Marketers aggressively retargeted online shoppers on the Tuesday after Cyber Monday, hoping to persuade consumers to purchase items they browsed during the heavily promotional Thanksgiving weekend period, according to data from digital marketing firm AdRoll provided exclusively to Internet Retailer.

That’s led AdRoll to dub the day “Retargeting Tuesday.” AdRoll looked at marketing spend on Black Friday, Cyber Monday and Retargeting Tuesday and compared it to the marketing spend on the first Monday in November, as a control. The data come from the more than 15,000 advertisers who use AdRoll’s marketing platform, which is primarily a retargeting platform.

Marketers increased their spending with AdRoll 76.0% on Retargeting Tuesday, 40.0% more on Thanksgiving, 41.2% more on Black Friday and 48.6% more on Cyber Monday. AdRoll completed the same analysis on 2013 and found that marketers increased spending on Cyber Monday nearly 40.0% and just over 30.0% on Retargeting Tuesday. (AdRoll did not release specific 2013 figures.)

AdRoll’s president and chief marketing officer Adam Berke says about 80% of the marketing spend through AdRoll’s platform is on retargeting campaigns, targeting consumers that have visited a web site or added an item to a cart, for example. “This is a reflection of how retailers prioritize retargeting among their marketing mix,” he says. “They realize that retargeting is one of their top channels. Marketers have gotten a lot more sophisticated this holiday season.”

Conversions were up this year for AdRoll clients, too. On Black Friday, retail conversions were up 22% from 2013. On Cyber Monday, retail conversions were up 15%. For Black Friday and Cyber Monday combined, conversions were up 20%. AdRoll did not release specific conversion rate data. or an increase figure for the Tuesday after Cyber Monday.

AdRoll also looked at sales by industry. On Black Friday, Cyber Monday and Retargeting Tuesday, retail accounted for 60% of all sales conversion of AdRoll clients. On Black Friday, apparel retailers accounted for 70% of the retail conversions and 42% of all conversions. Sporting goods accounted for 9% of retail conversions, childrens’ products accounted for 7% of retail conversions, cosmetics 5%, consumer electronics 5% and consumer product goods 4%. The category breakdown was similar for Cyber Monday and Retargeting Tuesday.