Prime helps Amazon capture nearly half of all holiday e-commerce sales By: MarketWatch December 27, 2017 at 11:48 AM EST Amazon’s market share for online holiday sales is up this year versus last year, with Prime a “golden jewel,” GBH analysts say. Read More >> Related Stocks: Amazon.com Best Buy Dollar Tree Five Below Inc J C Penney Company Inc Kohl's Corp Rite Aid Corp Target Corp Wal-Mart Stores, Inc.