This report provides an overview of the top 10 US ecommerce companies in our 2020 forecast, including analysis of growth trends for Amazon, Walmart and Target.

eMarketer principal analyst Andrew Lipsman and senior forecasting analyst Cindy Liu preview eMarketer's upcoming report and forecast on the top 10 ecommerce companies in the US.

The 2019 holiday season posted modest retail sales growth amid a strong consumer economy but challenging calendar. With more economic risks ahead, the 2020 season may be even more challenged for growth.

Positive US macroeconomic conditions will contribute to the first-ever $1 trillion holiday season, but retailers facing a series of headwinds should pay attention to seven key trends that will determine their ultimate success.

Among the 250 retailers Sailthru evaluated in its Retail Personalization Index, 51% have messaging preference centers, but most offer just two options: all or nothing. Just 35% go more granular, allowing consumers to select their preferred messaging frequency and type.

Just 16% of the 250 retailers in Sailthru’s annual Retail Personalization Index said they use customers’ digital data to personalize their in-store experience, mostly through mobile devices. And that number is 100% among the top 10 retailers.

eMarketer principal analyst Andrew Lipsman discusses how stores are adapting to their customers' lifestyles, why Target saw a rush of back-to-school shoppers, how consumers feel about shopping at Best Buy and more.

This follow-up to our Amazon Prime Day 2019 preview report analyzes the post-event results for Amazon and other retailers, and its implications for back-to-school season and beyond.

Despite protests, technical concerns and stiff competition from ecommerce rivals, Amazon managed to hold its most successful Prime Day yet. Though the company did not disclose its sales figures—or how many new Prime members were added—Amazon announced that it sold 175 million items during the two-day event and surpassed its combined sales total from Black Friday and Cyber Monday in 2018.

It may have started as a holiday manufactured by Amazon, but Prime Day has become one of the biggest shopping events of the year. Nearly every major online retailer—including Walmart, Target and eBay—now offers competing sales during the annual July shopping event. For many Prime Day shoppers, the search for the best deals online doesn’t end with Amazon.

As the US smartphone market decelerates, Apple and Best Buy have been experiencing slower sales growth, and we forecast that the number of smartphone users will grow just 3.0% in 2019.

2018 was a banner year for US holiday retail sales across both brick-and-mortar and ecommerce. But with more economic uncertainty ahead, the 2019 holiday season is not shaping up to be quite as strong.

Amazon will claim nearly half of US retail ecommerce sales in 2018. Sales will be driven by Amazon’s marketplace, which will account for 68.0% of business.

The latest round of tariffs imposed by the Trump administration could come as soon as this week. The retail industry might not feel the full impact of these measures until 2019, but additional fees on goods from China will undoubtedly affect US trade, especially if China follows through with threats of retaliating tariffs.

Doom and gloom often surrounds discussion of brick-and-mortar retail. It's hard not to see the demise of traditional stores like Sears and Toys 'R' Us as bellwethers for the industry. Many stores are closing locations but is it as dire as it seems on the surface?

Amazon Prime Day has emerged as a fast-growing retail promotion that’s altered the mid-summer and back-to-school shopping landscape. This report examines what consumers shopped for and bought on Prime Day, and the implications for Amazon and competing retailers.

Marketing to millennials is a top priority for many brands, but treating the demographic as a single group misses the opportunity for precise targeting.