30 seconds to know

Diversification minimizes your portfolio risk

Diversification is the key to minimizing risk
VIDEO0:4600:46
Diversification is the key to minimizing risk
Explaining a black swan event
VIDEO0:4500:45
Explaining a black swan event
Why millennials should care about retirement
VIDEO0:4400:44
Why millennials should care about retirement
What is 'Phishing'?
VIDEO0:4400:44
What is 'Phishing'?
Pricing luxury real estate is an art
VIDEO0:4400:44
Pricing luxury real estate is an art
Who (Walter Isaacson thinks) invented the computer
VIDEO0:4200:42
Who (Walter Isaacson thinks) invented the computer
Is becoming a franchisee in your future?
VIDEO0:4300:43
Is becoming a franchisee in your future?
Keeping your social media profiles private
VIDEO0:4400:44
Keeping your social media profiles private
Explaining the Herbalife 'controversy'
VIDEO0:5600:56
Explaining the Herbalife 'controversy'
Why are craft beers becoming pricey?
VIDEO0:4200:42
Why are craft beers becoming pricey?
Why are NYC taxis regulated?
VIDEO0:4400:44
Why are NYC taxis regulated?
Why is pork so pricey?
VIDEO0:4600:46
Why is pork so pricey?
What  you need to know about Roth IRAs
VIDEO0:4200:42
What you need to know about Roth IRAs
Why is NYC real estate so expensive?
VIDEO0:4400:44
Why is NYC real estate so expensive?
What is an IPO?
VIDEO0:4700:47
What is an IPO?
What is an index fund?
VIDEO0:4400:44
What is an index fund?
What is sell in May and go away?
VIDEO0:4400:44
What is sell in May and go away?
Buy the rumor, sell the news
VIDEO0:4100:41
Buy the rumor, sell the news

When financial advisors speak of diversification in your investment portfolio, what are they talking about? Ever hear the expression "don't put all your eggs in one basket?" That basically sums it up.

If an investor puts all his or her money into one type of asset—say, stocks—any negative change in the fortunes of that type of asset could be devastating.

So you want to diversify. That doesn't mean, for example, buying stock in 20 different technology companies. It does mean, rather, spreading out risk by having not only those tech firm stocks in your portfolio but also large cap stocks, small cap stocks, bonds, real estate and cash. If one of those asset classes isn't doing well, the others will help cushion any blow. What's more, if all your assets are doing well, that probably means you need more portfolio diversification.

Certified financial planner Mark Cortazzo, senior partner at Macro Consulting Group, explains.

More 30 Seconds To Know:

What is phishing?
Living room before renovation
Pricing luxury real estate is an art and science
Who (Walter Isaacson thinks) invented the computer

Choose CNBC as your preferred source on Google and never miss a moment from the most trusted name in business news.