Another very ugly lesson on the benefits of diversification

I don’t usually care about what happens to an individual stock, but there is an important lesson to be gained from the short story of this one…

In case you missed it, over the weekend Bear Stearns was sold to JPMorgan Chase (using money loaned to it by the Federal Reserve). A very short stock price history:

  • Within the last year, Bear Stearns shares were valued at just shy of $160 per share.
  • Within the past week, it’s share price, which had fallen sharply, was still hovering at about $60 per share.
  • Over the weekend, Bear Stearns was sold in an apparent “fire” sale to JPMorgan for $2 per share.

GULP.

About $19 BILLION in market value is gone. Vanished. The company was sold for the “bargain basement” price of $236 Million dollars. The answer to why this happened is the subject of another post. My immediate concern is for the company’s employees.

Today there are about reportedly about 14,000 Bear Stearns employees that have seen vast sums of their retirement and pension savings completely wiped out. Apparently, the lessons of Enron and Worldcom have not been learned because Bear Stearns employees figured it couldn’t happen to them. But very unfortunately for them, the risk has “shown up”.

When you hold a single security you are taking on what the financial academics call “specific risk” which includes within its very definition, the most extreme form of “business” risk, the risk of complete failure.

Author Charles Ellis, in his book “Winning the Loser’s Game” (the link to which can be found in the Reading Room) discusses this concept at great length. He explains that specific risk and “extra market risk”, which is the risk taken by holding related stock groups, cannot be diversified away, and therefore should be avoided. Investors are simply not rewarded or compensated for accepting specific and extra market risks. Because these kind of risks can be eliminated, they should be. Mr. Ellis calculates that about 75% of the risk associated with holding a single stock can be attributed to specific and extra market risks.

It’s important to understand that even if specific and extra market risks are eliminated from a portfolio by means of diversification, what remains is market risk, or in academic parlance, systematic risk, which can be managed. Market risk represents the overall risk of holding stocks and is the only type of risk that an investor has been rewarded for taking historically.

The best financial tool devised for the average investor to manage market risk is an index fund or ETF that tracks the Wilshire 5000 index, which is a composite of the entire US stock market. It shouldn’t be your only holding, but it is considered by most financial authors to be one of the most appropriate core investments for long term investing.

Here’s one silver lining: Today (March 17, 2008) Bear Stearns stock closed at $4.81, so JPMorgan has already seen a 240.5% return on its investment (using borrowed money, no less!). So, if anyone doubts the ability of Wall Street to make a buck, look no further.

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UPDATE: March 20, 2008 Stock Price: $5.96 - JPMorgan’s return on original $2 (borrowed $$$) investment: 298%; Don’tcha wish all your investment returns could be like this?

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