PayPal Tumbles As Amazon Muscles Into Digital Payments By: TalkMarkets May 02, 2018 at 17:22 PM EDT Amazon's ultimate goal: To capture a piece of the "swipe fee" market, which is a $90 billion-a-year business for banks like JPMorgan and Citigroup. Read More >> Related Stocks: Amazon.com Citigroup JPMorgan Chase & Co MasterCard Paypal Holdings Wal-Mart Stores, Inc.