How to find companies with high long-term value by understanding key trends Warren Buffett once said that his favorite holding period for a stock is "forever.” Now James Altucher shows how to find "forever” stocks—ones you can safely buy and hold for at least twenty years. These companies will profit from broad demographic trends and can ride out any short-term market fluctuations. For instance, Altucher says it's smart to invest in: Obesity: 33 billion dollars are spent each year on services for the obese Dirty Water: Developing countries are finding it much harder to deliver clean water to their growing populations, and companies that sell clean water treatment technologies will thrive Luxury: The rich are recession-proof, and the stocks of luxury producers make a great hedge against any slowdown in the global economy The Forever Portfolio shows investors how to build a strong, consistent, long-term portfolio, diversified enough to withstand the various cycles of the market.