Collectively, about 6,000 companies are listed on the New York Stock Exchange and the Nasdaq Exchange, according to the Securities Industry and Financial Markets Association (SIFMA). Many of those companies are grouped into major indexes that measure various aspects the domestic market.

Wall Street edged back from an all-time high following mixed profit reports from big companies. The S&P 500 barely budged on Friday and slipped by a hair, a day after rallying within 0.1% of its record set last month.

In the wake of plans for a Texas exchange, the New York Stock Exchange announced a branch relocation to the Lone Star State.