A clearing house is an intermediary between buyers and sellers of financial instruments. Further, it is an agency or separate corporation of a futures exchange responsible for settling trading accounts, clearing trades, collecting and maintaining margin monies, regulating delivery, and reporting trading data.
All the world's 10 most valuable companies, including Alphabet, Apple (AAPL) and Microsoft (MSFT), are based in the U.S., according to a USA TODAY analysis of data from S&P Capital IQ based on the S&P Global 1200 index. Alphabet's rise to No. 1 with a market value Tuesday of $554.8 billion is a historic moment.
On February 1, 2016, Alphabet Inc. surpassed Apple to become the world's most valuable publicly traded company until February 3, 2016, when Apple surged back over Alphabet to retake the position. Experts cited Apple's lack of innovation as well as increasing Chinese competition as reasons for the poor performance.