine while filling it with gas. That's why we spent a lot of time balancing price with what each site offered.

You probably know that investing in stocks is a way to get rich but very few new investors actually realize how you make money from your shares of stock. Now, you don't have to wonder any longer. Let's show you the two ways you can profit from owning and investing in stocks, and some of the factors that determine how fast a company grows. Find out how to make money from owning stocks ...

Brokers are either full-service or discount. Full-service brokers, as the name implies, give the full range of traditional brokerage services, including financial advice for retirement, healthcare and everything related to money. They usually only deal with higher-net-worth clients, and they can charge substantial fees, including a percent of your transactions, a percent of your assets they manage, and sometimes a yearly membership fee. It's common to see minimum account sizes of $25,000 and up at full-service brokerages. Still, traditional brokers justify their high fees by giving advice detailed to your needs.

Each publicly traded company lists their shares on a stock exchange. The two largest exchanges in the world are the New York Stock Exchange (NYSE) and the NASDAQ; both are based in the United States (Wikipedia). Attempting to grasp just how large the NYSE and NASDAQ both are is certainly not easy. The NYSE has a market cap of nearly $31 trillion and the NASDAQ’s is nearly $11 trillion. And yes, that is not a typo, I said, “trillion”.

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.

In the stock market, for every buyer, there is a seller. When you buy 100 shares of stock, someone is selling 100 shares to you. Similarly, when you go to sell your shares of stock, someone has to buy them. If there are more buyers than sellers (demand), then the stock price will go up. Conversely, if there are more sellers than buyers (too much supply), the price will fall.

How can I make money super fast?


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.

Disclaimer: Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. All CFDs (stocks, indexes, futures) and Forex prices are not provided by exchanges but rather by market makers, and so prices may not be accurate and may differ from the actual market price, meaning prices are indicative and not appropriate for trading purposes. Therefore Fusion Media doesn`t bear any responsibility for any trading losses you might incur as a result of using this data.

In the stock market, for every buyer, there is a seller. When you buy 100 shares of stock, someone is selling 100 shares to you. Similarly, when you go to sell your shares of stock, someone has to buy them. If there are more buyers than sellers (demand), then the stock price will go up. Conversely, if there are more sellers than buyers (too much supply), the price will fall.

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.

StockInvest.us provides financial data and technical analysis on stocks. Usage of our website will not be held liable for any losses in your investments accounts based on any information provided on the website. All users should speak with their financial adviser before buying or selling any securities. Users should not base their investment decision upon StockInvest.us to make an investment decision. By accessing the site you agree and are held liable for your own investment decisions and agree to Terms of Use and Privacy Policy. Please read full disclaimer here.

First things first, let’s quickly define stock trading. Stock trading is buying and selling shares of publicly traded companies. Popular stocks most Americans know include Apple (AAPL), Facebook (FB), Disney (DIS), Microsoft (MSFT), Amazon (AMZN), Google (GOOGL), Netflix (NFLX), and more recently listed companies such as Uber (UBER) and Pinterest (PINS).

Now, imagine that you decide to buy the stocks of those five companies with your $1,000. To do this you will incur $50 in trading costs, which is equivalent to 5% of your $1,000. If you were to fully invest the $1,000, your account would be reduced to $950 after trading costs. This represents a 5% loss, before your investments even have a chance to earn a cent!

CAUTION – Like paid subscriptions, be very careful with classes and courses. Most are easily over $1,000 and are sold with promises of acquiring valuable knowledge. Their fantastic sales funnels will suck you in, take your money, excite you during the course, then leave you with a strategy that was profitable five or ten years ago, but is no longer relevant today. That, or you simply do not yet have the expertise required to be successful and trade the strategy properly.

Now, imagine that you decide to buy the stocks of those five companies with your $1,000. To do this you will incur $50 in trading costs, which is equivalent to 5% of your $1,000. If you were to fully invest the $1,000, your account would be reduced to $950 after trading costs. This represents a 5% loss, before your investments even have a chance to earn a cent!

You probably know that investing in stocks is a way to get rich but very few new investors actually realize how you make money from your shares of stock. Now, you don't have to wonder any longer. Let's show you the two ways you can profit from owning and investing in stocks, and some of the factors that determine how fast a company grows. Find out how to make money from owning stocks ...

“I know stocks can be a great investment, but I’d like someone to manage the process for me.” You may be a good candidate for a robo-advisor, a service that offers low-cost investment management. Virtually all of the major brokerage firms offer these services, which invest your money for you based on your specific goals. See our top picks for robo-advisors.

While E*TRADE’s baseline fees are a little high ($6.95 for stocks/ETFs, $6.95 plus 75 cents per contract for options) compared to Ally Invest, Charles Schwab, and Fidelity, E*TRADE does offer volume discounts. If you make more than 30 stock/ETFs trades per quarter, the fee drops to a very competitive $4.95, and if you trade more than 30 options per quarter, the contract fee goes down to 50 cents. That makes E*TRADE a good fit for active traders who keep a close eye on the market.

How can I double my money?


Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.

One drawback of Robinhood’s simplicity is that as of 2019, you can only trade stocks, ETFs, and options on the platform — not bonds, mutual funds, or futures, and you can’t short-sell. But Robinhood is our “Best for Beginners” pick, and most first-time investors will probably want to stick to the basics. If you’re interested in bonds and mutual funds, Ally Invest has the best rates of our top picks. If you want to try futures trading, E*TRADE and Charles Schwab are your best bets.

How can I get rich quick?


While E*TRADE’s baseline fees are a little high ($6.95 for stocks/ETFs, $6.95 plus 75 cents per contract for options) compared to Ally Invest, Charles Schwab, and Fidelity, E*TRADE does offer volume discounts. If you make more than 30 stock/ETFs trades per quarter, the fee drops to a very competitive $4.95, and if you trade more than 30 options per quarter, the contract fee goes down to 50 cents. That makes E*TRADE a good fit for active traders who keep a close eye on the market.

Worth noting: A 401(k) is a type of investment account, and if you’re participating in one, you may already be investing in stocks, likely through mutual funds. However, a 401(k) won’t offer you access to individual stocks, and your choice in mutual funds will likely be quite limited. Employer matching dollars make it worth contributing despite a limited investment selection, but once you’re contributing enough to earn that match, you can consider investing through other accounts.

Let’s take Apple (AAPL) for example, which is listed on the NASDAQ stock exchange. Apple currently has 4.6 billion shares outstanding, of which 4.35 billion are available to be traded (also known as the “float”). Using today’s closing price of $201.75 (July 11th, 2019), Apple has a market cap of $937.44 billion. That’s a big company! (By the way, market cap is a simple way to gauge the value of a company. If you bought every available share of stock, the market cap is how much it would cost you to buy the entire company.)

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.


If you want to trade “futures” (agreements to buy or sell assets in the future), Ally Invest isn’t an option. That’s not unusual for an online stock broker — neither Robinhood, Vanguard, nor Fidelity offer futures trading — but you can do it with some of our other top picks, including E*TRADE, Charles Schwab, Interactive Brokers, and TD Ameritrade.

Sun Hung Kai Properties managed to sell seven units out of 145 flats on offer at its Park Yoho Napoli project in Kam Tin, a mere 3 kilometres from Yuen Long, where police fired tear gas to disperse an estimated 100,000 protestors marching through the suburb Great Eagle sold 170 of 238 of its Ontolo apartments in Pak Shek Kok, reported sales agents, who expect the project to sell out by the day's end

If you want to trade “futures” (agreements to buy or sell assets in the future), Ally Invest isn’t an option. That’s not unusual for an online stock broker — neither Robinhood, Vanguard, nor Fidelity offer futures trading — but you can do it with some of our other top picks, including E*TRADE, Charles Schwab, Interactive Brokers, and TD Ameritrade.

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.

Each publicly traded company lists their shares on a stock exchange. The two largest exchanges in the world are the New York Stock Exchange (NYSE) and the NASDAQ; both are based in the United States (Wikipedia). Attempting to grasp just how large the NYSE and NASDAQ both are is certainly not easy. The NYSE has a market cap of nearly $31 trillion and the NASDAQ’s is nearly $11 trillion. And yes, that is not a typo, I said, “trillion”.

The stock market is now more than 10 years into a Federal Reserve-fueled bull run, despite the return of volatility in late 2018 as tariffs and rising interest rates took center stage. While the trade war still concerns Wall Street, the specter of rising rates quickly disappeared. The best stocks to buy for 2019 are strong companies with solid underlying fundamentals, poised to prosper regardless of what the future brings. A diverse array of growth and value stocks, ranging from small- to mega-cap names, all 10 of the best stocks to buy for 2019 look like attractive opportunities for the long-term investor. Here’s a rundown of the top selections.

“I know stocks can be a great investment, but I’d like someone to manage the process for me.” You may be a good candidate for a robo-advisor, a service that offers low-cost investment management. Virtually all of the major brokerage firms offer these services, which invest your money for you based on your specific goals. See our top picks for robo-advisors.

Jesse Livermore, respected as one of the greatest investors of all time, has been featured in many investment books. The most iconic was Reminiscences of a Stock Operator by Edwin Lefevre in 1923. During the course of his life he made and lost millions, going broke several times before committing suicide in 1940. These are his seven greatest trading lessons:

Discount brokers used to be the exception, but now they're the norm. Discount online brokers give you tools to select and place your own transactions, and many of them also offer a set-it-and-forget-it robo-advisory service too. As the space of financial services has progressed in the 21st century, online brokers have added more features including educational materials on their sites and 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.

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:

We found Robinhood’s trading interface — both via its mobile app and its website — the most user-friendly of all candidates, making it a perfect option for the first-time trader. The design is minimalist, interactive, and easy to navigate. “Robinhood is a good fit for new investors because it offers a slick, modern app that allows you to trade efficiently,” says James Royal, a stock analyst and investing and wealth management reporter at Bankrate. “And of course, it's free, allowing you to invest money that would have otherwise gone into a broker's pocket.”

*Offer valid for one new Individual, Joint or IRA TD Ameritrade account opened by 9/30/2019 and funded within 60 calendar days of account opening with $3,000 or more. To receive $100 bonus, account must be funded with $25,000-$99,999. To receive $300 bonus, account must be funded with $100,000-$249,999. To receive $600 bonus, account must be funded with $250,000 or more. Offer is not valid on tax-exempt trusts, 401k accounts, Keogh plans, profit sharing plan, or money purchase plan. Offer is not transferable and not valid with internal transfers, TD Ameritrade Institutional accounts, accounts managed by TD Ameritrade Investment Management, LLC, current TD Ameritrade accounts or with other offers. Accounts funded with $3,000 or more are eligible for up to 500 commission-free trade internet equity, ETF, or option trades executed within 60 calendar days of account funding. All other trade types are excluded from this offer. Contract, exercise, and assignment fees still apply. No credit will be given for unexecuted trades. Limit one offer per client. Account value of the qualifying account must remain equal to, or greater than, the value after the net deposit was made (minus any losses due to trading or market volatility or margin debit balances) for 12 months, or TD Ameritrade may charge the account for the cost of the offer at its sole discretion. TD Ameritrade reserves the right to restrict or revoke this offer at any time. This is not an offer or solicitation in any jurisdiction where we are not authorized to do business. Please allow 3-5 business days for any cash deposits to post to account. Taxes related to TD Ameritrade offers are your responsibility. All promotional items and cash received during the calendar year will be included on your consolidated Form 1099. Please consult a legal or tax advisor for the most recent changes to the U.S. tax code and for rollover eligibility rules. (Offer Code: 220)

An online brokerage account likely offers your quickest and least expensive path to buying stocks, funds and a variety of other investments. With a broker, you can open an individual retirement account, also known as an IRA — here are our top picks for IRA accounts — or you can open a taxable brokerage account if you’re already saving adequately for retirement elsewhere.

*Offer valid for one new Individual, Joint or IRA TD Ameritrade account opened by 9/30/2019 and funded within 60 calendar days of account opening with $3,000 or more. To receive $100 bonus, account must be funded with $25,000-$99,999. To receive $300 bonus, account must be funded with $100,000-$249,999. To receive $600 bonus, account must be funded with $250,000 or more. Offer is not valid on tax-exempt trusts, 401k accounts, Keogh plans, profit sharing plan, or money purchase plan. Offer is not transferable and not valid with internal transfers, TD Ameritrade Institutional accounts, accounts managed by TD Ameritrade Investment Management, LLC, current TD Ameritrade accounts or with other offers. Accounts funded with $3,000 or more are eligible for up to 500 commission-free trade internet equity, ETF, or option trades executed within 60 calendar days of account funding. All other trade types are excluded from this offer. Contract, exercise, and assignment fees still apply. No credit will be given for unexecuted trades. Limit one offer per client. Account value of the qualifying account must remain equal to, or greater than, the value after the net deposit was made (minus any losses due to trading or market volatility or margin debit balances) for 12 months, or TD Ameritrade may charge the account for the cost of the offer at its sole discretion. TD Ameritrade reserves the right to restrict or revoke this offer at any time. This is not an offer or solicitation in any jurisdiction where we are not authorized to do business. Please allow 3-5 business days for any cash deposits to post to account. Taxes related to TD Ameritrade offers are your responsibility. All promotional items and cash received during the calendar year will be included on your consolidated Form 1099. Please consult a legal or tax advisor for the most recent changes to the U.S. tax code and for rollover eligibility rules. (Offer Code: 220)

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.

This leaves the $1,000-investor with the option of a discount broker. Discount brokers have considerably lower fees, but don't expect much in the way of hand-holding. Fees are low because you are in charge of all investment decisions – you can't call up and ask for investment advice. With $1,000, you are right on the cusp in terms of the minimum deposit. There will be some discount brokers that will take you and others that won't. You'll have to shop around.

Research is provided for informational purposes only, does not constitute advice or guidance, nor is it an endorsement or recommendation for any particular security or trading strategy. Research is provided by independent companies not affiliated with Fidelity. Please determine which security, product, or service is right for you based on your investment objectives, risk tolerance, and financial situation. Be sure to review your decisions periodically to make sure they are still consistent with your goals.

How do I choose a stock to invest in?


So you have a $1,000 set aside, and you're ready to enter the world of stock investing. But before you jump head first into the world of stocks and bonds, there are a few things you need to consider. One of the biggest considerations for investors with a minimal amount of funds is not only what to invest in but also how to go about investing. Not long into your investment journey you may find yourself bombarded with minimum deposit restrictions, commissions and the need for diversification, among a myriad of other considerations. In this article, we'll walk you through getting started as an investor and show you how to maximize your returns by minimizing your costs.

Should you sell these five stocks, you would once again incur the costs of the trades, which would be another $50. To make the round trip (buying and selling) on these five stocks would cost you $100, or 10% of your initial deposit amount of $1,000. If your investments do not earn enough to cover this, you have lost money by just entering and exiting positions.


If you want to trade “futures” (agreements to buy or sell assets in the future), Ally Invest isn’t an option. That’s not unusual for an online stock broker — neither Robinhood, Vanguard, nor Fidelity offer futures trading — but you can do it with some of our other top picks, including E*TRADE, Charles Schwab, Interactive Brokers, and TD Ameritrade.

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.

First things first, let’s quickly define stock trading. Stock trading is buying and selling shares of publicly traded companies. Popular stocks most Americans know include Apple (AAPL), Facebook (FB), Disney (DIS), Microsoft (MSFT), Amazon (AMZN), Google (GOOGL), Netflix (NFLX), and more recently listed companies such as Uber (UBER) and Pinterest (PINS).

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.

This leaves the $1,000-investor with the option of a discount broker. Discount brokers have considerably lower fees, but don't expect much in the way of hand-holding. Fees are low because you are in charge of all investment decisions – you can't call up and ask for investment advice. With $1,000, you are right on the cusp in terms of the minimum deposit. There will be some discount brokers that will take you and others that won't. You'll have to shop around.

First things first, let’s quickly define stock trading. Stock trading is buying and selling shares of publicly traded companies. Popular stocks most Americans know include Apple (AAPL), Facebook (FB), Disney (DIS), Microsoft (MSFT), Amazon (AMZN), Google (GOOGL), Netflix (NFLX), and more recently listed companies such as Uber (UBER) and Pinterest (PINS).

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.

Fusion Media or anyone involved with Fusion Media will not accept any liability for loss or damage as a result of reliance on the information including data, quotes, charts and buy/sell signals contained within this website. Please be fully informed regarding the risks and costs associated with trading the financial markets, it is one of the riskiest investment forms possible.

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.

In terms of the beginning investor, the mutual fund fees are actually an advantage relative to the commissions on stocks. The reason for this is that the fees are the same regardless of the amount you invest. So, as long as you have the minimum requirement to open an account, you can invest as little as $50 or $100 per month in a mutual fund. The term for this is called dollar cost averaging (DCA), and it can be a great way to start investing.

An online brokerage account likely offers your quickest and least expensive path to buying stocks, funds and a variety of other investments. With a broker, you can open an individual retirement account, also known as an IRA — here are our top picks for IRA accounts — or you can open a taxable brokerage account if you’re already saving adequately for retirement elsewhere.

The main difference between ETFs and mutual funds is in how they trade. ETFs trade like stocks, which means you can buy and sell them throughout the day and they fluctuate in price depending on supply and demand. Contrarily, mutual funds are priced each day after the market closes, so everyone pays the same price. Also, mutual funds typically require a higher minimum investment than ETFs.

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.