Super Micro investors continued to rush the exits on Friday, pushing the stock down another 9% and bringing this week’s selloff to 44%, after the data center company lost its second auditor in less than two years.

The company’s shares fell as low as $26.23, wiping out all of the gains for 2024. Shares had peaked at $118.81 in March, at which point they were up more than fourfold for the year. Earlier that month, S&P Dow Jones added the stock to the S&P 500, and Wall Street was rallying around the company’s growth, driven by sales of servers packed with Nvidia’s artificial intelligence processors.

Super Micro’s spectacular collapse since March has wiped out roughly $55 billion in market cap and left the company at risk of being delisted from the Nasdaq. On Wednesday, as the stock was in the midst of its second-worst day ever, Super Micro said it will provide a “business update” regarding its latest quarter on Tuesday, which is Election Day in the U.S.

The company’s recent challenges date back to August, when Super Micro said it would not file its annual report on time with the SEC. Noted short seller Hindenburg Research then disclosed a short position in the company and wrote in a report that it identified “fresh evidence of accounting manipulation.” The Wall Street Journal later reported that the Department of Justice was in the early stages of a probe into the company.

Super Micro disclosed on Wednesday that Ernst & Young had resigned as its accounting firm just 17 months after taking over from Deloitte & Touche. The auditor said it was “unwilling to be associated with the financial statements prepared by management.”

A Super Micro spokesperson told CNBC that the company “disagrees with E&Y’s decision to resign, and we are working diligently to select new auditors.” Super Micro does not expect matters raised by Ernst & Young to “result in any restatements of its quarterly financial results for the fiscal year ended June 30, 2024, or for prior fiscal years,” the representative said.

Analysts at Argus Research on Thursday downgraded the stock in the intermediate term to a hold, citing the Hindenburg note, reports of the Justice Department investigation and the departure of Super Micro’s accounting firm, which the analysts called a “serious matter.” Argus’ fears go beyond accounting irregularities, with the firm suggesting that the company may be doing business with problematic entities.

“The DoJ’s concerns, in our view, may be mainly about related-party transactions and about SMCI products ending up in the hands of sanctioned Russian companies,” the analysts wrote.

In September, the month after announcing its filing delay, Super Micro said it had received a notification from the Nasdaq indicating that its late status meant the company wasn’t in compliance with the exchange’s listing rules. Super Micro said the Nasdaq’s rules allowed the company 60 days to file its report or submit a plan to regain compliance. Based on that timeframe, the deadline would be mid-November.

Though Super Micro hasn’t filed financials with the SEC since May, the company said in an August earnings presentation that revenue more than doubled for a third straight quarter. Analysts expect that, for the fiscal first quarter ended September, revenue jumped more than 200% to $6.45 billion, according to LSEG. That’s up from $2.1 billion a year earlier and $1.9 billion in the same fiscal quarter of 2023.

WATCH: I don’t know if Super Micro is guilty or innocent, says Jim Cramer

Amazon shares jumped 7% on Friday and neared an all-time high after the company reported better-than-expected earnings, driven by growth in its cloud computing and advertising businesses.

The stock is up about 32% for the year and touched $200.50 on Friday. Its highest close was $200, a mark the stock hit twice in July.

Revenue increased 11% in the quarter to $158.9 billion, topping the $157.2 billion estimate of analysts surveyed by LSEG. Earnings of $1.43 topped the average analyst estimate of $1.14.

Sales in the Amazon Web Services cloud business increased 19% to $27.4 billion, coming in just shy of analysts’ estimates, according to StreetAccount. That was an acceleration from 12% a year ago, but trailed growth at rivals Microsoft and Google, where cloud revenue increased 33% and 35%, respectively. Microsoft’s Azure number includes other cloud services.

Amazon’s capital expenditures surged 81% year over year to $22.62 billion, as the company continues to invest in data centers and equipment such as Nvidia processors to power artificial intelligence products. Amazon has launched several AI products in its cloud and e-commerce businesses, and it is also expected to announce a new version of its Alexa voice assistant powered by generative AI.

“Amazon has integrated AI into what is the most diverse tech footprint of any mega cap, with multi-billion revenue streams in e-commerce, advertising, subscriptions, online video, and cloud,” analysts at Roth MKM wrote in a note after the earnings report. They have a buy rating on the stock.

Brian Olsavsky, Amazon’s chief financial officer, said on the earnings call that the majority of the company’s 2024 capex spending is to support the growing need for technology infrastructure.

CEO Andy Jassy said the company plans to spend about $75 billion on capex in 2024 and that he suspects the company will spend more next year.

“The increased bumps here are really driven by generative AI,” Jassy said on the call. “It is a really unusually large, maybe once-in-a-lifetime type of opportunity,” he said, noting that shareholders “will feel good about this long term that we’re aggressively pursuing it.”

Advertising was another bright spot. Sales in the unit expanded 19% to $14.3 billion during the quarter, meeting expectations and outpacing growth in Amazon’s core retail business.

Amazon’s ad growth was about in line with Meta, which saw 18.7% expansion, and faster than growth at Google, which reported a 15% increase in ad revenue. Snap‘s sales also jumped 15% from a year earlier.

Amazon forecast revenue in the current quarter to be between $181.5 billion and $188.5 billion, which would represent growth of 7% to 11% year over year. The midpoint of that range, $185 billion, fell short of the average analyst estimate of $186.2 billion, according to LSEG.

— CNBC’s Ari Levy contributed to this report.

Alphabet executives, donning Halloween costumes, faced questions from concerned employees at an all-hands meeting on Wednesday, following comments on the company’s earnings call suggesting that more cost cuts are coming.

“There is a reality to it,” said Brian Ong, vice president of Google recruiting, according to a recording of the meeting reviewed by CNBC. “We are hiring less than we did a couple of years ago.”

Ong, who was specifically responding to a question about retention and promotion opportunities, added that fewer positions are open and geographic hiring has changed, “so you may see fewer roles available where you are.”

A Google spokesperson declined to comment.

The meeting came after Alphabet reported better-than-expected third-quarter earnings and revenue Tuesday, sparking a rally in the stock. On a call with investors, CFO Anat Ashkenazi, who recently succeeded Ruth Porat, proclaimed she wanted to “push a little further” with cost savings across the company.

Google’s chief scientist, Jeff Dean, wore a starfish costume to the meeting, while Ashkenazi sported a jersey of former Indiana Pacers star Reggie Miller. CEO Sundar Pichai wore a black t-shirt that read “ERROR 404 COSTUME NOT FOUND” with an image of a pixelated dinosaur.

Ashkenazi said one of her key priorities in the new role would be to make more cuts as Google expands its spending on artificial intelligence infrastructure in 2025.

It’s a theme that began in 2023, when the economy and market turned, and has continued since. Google has been restructuring its workforce to move more quickly in the AI arms race, where it faces increased competition. That’s included layoffs, organizational shake-ups, and has led to workers feeling a “decline in morale,” as CNBC previously reported.

Over the last couple of months, Google has made cuts to its marketing, cloud and security teams in Silicon Valley, as well as in its trust and safety unit.

Google is far from alone. Dropbox this week announced it will lay off 20% of its global workforce, while Amazon continues shuttering various projects. Within Google, employees have expressed concern that the company is preparing for more layoffs, possibly after the end of the year, according to internal correspondence viewed by CNBC.

Pichai joked that the quarterly call was perfect preparation for Ashkenazi ahead of the company meeting.

“I was telling Anat yesterday, earnings calls are a piece of cake compared to TGIF the next day,” Pichai said, to laughs from attendees.

Some employee comments and questions included praise for “another great quarter,” success in chip advancements and improvements in Google’s hit AI note-taking tool NotebookLM. However, other questions expressed fear of what greater cost efficiencies would mean for the workforce.

“What exactly was meant by the comments on further efficiencies in headcount”? one question asked, pointing to Ashkenazi’s comments from the call.

Ashkenazi didn’t share any more details but said employees are “one of the most important assets we have.” She said that the company is investing in people and that it hired 1,000 new graduates in the third quarter.

“Core” refers to the teams that build the technical foundation underlying Google’s flagship products. In May, CNBC reported that Google laid off more than 200 employees from its Core engineering teams, in a reorganization that included rehiring some roles in India and Mexico.

Pichai followed up by saying, “In this transition moment, across all functions, everywhere in the company, it’s worth challenging us to think where we can use AI to be more productive.”

He added that through 2025, the workforce should “strive to do more” and “help customers around the world take those learnings as well.”