Questions are being raised about the future of Zappos after Amazon CEO Jeff Bezos released his annual shareholder letter.
Amazon now owns the Las Vegas-based shoe retailer.
Analysts, such as those at Bloomberg, say Zappos only brings in a tiny fraction of Amazon's $136 billion in revenue.
Because Amazon's own shoe business leads the market with 26 percent of online sales, some analysts predict Amazon could shut down Zappos as a result.
