Asset Allocation Basics: How to Invest

Get started building your portfolio with tips on asset allocation and how to decide whether to invest in stocks, funds or bonds.

  • Learn about portfolio diversification, asset allocation models and investment strategies
  • Explore various investment options such as stocks, mutual funds, ETFs and bonds
  • Understand the importance of risk assessment, expense ratios and maintaining a diversified portfolio

If you have been following along with me in this series as a beginning investor, you have your finances in order, you know how much money you have available to invest and you’ve opened a brokerage account—now what? It’s time to start being that investor and build your portfolio.

To have a successful investment portfolio, you must diversify what you hold. This doesn’t mean just owning stocks from various countries or splitting your money evenly between domestic and foreign investments. Its purpose is to strategically build a safety net for your portfolio to survive in all kinds of markets, much like getting your sweaters out of storage to protect yourself against the winter. But you don’t have just one sweater, you have a mock neck for the milder days and a nice fluffy knit for going out in the snow. By diversifying your portfolio, you reduce the risk of one bad investment losing value—or your only sweater unraveling—and tanking your returns.

What Is Asset Allocation?

Asset allocation is simply defined as how investors divide their portfolios between different types of investments. AAII’s Asset Allocation Models are a great place for beginners to start. They cover three general types of investors: aggressive, moderate and conservative. Each model is unique based on its allocation to stocks. Since the stock market is inherently more volatile, this allocation also equates to how much risk you want to take.

  • The aggressive model, a pungent rhubarb pie, calls for a 90% allocation to stocks. This high concentration of stocks is best for young investors or those with a long investing horizon of 20 or more years.
  • The moderate model, an average cherry pie, allocates 60% to stocks. For those with an intermediate-term investing horizon—around 10 to 15 years—this lower percentage invested in stocks means a slightly safer portfolio allocation.
  • The conservative model, a classic apple pie, has only a 40% allocation to stocks. Having a higher concentration of bonds in this model acts as a portfolio safeguard in uncertain markets. It is usually suitable for older investors nearing retirement or those who are retired and don’t want to risk losing too much value in stocks. This model is best used for short-term investing periods of less than 10 years—and particularly five years or less.

AAII’s My Portfolio tool has a diversification analyzer for A+ Investor and Platinum subscribers that will tell you exactly how much you deviate from whichever Asset Allocation Model you choose to follow. The diversification analyzer shows your portfolio’s allocation to domestic stocks, foreign stocks, bonds and cash. Since I am still a beginning investor with a long time horizon, my portfolio is practically all in stocks, with a little slice in cash. I can follow the aggressive model without allocating anything to bonds, since I’m choosing to only invest in things I can understand.

As a beginner, it’s crucial to understand what you’re investing in before you make a decision. Your hard-earned money is going into something that should make you more money in the long run, but only if you know its purpose and structure.

How to Invest in Stocks

Stocks may be intimidating to the beginner, but they happen to be a great place to start for those who don’t have much money to spare. A stock is a piece of a publicly traded company that you can purchase on an exchange and add to your portfolio. As the company increases in value over time, so should your investment in the company’s stock.

You could start investing in stocks with as little as $5, especially with the growing availability of fractional share purchases. Fractional shares allow you to buy a portion of a share of stock based on the dollar amount rather than a whole share. This works well for investors who are regularly contributing small amounts to their savings but be sure to check which brokers allow fractional shares before opening your brokerage account. Note that fractional shares are not available for every stock, even if your broker offers them.

For those with more money to burn, you can start with a few hundred or a couple thousand dollars. You might choose a specific stock investing strategy to follow, which would narrow your investment universe so you can more easily choose stocks. For example, you can invest in value stocks (those undervalued by the market), growth stocks (those with significant price growth potential), dividend stocks (those that pay out a portion of earnings to investors on a quarterly basis) or stocks that grade well on environmental, social and governance (ESG) parameters.

You can also invest in stocks based on their size. Small-, mid- and large-cap stocks are named for the size of the company’s total equity value, called market capitalization. Small-cap stocks can be a good entry point for beginners since their share prices are usually lower.

A good way to ensure you are diversifying your portfolio is to hold at least 20 individual stocks. As we discussed with the sweaters, your stocks should not be overly concentrated in one industry or sector. This way, your portfolio can weather any storm.

How to Invest in Mutual Funds & ETFs

Also suitable for the beginner are mutual funds and exchange-traded funds (ETFs). Funds are baskets of securities that investors can add to their portfolios for easy diversification. Funds primarily invest in stocks and bonds, so you could start your portfolio with just funds. Though mutual funds and ETFs both fall into the fund category, they have significant differences.

A mutual fund is a pooled collection of assets funded directly by investment dollars from many investors. Unlike stocks, mutual funds are traded once per day when the market closes at 4:00 p.m. Eastern Time. Many mutual funds require a minimum amount to invest, ranging from $500 to $5,000, so some mutual funds will be off-limits to beginners.

Mutual funds can also have higher taxes and fees. A mutual fund that is actively managed has a fund manager who makes buy and sell decisions. More transactions like these can lead to higher transaction fees and capital gains, meaning more taxes. Index mutual funds are passive and follow an index representing a specific area of the market. This means no extra costs for analyzing individual companies. Mutual funds can also have front- or back-end loads. A load is a sales charge or commission that is paid to the broker or adviser who sells you the mutual fund.

ETFs are a happy medium between stocks and mutual funds: They pool investors’ money like mutual funds but trade on exchanges like stocks. There is no minimum amount you must invest in an ETF and some brokers allow you to buy fractional shares—as you can with a mutual fund. ETFs can be actively managed, but the majority are passive index ETFs. ETFs also have lower tax-cost ratios because they issue and redeem shares with an intermediary known as an authorized participant. This gets a bit complicated, but it results in fewer capital gains distributions to pass along to shareholders.

To help you determine a good fund to invest in, you can compare their expense ratios. An expense ratio represents the cost of owning a mutual fund or ETF in your portfolio. A good cutoff for expense ratios is 0.75% for an actively managed fund. Anything above 1.50% is considered a very high expense ratio and will eat a large slice of your returns over the long run.

How to Invest in Bonds

Though I don’t personally invest in bonds, I will do my best to explain how you can! A bond represents the debt of a company or government entity. A bond is considered a loan that you make to the issuer that will be paid back whenever it reaches its date of maturity.

Bonds with good credit ratings are low-risk investments that are held in your portfolio for anywhere between one and 30 years depending on the issuer. I think of bonds as the opposite of stocks in this regard: They are safe and will not appreciate in value nearly as much as stocks do over time. You will see less fluctuation in price and receive a lower, more fixed reward. However, if you are a moderate or conservative investor, you should include bonds in your portfolio. They will maintain the core of your portfolio’s value when the stock market is down. Since bonds are considered debt, companies are obligated to pay back bondholders before stockholders receive a penny.

Bonds increase in value based on yields or interest rates. These yields are likely better than what you can get from other savings vehicles. However, bond yields and inflation move inversely to each other, so when inflation is rising, bond yields will be lower. You can buy government bonds at TreasuryDirect.gov, though I have heard its interface is somewhat difficult to navigate.

Conclusion

Having a diversified portfolio of assets is key to long-term investing success. You can monitor your portfolio’s allocation and make changes based on what you want your portfolio to do for you. The last thing you want is one investment overtaking your portfolio with its high gains, or with its huge losses. You can check on a quarterly basis or less frequently if you find that not much is changing until six months or one year down the line. To get your allocation back to where you want it, you can sell all or part of your position in a security. If you want exposure to different industries, you can start by researching how those industries are doing and who the leaders are. Strategic asset allocation means you can have your pie and, eventually, eat it too!

Discussion

JOHN L from NJ posted over 2 years ago:

Nothing in life is free. Those who wish to reduce volatility by investing in lower return but less volatile investments like bonds and cash will have lower returns over the long term. One of the last messages from James Cloonan was that the cost of reducing volatility was very high and possibly unnecessary for young investors. Please note that the author of this article does not personally invest in bonds!!


ROBERT A from NC posted over 2 years ago:

My humble (and experienced) opinion for beginning investors: Yes, a REASONABLE level of diversification is a good idea, because individual companies do sometimes go belly-up, but you should NOT use diversification to try to control ordinary market volatility. Volatility IS NOT RISK!!! That is a canard! AAII's asset allocation models should be ignored. If you're a novice, the best thing you could do for your long-term financial well-being is to invest in a low-expense-ratio (less than 0.1%) domestic equity index ETF unless and until you are knowledgeable enough to invest in individual stocks. A single ETF of this sort can make you quite wealthy if you save and invest enough in it over a lifetime. I would choose one with a good historical 10-year-return, ignore volatility, and pump as much as you can into it throughout your life. A single ETF of this sort should provide ample diversification against PERMANENT loss--which is the REAL risk in investing. Such an investment is far SAFER than investing anything in bonds (which are GUARANTEED to provide attenuated returns over the long haul). The only real risk of investing in such an ETF is that of a huge asteroid striking the earth, an all-out nuclear war, or a similar event causing a total collapse of our economy, in which case it won't matter what your asset allocation is. An ETF of this category will experience volatility, and you should steel yourself against it and stay the course. There simply is no way to avoid volatility without reducing the returns you can achieve through buy-and-hold discipline with equities. My portfolio has been down more than 50% twice in my life, but hanging on and staying the course was well worth the temporary pain.


ROBERT A from NC posted over 2 years ago:

Whatever you do, BEWARE of conventional, textbook "wisdom," which often encourages short-term thinking. Unfortunately, this article is chock full of it. Stay away from "actively managed" funds. International diversification, although favored by so-called "professionals," is not likely to enhance your long-term returns. The good ol' U.S. is still the best game in town for long-term investing. Foreign stocks sometimes outperform domestic stocks, but over the long-haul, domestic stocks have trounced foreign issues. Besides, U.S. companies do enough business overseas that many can be considered "international" anyway. (I will confess to owning a few foreign stocks, but they're less than 3% of my portfolio. Most "domestic" equity ETFs will hold small percentages of foreign stocks as well.)


DIETMAR K from AUT posted over 2 years ago:

After being invested for quite some time in individual stocks, my advice would be to put 90% of your investment money into a low cost index fund of the S&P 500 and 10% keep in cash or very short term high grade bonds. It is boring, but the results are better.


THOMAS S from OR posted over 2 years ago:

Any new investor reading this article is demonstrating the first goal of being a successful investor. That is to obtain knowledge and understanding, and AAII is a wonderful place to obtain that. That sounds like a plug, but, honestly, my only connection to AAII is that I’ve been a member for 15 years and have read every copy of the Journal over that time. An important aspect of the knowledge I’ve obtained is historical prospective, and with that I have faith in the long-term trends of the market. I’m in retirement and still an aggressive investor, because when the market retreats and my portfolio shrinks I don’t stress about it, or lose sleep. I know, historically, every time this has happened, it has come back stronger. I just weather the storm and anticipate the sunny days ahead, without ever seriously considering some panicky sale of my assets. What a relief that provides. Perhaps, I’m fortunate in that I find reading books about investing and tracking the market and my portfolio fun and interesting, not boring as so many friends and colleagues have found it. To them, I often point out that in college we took classes that were required, even if uninteresting, and during our working years, the jobs we did to earn the money on which our lifestyle depended was to some degree, more or less, boring as well. For a young investor, putting the time in now to develop that knowledge, boring or not, greatly increases your chance of having the lifestyle you desire in retirement. Hopefully, you find it fun, but if not, it's no different than what you’ve done in the past, or are doing now, so just do it.


PAUL S from OR posted over 2 years ago:

"However, bond yields and inflation move inversely to each other, so when inflation is rising, bond yields will be lower. " I'm not sure bond yields and inflation move inversely; that implies as inflation goes up, bond prices go up. Should this rather read: "... bond prices and inflation move inversely to each other ..."?


PAUL M from NY posted over 2 years ago:

Investing successfully is at times boring. I used ETF's and I kept investing a set amount each month. It has served me well over the years. When the market went down I saw it as an opportunity to acquire more shares for less money. As for "actively managed" accounts I would steer clear. After making some poor choices early on, and losing money thereby, I opted for the boring. I created an account that is my gambling account. I have had some success but it is more for fun and not tied to my retirement. I of course use DRIP. Disciplined investing is boring but it is the way to go in my opinion.


KEVIN V from NC posted over 2 years ago:

Better to be a tortoise and invest regularly and steadily. Don't look at your balances too often when starting out. And although chasing interesting stocks can be fun, overall I sleep better with my broad based index mutual funds and ETFs. Read Cloonan's Level 3 investing - it is simple and serves me well.


MICHAEL B from WI posted over 2 years ago:

Interesting article. Comments from Robert A from NC were spot on. As an octo I have most of my IRAs in stocks. About 85%. I believe that if you are conservative you should have about 5 years worth of withdrawals out of stocks. If you are not afraid, 3 years would suffice. The potential withdrawals should be in MM or short term bond funds. An old chart from Fidelity showed that going back to 1926 small caps outperformed large caps, and mid-caps outperformed small caps, and that value outperformed growth. Suggests that mid cap value funds (or etfs) would be a good choice.


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