There are two major trading markets for exchanging financial assets: the spot market and the futures market. Financial assets are traded quickly in the spot market, and the transaction is carried out at the holder’s discretion. The deal in futures is settled at a later date.

©2015 Bloomberg News NP320VSYF01U (Bloomberg) — Google Inc. has been trying to make its mark in mobile payments since 2011 without much success. Now, the Web company is betting that a new feature called Android Pay will help it challenge Apple Inc., which entered the fray last year. Android Pay,