Should We Track an “Index”, or Follow the Evidence?
Legend has it, a pharmacist named John Pemberton was searching for a headache cure when he tried blending Coca leaves with Cola nuts. Who knew his recipe was destined to become such a success, even if Coca-Cola® never did become the medicine Pemberton had in mind?
In similar vein, when Charles Dow launched the Dow Jones Industrial Average (the Dow), his aim was to better assess stock prices and market trends, hoping to determine when the market’s tides had turned by measuring the equivalent of its incoming and outgoing “waves.” He chose industrials (mostly railroads) because, as he proposed in 1882, “The industrial market is destined to be the great speculative market of the United States.”
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