Established in 1792, the New York Stock Exchange has become the world’s largest stock exchange. Until 2006, the NYSE was a private enterprise. In March of that year, the exchange offered its first publicly-exchanged shares, and today it is owned by the Intercontinental Exchange (ICE) - a US company based in Atlanta Georgia, which owns - among others - the New York Board of Trade, the Climate Exchange, Standard & Poor's Securities Evaluation and more.
Considered the most popular of all economic indicators, it is the monthly measure by the US Dept. of Labour of the number of people added to the ranks of non-seasonal employment (not including farm-workers, private household employees and non-profit employees) who directly contribute towards 85% of the US's GDP.
The New York Butter & Cheese Exchange was established in 1872 to govern the trading of basic commodities. Ten years later, it was renamed the New York Mercantile Exchange and became a futures exchange dealing in metals, energy and other products.