Wendy's unleashed a competitor to McDonald's and Burger King -- and now the business is on fire

Wendy'sFacebook/Wendy’sWendy’s ‘4 for $4’ promotion includes a Jr. Bacon Cheeseburger, chicken nuggets, fries, and a drink for $4.

Wendy’s sales are soaring.

The burger chain’s same-store sales increased 4.8% in the fourth quarter, marking the best same-store sales gains in four years, the company reported Tuesday.

One of the main drivers behind Wendy’s momentum has been its new “4 for $4” promotion, according to Nomura analyst Mark Kalinowski.

The promotion, which launched nationwide in October, includes a Jr. Bacon Cheeseburger, chicken nuggets, fries, and a drink for $4.

Several major fast-food chains started offering bundled meal promotions in recent months, including McDonald’s “McPick 2 for $2” and Burger King’s “5 for $4.”

But Wendy’s was one of the first chains to offer the bundled promotion nationwide.

Burger King “management says that it may have attained a sort of first-mover advantage by being the first national burger chain to start promoting a bundled meal at this $4 price point nationally,” Kalinowski wrote in a recent note.

Kalinwski’s restaurant checks validated the company’s theory.

“Indeed, our [restaurant] checks indicate that subsequent offerings, such as Burger King’s “5 for $4” bundled meal and Hardee’s/Carl’s Jr.’s “$4 Real Deal” did not adversely affect Wendy’s business at all, at least during January,” Kalinowski writes.

NOW WATCH: We tried the new value menus at McDonald’s, Burger King, and Wendy’s — and the winner is clear


NOW WATCH: Briefing videos

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.