NASDAQ OMX 100 Index

What do the largest 100 NASDAQ-listed companies in Denmark, Finland, Iceland, Sweden, and the United States have in common? That’s right—they’re all part of an exclusive club known as the Nasdaq QMX 100 Index.

This index is market capitalization-weighted, which means that each security is weighted according to its market capitalization (market capitalization = number of outstanding shares x the price of each share). Its whole purpose in life is to track those companies’ stocks and tell the rest of the world how they’re doing in terms of innovation, globalization, technological advancements, etc. (Fun fact: this index tends to outperform the market as a whole.) And, since the index is all multinational and stuff, we can see data in both dollars and euros, which is pretty fancy.