LOS ANGELES — Five years ago Best Buy looked like a retail dinosaur, another victim of e-commerce juggernaut Amazon.com and other online sellers.

The big-box electronics chain was suffering dwindling sales and profits in good part because of “showrooming,” when shoppers would come in to a Best Buy store to check out televisions, computers and other items in person, and then buy them at cheaper prices on Amazon or elsewhere online.

Best Buy also was struggling with executive turmoil and facing a buyout threat from a major stockholder. The chain in 2012 named a new chief executive, Hubert Joly, but the Frenchman came from the hospitality field and had no retail experience. His appointment stunned analysts, with one saying that fixing Best Buy was “a herculean task even for an accomplished retail executive.”

But Joly has proved up to the task so far. Under his turnaround plan, Best Buy has rebounded to remain one major U.S. retailer that’s holding its own in the face of Amazon’s relentless growth and the conventional retail industry’s slump.

Best Buy “came out the other side successfully to defend itself against Amazon,” said Peter Keith, an analyst with the investment firm Piper Jaffray & Co.

As more consumers shift to online shopping, other brick-and-mortar retailers have closed thousands of stores in the last year. A few have filed for bankruptcy protection, including rival electronics chain RadioShack.

Best Buy still operates 1,600 outlets, and Joly views the stores as “a great asset” even as Best Buy also moves increasingly to online sales.

“We don’t see ourselves as a brick-and-mortar retailer, we’re a multichannel retailer” that combines the stores, Best Buy’s website and its phone app to boost sales, Joly said in an interview. And he’s planning to expand Best Buy’s services, including its Geek Squad support arm, to generate more product sales.

Best Buy’s sales and profits have stabilized and its stock price, which closed at $55.79 a share Tuesday, has soared more than fourfold since late 2012, far outpacing the broader market.

The company’s same-store sales — that is, sales at stores open at least 14 months, and a key retail measure — have continued to rise modestly the last three years, reversing four years of declines.

Its domestic same-store sales edged up 0.3 percent in its fiscal year that ended Jan. 28, 2017, then jumped 1.6 percent in its first quarter, which ended April 29.

Best Buy’s U.S. online sales rose 21 percent in fiscal 2017 and accounted for $4.85 billion, or 12 percent, of Best Buy’s total sales.

But Best Buy’s overall annual revenue has remained flat because the consumer-electronics industry as a whole is growing less than 3 percent a year, according to some analysts.

“While economic conditions are gradually improving and will likely boost consumer spending, individuals are buying fewer of the big-ticket items that sustained rapid growth in the past,” the research firm IbisWorld said in a recent report.

“Consumer interest in big-ticket items, such as TVs and personal computers, has waned due to market saturation and slowing innovation,” the firm said.

That’s keeping pressure on Best Buy, based in Richfield, Minn., to keep wringing more profit from each dollar of revenue if it hopes to maintain its momentum. Joly already has shown it can be done.

His first move was to match rivals’ prices, especially those at Amazon, so that in-store shoppers no longer needed to buy elsewhere. “We had no choice, we had to take price off the table and match online prices,” Joly said.

That appeals to customers such as Scott Vellman of Los Angeles, who bought the “Battlefield 1” video game for his Xbox One player at a Best Buy store in Los Angeles last week after Best Buy matched its $50 price on Amazon. “I bought it here (instead of online) because I didn’t want to wait for it to ship,” Vellman said.

Best Buy next sped up its delivery times, in part by expanding its national distribution centers, and beefed up its website and phone app so that customers could order online and pick up their products at the stores or have them delivered.

Many of the DVDs and CDs that once were a staple of Best Buy stores were cleared out, leaving room for Best Buy to invite such electronics vendors as Samsung, Microsoft and Verizon to set up “stores within the stores” inside Best Buy’s outlets.

“That enabled Samsung, for instance, to have 1,400 stores in the U.S. in our stores, which would have taken years to build” on its own, Joly said.

The inside-store vendors also include Pacific Sales, a seller of appliances, fixtures and other household products that Best Buy bought in 2006, along with Magnolia, a Best Buy unit that sells premium audio and visual gear.

Best Buy shed its Chinese and European businesses in 2015. The company also has stripped $1.4 billion from its annual operating costs by renegotiating supply agreements and real estate leases and by closing more than a dozen large stores and 40 smaller ones, among many other steps.

The company plowed a chunk of the savings into better training its employees so that they can explain products to shoppers, which Joly believed was crucial because new technology often is confusing.

Best Buy also is rolling out an in-home advisory service, where consumers get a free consultation on how to connect products in their homes, including TVs, computers, video games, thermostats and home-security networks.