Study: 37% of Retailers Now Have Mobile Sites

Earlier this year Google reported that the overwhelming majority (79%) of its top advertisers didn't have a mobile-optimized site. However, a new analysis from the Acquity Group found that a substantial number (37%) of the Internet Retailer Top 500 companies now have a mobile site.

This is up from a level of 12% last year and only 4% in 2009. Those are dramatic increases, reflective of retailers responding to massive consumer adoption of smartphones. The study also reported that roughly 26% of retailers have at least one mobile app; and 18% had both a mobile site and an app.

Screen shot 2011-10-31 at 11.40.01 AM

While 37% have a mobile site, about 26% have one or more apps -- with the iPhone leading the way:

Screen shot 2011-10-31 at 11.43.28 AM

The "Top 10" mobile retailers were: Amazon, Armani Exchange, Barnes & Noble, Buy.com, Cabela’s, Gilt Groupe, The Home Depot, Newegg, Walgreens and Wal-Mart. Here's the hierarchical ranking according to Acquity's scoring: 

Screen shot 2011-10-31 at 11.43.13 AM

An interesting question is whether mobile revenues for these retailers are at all commensurate with their investments in the user experience. With Amazon at least, we know that has been true.