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Diversification is still the only way to invest, said Cramer, admitting he occasionally gets it wrong. Sometimes his stock picks just simply don't work out. That's investing. Any investor putting together an investing portfolio needs to be prepared, said Cramer, because sooner or later something won't work out.
But how should investors prepare for the next market catastrophe or stock pick gone bad? Not by being bearish but by being smart, Cramer said. Being a bear means shorting stocks, hoping they go down. That's a valid investing strategy but it limits one's profit potential since the lowest a stock can go is zero.
However, Cramer said, compare that to bullish investing, betting that stocks go higher. Their potential profits are limitless, he said. Investors who invested in Action Alerts PLUS holding Apple (AAPL) in 2009, for example, realized a 580% gain over the next three years.
Beyond having a positive outlook, Cramer said the most important rule to managing your money is diversification. That means not having all your eggs in one sector basket. A portfolio with five stocks must have only one technology company, one health care name, one energy company, one industrial, etc. Two or three of a kind is a quick way to get caught off guard, so no more than 20% of a portfolio can be in a single sector.
Being diversified is more than just investing in different sectors, however. Cramer said the new rules of diversification also require owning some gold in your portfolio along with a high-yielding dividend stock, a growth stock, a speculative stock and one that's firmly rooted in a healthy geography.
Check the Dividends
Cramer said the most important category of stocks that must be in a diversified portfolio is a high-yielding dividend stock. He said that every portfolio needs at least one, possibly more, dividend payers.
While dividend stocks might not seem sexy, dividends make money. In fact, nearly 40% of the total gains from the S&P 500 since 1926 have come in the form of dividends. Over the past decade, that percentage is even higher, he said.
Dividends aren't merely safety plays for retirees and cautious investors, said Cramer. They are a smart strategy for making money. He explained that as a stock price falls, its dividend yield increases, which, in turn, makes it more attractive to investors. Stocks that hit a 4% yield represent terrific long-term bargains, he noted, which is why stocks typically stop going down once they hit 4%.
But beyond making money, Cramer said dividends -- and especially dividend raises -- are management's way of telling investors that things are going well at a company. A solid, steady dividend that gets raised regularly is a hallmark of a company that's stable and doing sell.
Not all dividends are created equal, however, cautioned Cramer. He said dividend yields that are not sustainable are red flags. Just look at what happened to Radio Shack (RSH) and supermarket SuperValu (SVU) in early 2012 for a lesson in dividends gone awry. Cramer said a company's earnings per share should be at least twice that of its dividend payout to be considered safe. For companies with high capital needs, like telcos, he said investors can look at the cash flow as another metric to see whether the dividend may be in jeopardy.
Secular Growth Stocks
Next up in Cramer's toolbox of investing tips: secular growth stocks. Stocks like AAP holdings Apple, Google (GOOGL) and Facebook (FB) all fit this category, said Cramer. So do many biotech names including Regeneron (REGN) and Celgene (CELG) .
Growth stocks will hit new high after new high as long as their growth continues. That's because stock prices represent what investors are willing to pay for future earnings, he said. So as a company's earnings grow, so, too, does its share price. Cramer said as a rule, he's willing to pay up to two times a company's growth rate. So for a company growing 20% a year, he's willing to pay up to 40 times their earnings. Growth stocks typically won't trade below one time their growth rate unless something is going wrong.
Cramer told investors to pay close attention to the direction of the earnings estimates anytime they're investing in growth names. "When you're playing with momentum, you're playing with fire," Cramer continued. When earnings have momentum, companies can see their stock double in just a year, but if the earnings begin to slow, they will fall sharply -- as Chipotle Mexican Grill (CMG) saw in July 2012 when shares tumbled 100 points on the mere suggestion that the company may be vulnerable to a weakening U.S. economy.
Every portfolio also needs something to keep you interested, said Cramer, and that means at least one speculative stock. While speculation has become a dirty word on Wall Street, something most financial advisers will tell you to avoid, Cramer said it's important to stay engaged with your stocks and to continue to do your homework. Otherwise, investing will become no more profitable than gambling.
To speculate wisely, Cramer said investors need to use the right rules and maintain their discipline. Speculation can provide investors with enormous gains, he said, but if done incorrectly can yield gut-wrenching losses.
When it comes to speculating, most investors look towards stocks under $10 a share. Cramer said there are two kinds of stocks in this category -- those with broken companies and those with merely broken stocks that have been left for dead by money mangers that aren't allowed to invest in things under $5 a shares. Investors can take great advantage of the latter, said Cramer.
Two great examples of "left for dead" stocks include Sprint (S) , when it traded at just $2 a share, or Rite Aid (RAD) which traded as low as $3 a share. During the height of the great recession both companies were hated by Wall Street. But beneath all of the skepticism they were solid companies, said Cramer, which is why both companies saw their shares rebound nicely.
These deals don't come around often, however. More often than not, stocks under $10 a share are tiny names that you've probably never heard of, Cramer said. These may be fads or companies that are mere shells of their former selves. But that doesn't mean that there aren't diamonds in the rough out there if you know where to look.