The browser plugin that hunts for online shopping bargains is "amongst the most transformative acquisitions in PayPal’s history."
The stock had risen 42% this year as the warehouse retailer benefited from strong consumer spending.
The private-equity giant has been building its "last-mile" logistics business amid a surge in e-commerce demand.
Jonathan Johnson had been serving as interim CEO since the abrupt departure of controversial founder Patrick Byrne last month.
A new eBay service will enable merchants to store inventory in strategically located warehouses, resulting in faster delivery times.
The pet pharmacy "has yet to figure out an effective strategy at combating newcomers" like PetSmart's Chewy.com.
Alibaba's move to open its platform to U.S. sellers puts it "in direct competition with Amazon in the business-to-business online marketplace."
The online marketplace benefited from an increase of buyers.
The retail and tech giant will expand its training programs to help employees move into more advanced roles.
The company says its finances have wilted as the expected benefits from its $430 million acquisition of ProFlowers have not materialized.
The $18.7 billion deal is a bet on the future of e-commerce and logistics growth.
The retailer fell short on earnings and revenue last quarter and same-store sales dropped more than 3%.
