PHOTO: John General/CNN
Now playing
01:53
This shopping cart knows what you're buying
PHOTO: Orangetheory Fitness
Now playing
02:13
This gym is actually opening studios during the pandemic
Now playing
02:24
How holiday spirit is surging despite the Covid-19 pandemic
NEW YORK, NEW YORK - NOVEMBER 19: A view of the window display as Macy
NEW YORK, NEW YORK - NOVEMBER 19: A view of the window display as Macy's Herald Square unveils Give, Love, Believe 2020 Holiday Windows on November 19, 2020 in New York City. (Photo by Eugene Gologursky/Getty Images for Macy's)
PHOTO: Eugene Gologursky/Getty Images North America/Getty Images for Macy's
Now playing
00:56
Macy's unveils holiday window display with gratitude theme
PHOTO: CNN/Target/Design by John General
Now playing
02:36
It's official: Black Friday is irrelevant
Now playing
02:23
Party City CEO: Consumers still want to celebrate together
NEW YORK, UNITED STATES - 2020/07/08: People wearing face masks shopping inside a retail store in Manhattan as the city enters phase 3 of reopening amid the coronavirus pandemic
As New York City enters phase 3 of reopening retail stores for indoor shopping, restaurants have been postponed for indoor dinning. The U.S. Department of Health recorded a total of 3,219,999 infections, 135,822 death and 1,426,428 recovered since the beginning of the outbreak. (Photo by Braulio Jatar/SOPA Images/LightRocket via Getty Images)
NEW YORK, UNITED STATES - 2020/07/08: People wearing face masks shopping inside a retail store in Manhattan as the city enters phase 3 of reopening amid the coronavirus pandemic As New York City enters phase 3 of reopening retail stores for indoor shopping, restaurants have been postponed for indoor dinning. The U.S. Department of Health recorded a total of 3,219,999 infections, 135,822 death and 1,426,428 recovered since the beginning of the outbreak. (Photo by Braulio Jatar/SOPA Images/LightRocket via Getty Images)
PHOTO: Braulio Jatar/SOPA Images/LightRocket/Getty Images
Now playing
01:38
US retail sales improved in September
PHOTO: thehouseofdrew.com
Now playing
02:01
Justin Bieber's footwear collaboration overwhelms site
PHOTO: Walmart
Now playing
01:01
See what's new inside Walmart stores
WHEATON, MARYLAND - APRIL 16: Customers wear face masks to prevent the spread of the novel coronavirus as they line up to enter a Costco Wholesale store April 16, 2020 in Wheaton, Maryland. Maryland Governor Larry Hogan ordered that all people must wear some kind of face mask to protect themselves and others from COVID-19 when on public transportation, grocery stores, retail establishments and other places where social distancing is not always possible. (Photo by Chip Somodevilla/Getty Images)
WHEATON, MARYLAND - APRIL 16: Customers wear face masks to prevent the spread of the novel coronavirus as they line up to enter a Costco Wholesale store April 16, 2020 in Wheaton, Maryland. Maryland Governor Larry Hogan ordered that all people must wear some kind of face mask to protect themselves and others from COVID-19 when on public transportation, grocery stores, retail establishments and other places where social distancing is not always possible. (Photo by Chip Somodevilla/Getty Images)
PHOTO: Chip Somodevilla/Getty Images
Now playing
02:32
How masks are reshaping the face of the retail economy
3119 E Third Street Dollar General in Dayton, OH on March 12, 2020.
3119 E Third Street Dollar General in Dayton, OH on March 12, 2020.
PHOTO: Maddie McGarvey for CNN
Now playing
06:07
Dollar General's business is booming. It's also vulnerable to crime, police say
Now playing
03:01
How private equity is gutting retail
Now playing
01:55
All retail bankruptcies are not the same. Here's what you need to know
Now playing
02:44
Is T.J.Maxx recession-proof?
LOS ANGELES, CA - APRIL 10:  Customers carry bags from  Bed Bath & Beyond store on April 10, 2013 in Los Angeles, California. The home goods retailer is expected to release fourth-quarter earnings figures after the closing bell.  (Photo by Kevork Djansezian/Getty Images)
LOS ANGELES, CA - APRIL 10: Customers carry bags from Bed Bath & Beyond store on April 10, 2013 in Los Angeles, California. The home goods retailer is expected to release fourth-quarter earnings figures after the closing bell. (Photo by Kevork Djansezian/Getty Images)
PHOTO: Kevork Djansezian/Getty Images
Now playing
00:58
Why Bed Bath & Beyond is in big trouble
A Kohl
A Kohl's Corp. store stands in Concord, California, U.S., on Tuesday, Feb. 24, 2015. Kohl's Corp. is expected to release earnings figures on Feb. 26. Photographer: David Paul Morris/Bloomberg via Getty Images
PHOTO: David Paul Morris/Bloomberg via Getty Images
Now playing
01:25
Kohl's needs to reinvent itself. Are Aldi and Amazon the key?
(CNN Business) —  

American retailers capitalized on last-minute shopping this weekend: All those late holiday gifts set a single-day record.

Saturday, December 21, also known as Super Saturday, was US retail’s best day ever, pulling in a record $34.4 billion, according to Customer Growth Partners, a consulting and research firm. That totaled more than four times the sales from this year’s Cyber Monday.

“Paced by the ‘Big Four’ mega-retailers — Walmart, Amazon, Costco, and Target — Super Saturday was boosted by the best traffic our team has seen in years,” said Craig Johnson, president of the firm. “The spending momentum was so strong that even the long-ailing department stores had their best weekend of the season.”

Customer traffic was down at most malls, but the proportion of customers who made a purchase during their visit rose, according to the firm. The firm’s holiday analysis is based on weekly quantitative surveys the company conducts with retailers. Customer Growth Partners has tracked this data since 2005.

An estimated 147.8 million people intended to shop on Saturday in the United States, up from 134.3 million last year, according to an annual survey released last week by the National Retail Federation and Prosper Insights & Analytics.

Retail experts attributed Saturday’s huge increase to a shortened holiday season — there were six fewer days between Thanksgiving and Christmas this year than in 2018 — and a growing economy.

“Robust job and wage growth, along with healthy household finances, drove the increase,” Johnson said.

Retail sales in November and December will grow between 3.8% and 4.2%, to up to $730 billion, the National Retail Federation forecast.

The strong holiday will cap off a mixed year for US retailers.

This year, US retailers announced 9,302 store closings, a 59% jump from 2018 and the highest number since Coresight Research began tracking the data in 2012. Bankruptcies in the retail sector increased and many struggling chains cut stores. That led to a spike in closings.

But some traditional chains had strong years and have adapted to the shift to online shopping. Target’s (TGT) stock has increased 94% this year, while Costco (COST) and Dollar General (DG) are both up 44%.