For years, brazilian retailers approached the final quarter with three dates in mind: Children’s Day, Black Friday and Christmas. They still matter. But while stores plan those campaigns, shoppers are getting invitations to buy on three other dates: 10.10, 11.11 and 12.12.

It is a change in the calendar that could also change when people decide to shop.

The 11.11 sale grew out of Singles’ Day in China. A celebration of being single became a shopping festival. The four ones made the date easy to recognize and remember. With investment and repetition, it became an occasion to buy. www.alibabagroup.com

In 2025, nearly 600 brands generated more than RMB 100 million in sales during the festival on Alibaba’s platforms. In Brazil, Shopee said it sold 20 million items in a single day on 11.11 that same year. These figures come from different companies and measure different things. They tell us nothing about sales in physical stores. But they do show how much attention the platforms can bring to the date. home.alibabagroup.com

And that is precisely the point.

There is no reliable nationwide figure proving that these double day promotions are already generating additional revenue for physical stores in Brazil. For many stores, they may not be. The movement gained momentum on platforms that invest in advertising, coupons and entertainment to bring shoppers back month after month.

For this year’s 9.9 campaign, Shopee announced R$20 million in coupons. That is an investment in making people notice the date. And this is not simply a contest with products shipped from abroad. In June 2026, the platform said local stores accounted for more than 85% of its sales in Brazil. shopee.com.br

A physical retailer does not need to copy a marketplace. But it should recognize that its customers are being invited to shop on new dates. If someone walks into a store on November 11 and finds exactly the same experience they would on any other day, all the attention built around 11.11 stays outside.

There are three particularly interesting opportunities still ahead this year.

October 10 falls on a Saturday, two days before Brazil’s Children’s Day. For a toy store, a children’s clothing shop or a gift retailer, it could be a chance to help undecided customers choose something they can take home immediately.

November 11 comes sixteen days before Black Friday. Instead of moving the entire sale forward, a store could select one category, test an offer and meet customers who might not yet know the business. It could also learn what they want before the main November campaign.

December 12 is another Saturday, thirteen days before Christmas. By then, many people simply want to get their gifts sorted. Seeing the product, getting a recommendation, putting together a gift set, having it wrapped and taking it home can be worth as much as a few extra percentage points off the price.

None of this guarantees additional sales. A promotion might merely bring forward a purchase that would have happened on Black Friday or before Christmas. It might lift revenue for one day while reducing the month’s margin. That is why any test needs to be measured carefully: how many people came in, how many bought, what was the margin and what happened in the following weeks?

I would start with just one date. Choose a category, a small selection of products and a clear reason to visit the store. Make the offer visible in the window, on WhatsApp and across social media. Then compare the results with a similar period.

The aim is not to add three more clearance sales to the year. It is to find out whether these dates can generate new visits, new customers and purchases that would not otherwise have happened.

Marketplaces have already made people notice double day promotions. Physical retailers now have to find out whether they can turn that attention into something of their own.

Shoppers have added new dates to their promotional calendar. The question is whether your store will have something relevant to offer when those days arrive.