How Micron’s $50 billion Boise buildout is reshaping its hometown

Dave Petso has been a wealth manager in Boise, Idaho since the 1980s. His business has survived multiple recessions, the bursting of the dot-com bubble and the 2008 financial crisis.

For most of Petso’s 45-year career, Micron, the hometown maker of computer memory, has been a boring enterprise tech company and, in his words, a “terrible investment.”

But almost four years into the artificial intelligence craze, the sleepy semiconductor company is one of the hottest names on the planet, turning many of Petso’s clients into sudden millionaires. A big part of Petso’s job has become helping Micron employees diversify after a more than tenfold increase in the stock since the end of 2024 lifted the company’s market cap past $1 trillion.

“You’ve got a boatload of money now, and it’s all tied up in one company,” Petso said in an interview. Where clients had been figuring out what to do with some $20,000 worth of stock, “now we’re talking about hundreds of thousands or millions of dollars,” he said. 

Across Boise, a Mountain West city of about 250,000 residents that’s best known for outdoor adventures and the blue turf football field at Boise State University, the Micron boom is showing up in the form of job growth, new construction projects, a bustling dining scene and an influx in new residents.

Micron has broken ground on two new chip manufacturing facilities that are expected to create more than 17,000 new jobs in the area. That includes 3,500 at Micron, which currently employs about 7,000 people in and around Boise. 

With the city’s rapid expansion comes plenty of annoyances. Residents complain of frequent traffic jams around town or on Interstate 84, rising housing costs and a rush of people from California and elsewhere altering the local culture and landscape. Average rental prices in Boise have climbed 4.3% in the past year, while average prices nationwide have dropped, according to Zillow.

“One of Boise’s competitive advantages was our low cost of living,” said Jason Crawforth, a lifelong resident of Boise who’s been building tech companies in the area for almost 35 years. But Crawforth said that while he’s seeing his net worth go up from an investment in Micron, “there’s a large demographic of our community that doesn’t have a direct benefit from that.” 

CNBC spoke to residents, business owners, real estate agents and others in the Boise area about the recent boom, its impact on the city and what could still be coming as Micron embarks on a $50 billion expansion plan. They collectively portray the city as an unexpected winner in the global AI buildout, one that’s trying to hang onto its identity while not becoming overreliant on a technology with a long history of boom-and-bust cycles.  

While the trajectory still points up and to the right, Micron shares plunged 29% in July, their worst month since 2002. Shareholders hope it was just a corrective blip, and not a sign of things to come. The stock is up 14% so far in August.

Micron was founded in Boise nearly 50 years ago in the basement of a dental office. By 1981 its first chip fabrication plant was up and running there, pumping out general-purpose memory chips known as DRAM. In its latest quarter, DRAM accounted for 76% of Micron’s total revenue.

Additional AI-driven growth in the area is coming from Meta, which is building an $800 million data center 20 miles southwest, in Kuna, Idaho, that it says will create about 100 operational jobs. There’s a flurry of new offices from Micron suppliers like Lam Research and cleanroom builder Exyte, plus contractors coming in for lucrative jobs helping to build Micron’s fabs.

With Boise, and an even bigger memory fab campus coming to Clay, New York, Micron’s long-term goal is to produce 40% of its DRAM in the U.S. It plans to spend $250 billion through 2035 to get there, with the help of up to $6.2 billion of CHIPS Act funds, which were granted under the Biden administration. 

Micron is part of the fabric of Boise’s economy, alongside other local legends like the Albertsons grocery chain and the potato empire of J.R. Simplot, who was one of Micron’s first investors.

Today, the memory maker is among Ada County’s leading employers, after Boise State and the region’s health system. 

“It’s always been something that we’ve been around, but of course recently, with Boise, Idaho being a very small market, it’s probably one of our largest success stories that we’ve ever had,” said JT Belnap, founder of Treasure Valley Financial Planning, which is now almost exclusively focused on managing Micron employees’ wealth. 

Belnap told CNBC that his firm’s phones are “continuing to ring” with requests from Micron employees who are close to retirement. 

Because of the stock appreciation, some are moving up their timelines to exit the workforce from three or four years to one or two, Belnap said. To take advantage of tax benefits, others are donating stock to charities. And plenty are taking some profit for a dream purchase, like one of Belnap’s clients who recently bought an $80,000 truck he’d always wanted. 

“What I’ve learned doing financial planning for as long as I have is when anyone comes into some real wealth that’s kind of a sudden thing, you need to allow them to have a little bit of fun,” Belnap said. 

About 9 miles east of Belnap’s office, a very different kind of business is noticing a similar trend. Lisa Zimowsky, owner of jewelry boutique The Diamond Girls, said her sales are up 60% for the year. 

“I do know of several people that have sold some stock and bought with us,” Zimowsky said. “Usually it’s the people that got a quarterly bonus when the stock was $150,” or less than one-sixth its current price. 

“The Boise economy is super strong,” Zimowsky added. “I think Micron’s been a big part of that.”

Then there’s the real estate market. 

Sheila Smith, an agent in the area, said she’s seen more prospective buyers and fewer listings for homes in the southeast part of the city, near Micron’s headquarters. Smith said there’s so much construction that some Micron contractors involved with the new fabs are purchasing homes.

“Typically if somebody knows they’re only going to be here temporarily, for an interim-type job, such as the engineers, they don’t look to buy,” Smith said in an interview. “They are coming here and they are buying.”

Mortgage broker Gerald Robinson said that over about a month-long stretch, he consulted with four Micron clients who were looking to buy homes. 

“We’re seeing a lot of stock options being executed right now, and people [are] purchasing,” said Robinson, CEO of 1st Choice Mortgage.

One of the two clients who ended up buying a house did so as an investment to run an Airbnb-style property, Robinson said. The other was a first-time homebuyer in her early 20s.

Micron told CNBC that stock offerings are a key part of the company’s strategy to recruit and retain talent. Through the first three quarters of this fiscal year, Micron had recorded $954 million in stock-based compensation, up more than 100% from three years ago. 

“We do lean into stock awards very heavily,” said April Arnzen, Micron’s chief people officer and an Idaho native who’s worked at the company for 27 years. “We want our team members to be owners in the company and share in the success of the company.”

It’s not just employees who have gotten in on the action. 

As a longtime part of the Boise tech community, Crawforth bought Micron shares when they traded around $16 each, and said he still owns north of 1,500 to this day. That’s a stake worth over $1.4 million. 

But the growth led to an accidental imbalance in the family. 

“I made a mistake – I bought some for my niece, but not for my nephew,” Crawforth said. “All of a sudden, my niece’s investment to help her put a down payment on a house when she’s old enough is significantly higher than my nephew.” 

Crawforth said he’s got a “moral dilemma” as he figures out “how to rectify that situation.”

His partner also bought, but at a higher price, and was able to pay off a portion of car debt after recently cashing in her position at around $1,200 a share.

With so much new wealth and with demand rising for homes, concerns are spreading that Boise is becoming unaffordable for those not directly boosted by the Micron effect. Median home sale prices in Boise are up 2.9% over the past year as of June, compared to a 1.2% average increase nationwide, according to Redfin. 

“Now we’re just seeing the lower incomes maybe getting a little bit more and more priced out, because wages may not be keeping up with home prices,” Robinson said. 

Ada County has swelled by around 19% since 2020, adding close to 95,000 people, according to estimates from Compass Idaho. Statewide, Idaho’s growth is the fastest in the nation over a similar period. People have flocked there from California, Washington and Oregon, taking advantage of Boise’s lower cost of living, relatively mild winters, and lively outdoor scene. 

The demographics are noticeably changing, Zimowsky said. 

“Five years ago, nobody had a designer purse here, nobody cared, nobody even knew what Louis Vuitton was,” she said. “Now everybody’s carrying them.”

For food lovers and concert goers, Boise’s growth has taken the city up a notch. Boise State’s Albertsons Stadium, home to the iconic blue turf, hosted performances from Post Malone and Jelly Roll last year, while Jason Aldean and the Alabama Shakes came through town more recently. 

“The amenities here have changed a lot,” said Clark Krause, executive director of the Boise Valley Economic Partnership. As the city’s grown, residents now have “access to things that someone living in a city would enjoy.”

Long before he became the first Idaho chef to win a James Beard award, Kris Komori decided Boise was where he wanted to raise his growing family. When he moved to Boise from Portland, Oregon, in 2013, there weren’t very many hotels and high-rise buildings dotting the landscape, and the dining scene was much quieter. 

“Everyone was like, ‘What are you going to do out in Idaho?'” said Komori, the co-owner and executive chef at KIN Boise, which is located downtown. Now, “you can’t go a block without there being some sort of construction going on.”

KIN Boise, where a seasonal prix fixe meal runs $130 per person, is one of the top dining destinations in town, and a hot spot for Micron employees, especially when they’re taking out clients, Komori said. 

“They just frequent us much more now,” Komori said. “That’s a compliment to us because they want to kind of show off Boise, and we’re on the list for that.”

Komori said that every month, more restaurants − small businesses and chains alike − are opening downtown, and he’s increasingly seeing more outside the city center. 

Petso, who moved to Boise in 1980 when the city had about one-third its current population, said he appreciates the vibrancy despite some of the drawbacks. 

“It’s so expensive to go out to dinner, but they’re all packed,” Petso said, of the restaurants. “You just walk downtown in Boise and just go, ‘This is amazing.'”

Micron is well aware of the pressure created by such rapid expansion, which will only intensify with the thousands of new people the company is still planning to hire. 

“When you’re scaling that many people in a short amount of time, there certainly are challenges such as transportation, such as housing,” Arnzen said. She added that the company has been partnering with the state and county and at the “local level on solutions to make sure we’re staying a step ahead.” 

Arnzen said the company has made commitments around housing and is looking at “a lot of different roadway investment opportunities.” The company also built a childcare center for employees in partnership with the YMCA, and is planning to spend $75 million on workforce, education and community development across the state over the next decade. 

Additionally, Micron has a chip camp for middle school students, a Micron-sponsored training fab at Boise State, and an apprenticeship program at the College of Western Idaho in nearby Nampa.

“There are at least five buildings with the Micron name on those two campuses,” Arnzen said. “Micron has been investing in those education institutions for years, and of course we’re not going to stop. We need more talent.”

Beyond the sprawl of cranes, bumper-to-bumper traffic on I-84 and Micron’s community initiatives, there’s growing concern about the sustainability of the memory boom. 

Crawforth got a taste of the risk when the stock unwound in July.

“That’s probably 600 grand for me personally in net worth that I’ve seen go away,” Crawforth said, speaking of last month’s stock drop. He was quick to note that over a three-month stretch it was up 50%, so “it’s still a win.” 

For Petso, the moment has clear parallels to the last time Micron millionaires were showing up at his office. It was the dot-com bubble of 1999, and tech mania was everywhere. Micron shares jumped more than 50% that year after almost doubling the year prior. 

Some of Petso’s clients refused to sell even a portion of their holdings. The stock lost three-quarters of its value over the next three years, a crash that Petso said left “deep scars” for everyone involved.

It was a painful lesson, and one that he’d rather not have his existing client base learn the hard way.

“Trying to get people to trim and get out is really the discussions we’re having now,” Petso said. “You guys are killing it out there, but I’ve been around a long time. You were killing it in 1999 too.”

WATCH: Exclusive look inside SK Hynix’s $720 billion AI memory expansion