Goldman in a note from Wednesday said Amazon has typically bested overall online sales growth by 23 points. That would suggest a 38 percent jump this season, below the 40 percent increase Wall Street expects Goldman wrote.
Earlier this week, data firm comScore said U.S. e-commerce sales in the first 8 weeks of the November and December holiday season rose 15 percent compared to the year-earlier period.
Shares of Amazon were down $5.71 to $168.18 in early trading.
Separately, Amazon said on Thursday it has sold more than 1 million Kindle e-reader and tablet devices per week this month.
(Reporting By Phil Wahba; editing by Mark Porter)
Posted by Jason Lomberg, Technical Editor