value traps

To be a great investor, you need to not only invest in great opportunities, but also avoid terrible ones. Here are some value traps you need to learn to recognize:

The quarter-life crisis: Beware the dominant company whose once- sky-high growth has stalled. Its price-to-earnings (P/E) ratio may be just half of its five-year average, and its earnings may have doubled over the past years, but that doesn't mean it will return to former lofty levels. It may have dug itself into a hole by expanding too quickly and paying too much for acquisitions and stock buybacks. Technology may have evolved and competitors may have emerged, stealing some of its thunder (and profits).

The soaring cyclical: Cyclical companies such as semiconductor makers and oilfield services companies, whose fortunes rise and fall with the economy, have counter-intuitive valuations. They look cheapest when they've reached their priciest, and vice versa. A time of high profits means a time of low profits is ahead. Consider these when their P/Es are rising, not shrinking.

The small-cap Methuselah: Here you have century-old small-caps you've never heard of that occasionally grow at rapid rates for a few years. When this happens, Wall Street analysts sometimes expect the growth to continue. But you won't find long-run compounding machines among small-caps. Companies with long histories of creating shareholder value become mid-cap or large-cap companies.

The rule taker: These companies don't have make-or-break rules - they just take them. Their business is standing on the tracks as a technological freight train is about to blow through. Save for a Hail Mary or two, rule-takers are out of options. Examples would be video rental companies in a new age of digital content distribution.

Instead of considering value traps, seek great, simple-to- understand businesses at good prices.