The overall stock market has had a run of flat performance over the last several years. If you look at the performance of the S&P 500 from 1999 through 2005, you'll see that it was up about 0.2% compounded annual return, not much better than a money market fund, and the Nasdaq 100 has fared even worse. Granted, it got there in an interesting way, but overall it basically went nowhere.

For an investor looking to better that performance, what are the alternatives to index funds or buy and hold investing? Sector fund investing, using a rotation strategy has been shown to work by a variety of different newsletters and advisors. Many of the top performing newsletters in the Hulbert Financial Digest use some variant of this type of strategy. This is easily done using sector mutual funds, such as the Fidelity Select Funds family.

Here we look at a mutual fund trading system that trades the Fidelity Select Mutual Funds. The Fidelity Select Mutual Funds are a good choice for several reasons:

* Fidelity Select Mutual Funds historically have persistence in their trends so they can be held for the Fidelity imposed minimum 30 day holding period while realizing a return well above that of the market.

* If you hold the funds for a 30 day minimum, Fidelity allows unlimited trading with no redemption fees.

* With over 40 Fidelity Select Funds, there is a sector fund is available to track most market sectors. If there is strength in any domestic market sector, youíll probably capture it using Fidelity Select Funds.

* Fidelity's minimum investment requirement for the Fidelity Select Funds is only $2500 per fund, so thatís all you need to start. Fidelity has eliminated the load on the Select funds, so there is no up front cost†to get into them.

Many sector rotation strategies have been published, dating back to the late 1990ís, but this one is one of the simplest for you to follow. The steps are as follows.

1) Track the 25 day (or 5 week) price change in all of the Fidelity Select Mutual Funds.

2) Invest in the Fidelity Select Fund with the highest percentage gain over that 5 weeks.

3) Hold that Select fund for at least 30 calendar days, to avoid the Fidelity early redemption fees.

4) After 30 days, if that Select Fund is still the top Select fund, continue to hold it. Otherwise, exchange it immediately for the currently top ranked Select fund.

5) Hold the new Select Fund for 30 calendar days

For the 1999 to 2005 years that the major indices have been almost flat, this sector fund rotation system would have gained almost 200%, or over 16% per year.

There is one significant drawback to this system. It does not have a much better drawdown than the overall markets. During the down years of 2000 to 2002 this strategy had a drawdown of almost 50%. Fortunately, it has achieved new all time highs in 2006, but that kinds of drawdown need to be factored in to how much you might want to invest in this or any investment strategy.

As you can see, even a simple sector rotation strategy can give a real performance advantage over buy and hold investing. This type of strategy should be part of every investor's portfolio.