An important tenet of portfolio construction is diversifying between stocks and bonds. While poking around on Morningstar, I stumbled across a quick real-world example of how this works.
Let’s say you had $10,000 back on January 1st, 1993. Now, let’s see how that money would have grown over time until today (August 9, 2013) depending on what you invested it in. That’s means holding over a 20-year period – that’s 20 years of bubbles, crashes, euphoria, fear, and a constant flow of bold predictions and catchy newspaper headlines.
1. Vanguard Total Stock Market Index Fund, Investor Shares (VTSMX).
Let’s say you invested in this huge, popular index fund that passively tracks the entire US stock market. (See What’s Inside the Vanguard Total Stock Market Index Fund?) From afar, you may be happy with this chart. But having lived through it, I can say that it was quite a wild ride. People tend to remember the highest value of their portfolio. Your money would have grown to $37,000, only to fall all the way back to $23,000 in the Tech Bubble Crash (a 38% drop). Later, your $46,000 would have dropped 50% all the way to $23,000 during the Housing Bubble Crash. So between 2003 and 2009, your money would have gone nowhere even as inflation rose. Many people went to cash. But if you stuck it out, today you’d be sitting on a balance of $58,621.
2. Vanguard Total Bond Market Index Fund, Investor Shares (VBMFX)
Now, what if you invested in this fund that tracks the overall US bond market?