A new report out from Opera looks at mobile shopping habits, and has determined that Sunday is the best day of the week when it comes to sales from mobile shoppers.

“Unlike desktop traffic to e-commerce sites, which tends to peak on Mondays and remains stronger during weekdays than on weekends, mobile shopping traffic is highly concentrated on Sundays,” Opera says. “One possible explanation is that many consumers use their mobile devices to browse products over the weekend, then revisit and purchase when they return to their desks on Monday. The day with the lowest mobile shopping traffic is Friday.”

The report also looks at monthly trends by geography:

“Online shopping has become a major force in global markets. And, with the holiday shopping season upon us in the United States, we see mobile’s share of that market accelerating,” says Larry Moores, Vice President for Consumer Mobile Reporting and Analytics at Opera.

As you might expect, Amazon and eBay dominate mobile shopping traffic with Amazon leading at a 36.3% market share in the U.S. That’s compared to 16% for eBay and 11.5% for Craigslist.

For big-box retailers that offer mobile shopping, Walmart saw the highest volume, followed by Target and Sears. Walgreens, Lowe’s, Macy’s, Kohl’s, Barnes & Noble, Kmart and Nike saw notable increases.

The full report is available here.

Image via Opera