New York (CNN Busienss) Sears' make-or-break holiday shopping season didn't get off to a very good start.

Foot traffic was down at Sears and Kmart stores last weekend, according to research from inMarket, a location-based research firm that tracks customer traffic at brick-and-mortar stores using anonymous GPS data from the smart phones of 50 million shoppers. Sears and Kmart make up Sears Holding, which filed for bankruptcy on October 15.

The data shows foot traffic at Sears and Kmart was down 14% over the three days that followed Thanksgiving, compared to the same holiday weekend a year ago. Traffic was down 17% on Black Friday, 7% on Saturday and 16% on Sunday, according to the research.

The research factors in the hundreds of stores that Sears has closed since the end of 2017 and only looks at foot traffic at stores open during both shopping periods.

Sears has yet to disclose any sales or traffic data for the start of the season. A spokesperson for Sears Holdings declined to comment.

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