M.Video, a large electronics and appliances retailer in Russia, conducted an A/B test of Yandex's new smart banner format against other Yandex advertising formats from October-November 2015. Smart banners are hybrid contextual/media ads that dynamically insert relevant product offers. The test found that smart banners had lower cost-per-click and cost-per-conversion than other Yandex formats like search and thematic ads, with the exception of search ads for M.Video's own brand terms. Smart banners also generated 12.5 times higher revenue than the advertising budget and had a cost-per-acquisition 6.7 times lower than thematic ads on Yandex. Based on the successful test, Yandex planned to open