Any know where I can get a hold of free stock data dating back to the early 1900s? I know of many services that charge an unnecessary amount of money, but doesn't the NYSE keep that data public somewhere? has anyone done any studies on stock price movements of stocks in the early 1900s? Do they move similar to the way they move now? My guess is that they do move similar, but because stocks were thinner and there was more imperfect information, they had more volatility. Any help appreciated!