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Amazon’s tablet business grew at a faster rate than any other vendor in the critical holiday quarter, shipping 5.2 million units and posting year-over-year growth of more than 175 percent, according to new numbers released this morning by the IDC research firm.

Amazon’s Echo smart speakers have led the way for years, but the market has become much more competitive recently. Amazon’s chief rival Google is gaining ground in the space, and a report out earlier this week found the Google Home Mini was the top selling smart speaker in the second quarter, though Amazon’s devices still outsold Google in aggregate.

Amazon’s biggest device event yet delivered a dizzying array of 13 new products, nine new or updated developer tools and countless Alexa capabilities.

American Airlines is the largest carrier in the US by number of planes in service, revenue, profit, and number of passengers carried. Delta Airlines is the largest US carrier by market capitalization. Twenty-four of American's fleet of 900 planes are Boeing 737 MAX jets.

Among the listed companies, 28.4 percent are online gaming firms, taking the largest proportion. E-commerce and culture and media are the second- and third-largest categories in terms of the number of listed firms, accounting for 14.7 percent and 10.8 percent respectively.