Growth Marketing Glossary

Cyber Monday

cy·ber mon·daynoun

The Monday the internet goes shopping — a 2005 marketing invention that became the biggest e-commerce day of the year.

MONafter Thanksgiving$14.25B onlinethe biggest US online shopping day of the year
Schematic — the post-Thanksgiving Monday that tops online sales
Term
Cyber Monday
When
Monday after US Thanksgiving
Coined
2005, Shop.org / NRF press release
Scale
$14.25B US online in 2025 (Adobe)

Forms & parts of speech

Cyber Monday · noun
The online shopping Monday.
"Black Friday cleared the stores - Cyber Monday cleared the warehouse, with inbox and site traffic peaking at lunch."

Definition in plain terms

Cyber Monday is the Monday after US Thanksgiving, positioned as the online counterpart to Black Friday and now the biggest e-commerce day on the American calendar. Unlike most retail moments, it did not grow out of tradition — it was named into existence. The National Retail Federation's Shop.org division coined the term in a November 2005 press release after spotting a recurring spike in online sales on that Monday, and the name manufactured a self-fulfilling event around behavior that already existed.

The mechanics

The original spike had a practical cause — in 2005, many shoppers had fast internet at the office but dial-up at home, so online buying surged when they returned to work after the holiday weekend. The name, credited to NRF executive Ellen Davis with Shop.org's Scott Silverman, gave retailers a banner to discount under, and the day compounded into a giant. Adobe measured a record $14.25 billion in US online spend on Cyber Monday 2025, up 7.1% year over year, with over $1 billion of it through buy-now-pay-later — the first time BNPL crossed a billion dollars in a single day. For a marketer the day has a distinct shape. It closes the five-day Cyber Week that starts at Thanksgiving, so it catches both deal-waiters and Black Friday's procrastinators; traffic skews toward work hours and mobile; and the merchandising is digital-native — flash windows, hourly drops, email and SMS sequenced through the day. The operating risks are equally distinct. Margins die by blanket discount, sites fall over at exactly the wrong hour, and brands that train customers to wait for the day cannibalize full-price November sales. The craft is selective depth — real discounts on traffic-driving heroes, protected margin elsewhere, and a tested checkout.

When it matters

Cyber Monday matters to any business with a checkout, because customers arrive deal-primed whether you participate or not — silence reads as absence. It matters most to e-commerce brands balancing volume against margin across Cyber Week. The discipline is to plan it as a system rather than a sale: set per-SKU discount depth from contribution margin, sequence email and SMS to the day's work-hour rhythm, load-test the site and payment flow beforehand, and measure the week as one unit so a record Monday is not just demand pulled forward from a full-price Tuesday. Treat the day as acquisition too — first-time deal buyers are only profitable if a retention flow turns them into second purchases at full price.

Worked example. A mid-size apparel brand runs the same 30%-off-everything banner each Cyber Monday and books record revenue at a margin that makes the CFO wince. The next year it plans selectively. Three hero products carry deep, real discounts and all the ads; the rest of the catalog holds at 10%; bundles lift average order value above the discount's bite; and email, SMS, and a noon flash window are sequenced to the day's office-hours traffic curve. A pre-November load test catches a checkout bottleneck that would have buckled at peak. Cyber Monday revenue edges past the prior record, contribution margin comes in 22% higher, and BNPL at checkout lifts conversion on orders over $150. Same day, same demand — the difference was treating the event as margin math and operations, not one big percentage.
Failure modes to watch. Blanket sitewide discounts that buy revenue with margin; sites and checkouts that buckle at peak hour for lack of a load test; training customers to wait for the day, cannibalizing full-price weeks; measuring the Monday alone instead of Cyber Week as one unit; and acquiring one-time deal hunters with no retention flow behind them.

Synonyms & antonyms

Synonyms

Cyber Mondaycyber week mondayonline shopping monday

Antonyms

Black Friday (in-store)full-price trading day

Origin & history

'Cyber Monday' was invented in a Shop.org (National Retail Federation) press release on the eve of Thanksgiving 2005, after analysts noticed online sales reliably spiking the Monday after the holiday — partly because shoppers returned to fast office internet connections. NRF's Ellen Davis is credited with the coinage, alongside Shop.org executive director Scott Silverman, making it a rare retail tradition created by naming it.

Etymology: source.

Usage trends

Search interest for this term over the last five years:

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Common questions

What is Cyber Monday?
The Monday after US Thanksgiving, promoted as the online counterpart to Black Friday — now the largest US e-commerce day, with Adobe measuring $14.25 billion in online spend in 2025.
Where did the term Cyber Monday come from?
Shop.org, part of the National Retail Federation, coined it in a November 2005 press release — credited to Ellen Davis with Scott Silverman — after spotting a recurring online sales spike that Monday.
How should brands plan for Cyber Monday?
Set discount depth per product from contribution margin, sequence messaging to the day's work-hour rhythm, load-test checkout in advance, and measure Cyber Week as one unit with a retention plan for first-time buyers.

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Resources & people to follow

Curated, non-competitor resources verified per term.

Related training

Disciplines

Areas of marketing where cyber monday is a core concern:

Sources

  1. trendsGoogle Trends — "cyber monday"