Welcome to another edition of CNBC's Daily Open. The U.S. intervention to bolster the yen last week may have more global significance than it appears, as reports suggest that Washington sold euros to fund this intervention to avoid any negative impact on the sensitive Treasury market. It's also earnings galore around the globe, with Amazon, HSBC and Aramco some of the big names that have reported today. One possibility is that Washington wants to avoid destabilizing the sensitive Treasury markets. Industry veterans told CNBC that one of Washington's biggest concerns was avoiding a scenario where Japan would need to dump large quantities of Treasurys to finance unilateral intervention.