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Portfolio diversification: Positive or negative?

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Negative
17% 54 votes Total: 320 votes
Positive
83% 266 votes

Negative

by T.J. Wolfe

Created on: April 14, 2009   Last Updated: April 15, 2009

Any investing theory was created in some type of market and pertains to the market that created it. An investment concept is rarely applicable to different markets. Diversification was a concept created during an extended period of rising markets. Diversification capitalized on the strengths of long term growth and stable markets. Long term growth and stable markets supported investing broadly in an index to reduce risk. The index was going up. The investor was guaranteed to match the index.

There is a difference. Today, the stock market is falling. If you follow any type of wave theory, the market has been falling for the last 8 years. It is inadvisable to use diversification in a falling or contracting stock market with high volatility. In fact, diversification would increase risk.

Diversification was a brilliant way of ensuring gains in a rising, stable market. Diversification enables the investor to match a benchmark index like the S&P 500 index and requires little stock knowledge. The investor buys a broad base of equities in the index. The broad base ensures returns similar to the index.

In the last six months most indices have posted losses of more than 50%. The investor who uses diversification is trying to lose 50% or more of their money. Most investors want to gain money in their investments.

The concept of investing broadly presents more problems. In order to match an index, the investor must invest broadly into the index. Investing broadly reduces the need to research and pick stocks. The number of stocks purchased would greatly exceed 20-30 stocks. Most investors have enough money to invest in three to ten stocks. They do not have the ability to diversify into an index.

When an investor can not diversify into an index, they need to know a lot about the index stocks. They also need to be able to compare stocks. Investors make sound stock picks through knowledge. The average investor does not have time to research and compare all the stocks in an index. This makes them an uninformed investor.

The stock market loves the uninformed. Every day, traders take money off the table from uninformed investors. An investor who believes they are executing a diversification strategy when they don't have enough money is a prime candidate to lose money to experienced traders.

In a falling market, the risk of losing money through diversification is guaranteed. The investor is guaranteed to match the index. Since the index is falling, so is your portfolio.

Diversification was created during a period of stable markets. The investor could invest for years and have few concerns. Today, the stock market is experiencing meteoric rises and falls. These rises and falls are coming faster and are more violent. There isn't any stability.

An example would be the year 2000 when the S&P 500 index topped 1500. A little over two years later, the index had tumbled to 827. It took decades to get to the first top. Five years later, the S&P 500 index had risen to 1567. A year and a half later, in 2009, the S&P 500 had plunged to 683. It took less than a decade to see another meteoric rise and fall.

Within these meteoric rises and falls, the action of individual stocks has become more volatile. Stocks that had been advancing for several months can show a sudden turn around and make a rapid descent to greater lows. Industries which were considered winning industries can become losers overnight.

A key strength of diversification is long-term investing. Holding a stock for years with today's volatility can almost ensure big loses. The large fortune 500 companies had been bell weathers of stability. Yet, the large companies are showing the greatest instability.

Another strength of diversification was that it needed little background knowledge.

Market volatility encourages the need for information. Many investors using diversification are trapped in the markets when the market starts to fall. In addition, they have too many stocks. They don't have a back-up plan because diversification didn't require knowledge in the markets. The volatility encourages uninformed investors to panic sell and buy. Panic sells and buys have an interesting way of creating exponential losses during a rapid descent.

Two financial instruments that have increased market volatility are: the expanded use of derivatives and the expansion of money supply.

Derivatives are a very complex subject. Yet, when you pull apart all the jargon, it comes down to something similar to a ponzi scheme where someone is left holding the bag.

Bernie Madoff was easy to understand because we could understand losing all our investment due to false reporting. Well, derivatives are not reported on the financial statements and are a potential liability. Derivatives are usually a single footnote in a 200 page prospectus. Good-luck finding it.

Just like Bernie Madoff, when the markets start turning against companies holding high risk derivatives, the company starts to fail. AIG is a great example of derivatives gone bad. The turn happens suddenly and most investors are caught unaware. The investor is left holding the bag.

Certain indices and industries have a propensity to be more heavily weighted with companies using derivatives. Accidentally diversifying into the indices ensures investors a high risk investment.

The concept of diversification was created at a time when the stock market was advancing. The goal was to obtain consistent returns over a period of years through a rather brilliant plan of investing broadly in an index. Yet, when the market is declining, the plan changes from consistent returns to a consistent loss. We work too hard for our money to throw it away on a concept that guarantees a loss.

Learn more about this author, T.J. Wolfe.
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Positive

by Skip Raschke

Created on: January 13, 2010   Last Updated: January 14, 2010

When it comes to portfolio diversification, you either must be diversified in some regard, or never, ever take your eyes off your portfolio!  For those who choose not to diversify, with all of their eggs are in "One Basket", they had better not "drop that basket".  Being diversified in a portfolio's holdings implies being mostly "long" (owning) securities via a variety of industries as well as financial instruments of each (common stock, preferred stock, bonds, long puts, short covered calls, etc).

The theory behind the principle of diversification is that by being so, one tends to be reducing risk while allowing for a slightly less reward relative to the aforementioned "One Basket" gambler. Beta is what a professional money manager relies on in order to control portfolio risk relative to a variety of portfolio holdings. Beta represents the potential return of a stock and/or portfolio relative to the financial market as a whole. The "One Basket" gambler will not be concerned with beta, instead "rolling the dice" as only gamblers do.

The "One Basket" gambler is accepting the fact that he/she is truly by definition, gambling.  The diversified portfolio by definition is not gambling, but instead, speculating. The difference between gambling and speculating lies in the numerical fact that the gambler almost Never has a 50-50 chance of winning. The speculator is on the correct side of the odds fulcrum, always having the odds at least 51-49 or better in his/her favor before "placing the bets".  70% of the movement of any stock is directly affected by the overall condition of the stock market. The remaining 30% pertains to the stock's underlying company and its economic performance, as well as the industry to which the stock is related. The "One Basket" gambler must have the stock market direction in his/her favor, the future of the "One Basket" company's financial performance in his/her favor, and the industry to which it belongs doing well and continuing to do so. Fall down on any of these 3 criteria and the "One Basket" gambler is in serious trouble.

As for portfolio diversification, the art if not mathematical science of doing so is predicated on knowing that diversification of a portfolio is governed by the proverbial "bell-shaped curve".  Thus even though the portfolio might be diversified, it might be diversified too much so! The optimal number of stock holdings within a portfolio should probably be about 10 stocks, each stock representing an industry both unrelated to another in the portfolio as well as being in an industry that is currently considered by professional stock analysts to have excellent future potential accompanied by moderate risk. The timing of the construction of the portfolio should commence after the stock market has suffered a bear market period, which has been overcome by optimism for its future performance. Each purchase of shares of a given stock should be done in phases, most preferably in 3 parts. The purpose of doing so is to get the best averaged price, allowing for price fluctuations within a certain period of time. One month should suffice.

The "One Basket" gambler must be correct in all levels of the purchase and the holding period of the stock in question. The diversified speculator does not have that binding collar. The "One Basket" gambler is subject to being affected by the general direction of the stock market as is the diversified speculator, with the heavily added risk that should something go wrong, there is no second chance for recovery. The "One Basket" gambler does not have the luxury of other stocks hedging the trouble that the "One Basket" gambler has encountered. Over the long run, mathematically as well as historically, a diversified portfolio far outperforms the "One Basket" approach to making money consistently in the stock market.

Learn more about this author, Skip Raschke.
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