Money, Mind And Meaning

Momentum has existed for hundreds of years and has persisted for two decades post discovery. This sort of staying power in capital markets full of hungry arbitrageurs is always the mark of human psychology. Many experts consider momentum to not just be a factor but THE factor. Fama and French don’t mince words, “The premier market anomaly is momentum. Stocks with low returns over the past year tend to have low returns for the next few months, and stocks with high past returns tend to have high future returns.” As James O’Shaughnessy says, “of all the beliefs on Wall Street, price momentum makes efficient market theorists howl the loudest.” In a perfect world, there would be no good reason to pay more for a business today than yesterday simply because of positive price action. But this isn’t a perfect world, it’s a world ruled by human behaviour and thus exhibits all of the attendant quirks. Like peanut butter and chocolate, momentum and value are wonderful on their own, but even better together. Cliff Asness