Intuitive Surgical (NASDAQ:ISRG) -- Intuitive Surgical is a healthcare company that makes surgical robots and is the clear leader in the space. There are tens of thousands of doctors trained on the company's da Vinci surgical robots and more than 4,400 of the robots installed worldwide. As more surgical applications are found for the technology, these machines become more valuable to the hospitals that own and use them.
How much money should I invest in stocks? If you’re investing through funds — have we mentioned this is our preference? — you can allocate a fairly large portion of your portfolio toward stock funds, especially if you have a long time horizon. A 30-year-old investing for retirement might have 80% of his or her portfolio in stock funds; the rest would be in bond funds. Individual stocks are another story. We’d recommend keeping these to 10% or less of your investment portfolio.
Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts. We also reference original research from other reputable publishers where appropriate. You can learn more about the standards we follow in producing accurate, unbiased content in our editorial policy.
Stock investing is filled with intricate strategies and approaches, yet some of the most successful investors have done little more than stick with the basics. That generally means using funds for the bulk of your portfolio — Warren Buffett has famously said a low-cost S&P 500 index fund is the best investment most Americans can make — and choosing individual stocks only if you believe in the company’s potential for long-term growth.
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.
The content on MoneyCrashers.com is for informational and educational purposes only and should not be construed as professional financial advice. Should you need such advice, consult a licensed financial or tax advisor. References to products, offers, and rates from third party sites often change. While we do our best to keep these updated, numbers stated on this site may differ from actual numbers. We may have financial relationships with some of the companies mentioned on this website. Among other things, we may receive free products, services, and/or monetary compensation in exchange for featured placement of sponsored products or services. We strive to write accurate and genuine reviews and articles, and all views and opinions expressed are solely those of the authors.

While some people do buy winning tickets or a common stock that quadruples or more in a year, it is extremely unlikely, since relying upon luck is an investment strategy that only the foolish or most desperate would choose to follow. In our quest for success, we often overlook the most powerful tools available to us: time and the magic of compounding interest. Investing regularly, avoiding unnecessary financial risk, and letting your money work for you over a period of years and decades is a certain way to amass significant assets.
We want to hear from you and encourage a lively discussion among our users. Please help us keep our site clean and safe by following our posting guidelines, and avoid disclosing personal or sensitive information such as bank account or phone numbers. Any comments posted under NerdWallet's official account are not reviewed or endorsed by representatives of financial institutions affiliated with the reviewed products, unless explicitly stated otherwise.
×