Alphabet Inc's Google is picking up a 6.6% stake in ADT Inc for $450 million, betting on the home security company's strong customer base and an army of technicians to drive sales of its Nest devices. | Video
Apple Inc's surged over 10% to a record high on Friday after reporting blockbuster quarterly results, helping the iPhone maker eclipse Saudi Aramco to become the world's most valuable publicly listed company.
Facebook Inc beat analysts' estimates for quarterly revenue on Thursday and forecast similar growth ahead, as businesses tapped its digital ads tools despite an unprecedented boycott and the economic upheaval of the coronavirus pandemic. | Video
Many of Apple Inc's physical stores re-opened and re-closed in recent months because of spikes in cases of the novel coronavirus.
Investors have pushed shares of Microsoft Corp up almost 30 percent since the start of the year, betting that the pandemic-induced shift to more remote computing will boost its business.
Smaller U.S. companies will bear the brunt of the economic downturn triggered by a prolonged coronavirus crisis as they struggle to cut costs as much as bigger multinational peers, analysts' estimates compiled by Reuters showed.