Choosing Your Funds
Out of all those funds your plan may offer, how can you know which ones to choose in order to get the best return on your 401(k) investment?
Well, if you are clairvoyant, the answer is simple. All you have to do is put all your money in the fund that you know is going to soar in value.
However, if you are like the rest of us, you have no idea which fund is going to rise more than the others. In this case, the best strategy is to use a carefully calculated combination of funds.
What is asset allocation, anyway?
The method used to calculate such a combination is called asset allocation. A good asset allocation is the Holy Grail of investing, but according to one recent survey most 401(k) participants don't even have an asset allocation strategy.
Asset allocation means dividing up (allocating) your investments (assets) in such a way that they work together to give you the smoothest ride toward your investment goal. The idea is to choose funds that are expected to do well in the long run, but that do not move up and down in synch with each other.
Imagine, for example, that you are driving up a mountain. One road leads you to your destination on a gradual slope. Another is a roller-coaster road that takes you up steep hills - some even higher than your destination - and down into deep valleys, eventually bringing you to your destination with one heck of a stomachache. Which one would you choose?
By spreading your 401(k) over several funds, you will not achieve the highest returns possible in your 401(k) each quarter. That would require putting your entire investment in the single fund that was going to do the best - and unless you are the clairvoyant that we were talking about earlier, you can't possibly know which fund that will be.
Asset allocation strategies
Asset allocation is based on modern portfolio theory, which says that the critical first step to developing a suitable investment account is deciding which types of assets you want to buy, not which individual stocks and bonds you like. Investing in many different asset classes makes more sense than worrying about whether a particular security is ' safe enough' to put your money in.
Here's some help with developing the best asset allocation strategy for you. Of course, these are general guidelines that don't take into account the details of your particular situation, and they should be viewed as such. They are educated guesses that are based on historical data. When it comes to trying to predict the future, economists agree with the immortal patriot Patrick Henry, who said:
' I know of no way of judging of the future but by the past.'
Below are pie charts that illustrate suggested asset allocations for different age groups based on the historical returns of and correlation between asset classes. (Correlation means how similarly the classes behave - for a more detailed explanation please see Wall Street 101.)
All allocations assume a retirement age of 65:
In your 60s?
In your 50s?
In your 40s?
Classify the funds in your plan
At this point you're probably thinking, that's great, but I still don't know which funds in my plan to invest in.' Hang on to your portfolios, investors, because that's what we're going to look at now.



Investing into many different asset classes makes more sense than worrying about whether a particular security is in itself "safe enough." Even the riskiest securities, like junk bonds and derivatives, can add value to a low-risk portfolio if they are used in the proper proportion. The impact of a security on the total portfolio is the paramount concern.
The risk, or fluctuation in return, of your total investment account can be derived mathematically. It depends on two factors -- the risk of each individual investment and the correlation between the investments. 

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