Charles Liang, CEO of Super Micro Computer, during the AMD Advancing AI event in San Jose, California, on Dec. 6, 2023.
David Paul Morris | Bloomberg | Getty Images
In March, Super Micro Computer was added to the S&P 500 after an epic run that lifted the stock by more than 2,000% in two years, dwarfing even Nvidia’s gains.
As it turned out, S&P was calling the top.
Less than two weeks after the index changes were announced, Super Micro reached its closing high of $118.81 and had a market cap of almost $70 billion. The stock is down 72% since then, pushing the valuation to under $20 billion, the first major sign in the public markets that the hype around artificial intelligence may not all be justified.
Super Micro is one of the primary vendors for building out Nvidia-based clusters of servers for training and deploying AI models.
The stock plunged 33% on Wednesday, after the company disclosed that its auditor, Ernst & Young, had resigned, saying it was “unwilling to be associated with the financial statements prepared by management.” Super Micro is now at risk of being delisted from the Nasdaq, and has until Nov. 16 to regain compliance with the stock exchange.
“We see higher delisting risk in the absence of an auditor and the potential challenge to getting a new one,” analysts at Mizuho, who have the equivalent of a hold rating on the stock, wrote in a report on Wednesday.
Ernst & Young was new to the job, having just replaced Deloitte & Touche as Super Micro’s accounting firm in March 2023.
A Super Micro spokesperson told CNBC in a statement that the company “disagrees with E&Y’s decision to resign, and we are working diligently to select new auditors.”
Representatives for Ernst & Young and Deloitte didn’t respond to requests for comment.
Super Micro vs. Nvidia
For much of Super Micro’s three decades in business, the company existed well below the radar, plodding along as a relatively obscure Silicon Valley data center company.
That all changed in late 2022 after OpenAI’s launch of ChatGPT set off a historic wave of investment in AI processors, largely supplied by Nvidia. Along with Dell, Super Micro has been among the big tangential winners in the Nvidia boom, packaging up the powerful graphics processing units (GPUs) inside customized servers.
Super Micro’s revenue has at least doubled in each of the prior three quarters, though the company hasn’t filed official financial disclosures with the SEC since May.
Wall Street’s mood on the company has shifted dramatically.
Since the S&P’s announced index changes in March, Super Micro’s stock has dropped at least 10% on six separate occasions. The most concerning slide, prior to Wednesday, came on Aug. 28, when the shares sank 19% after Super Micro said it wouldn’t file its annual report with the SEC on time.
“Additional time is needed for SMCI’s management to complete its assessment of the design and operating effectiveness of its internal controls over financial reporting as of June 30, 2024,” the company said.
Noted short seller Hindenburg Research then disclosed a short position in the company, and said in a report that it identified “fresh evidence of accounting manipulation.”
‘Clock ticking’
The following month, Super Micro said it had received a notification from Nasdaq, indicating that the delay in the filing of its annual report meant the company wasn’t in compliance with the exchange’s listing rules. Super Micro said 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.
It wouldn’t be the first for Super Micro. The company was previously delisted by the Nasdaq in 2018.
Wedbush analysts see reason for worry.
“With SMCI having missed the deadline to file its 10K and the clock ticking for SMCI to remedy this issue, we see this development as a significant hurdle standing in the way of SMCI’s path to filing in time to avoid delisting,” the analysts, who recommend holding the stock, wrote in a report.
As Super Micro’s stock was in the midst of its steepest selloff since 2018 on Wednesday, the company put out a press release announcing that it would “provide a first quarter fiscal 2025 business update” on Tuesday, Nov. 5.
That’s Election Day in the U.S.
Super Micro’s spokesperson told CNBC that the company doesn’t expect matters raised by Ernst & Young to “result in any restatements of its quarterly financial results for the fiscal year ended June 30, 2004, or for prior fiscal years.”
Beyond Super Micro, the evolving incident is a potential black eye for S&P Dow Jones. Since Super Micro replaced Whirlpool in the S&P 500, shares of the home appliance company are down about 3%, underperforming the broader market but holding up much better than the stock that took its place.
Inclusion in the S&P 500 often causes a stock to rise, because money managers tracking the index have to buy shares to reflect the changes. That means pension and retirement funds have more exposure to the index’s members. Super Micro shot up 19% on March 4, the first trading day after the announcement.
A spokesperson for S&P Global said the company doesn’t comment on individual constituents or index changes, and pointed to its methodology document for general rules. The primary requirements for inclusion are positive GAAP earnings over the four latest quarters and a market cap of at least $18 billion.
S&P is able to make unscheduled changes to its indexes at any time “in response to corporate actions and market developments.”
Kevin Barry, chief investment officer at Cantata Wealth, says greater consideration should be given to a stock’s volatility when additions are made to such a heavily tracked index, especially given that tech already accounts for about 30% of its weighting.
“The chances of a stock going up 10 or 20 times in a year or two and then having an indigestion moment is extremely high,” said Barry, who co-founded Cantata this year. “You’re moving out of a low volatility stock into a higher volatility stock, when tech already represents the largest sector by far in the index.”
— CNBC’s Rohan Goswami and Kif Leswing contributed to this report
Federal Reserve Chair Jerome Powell reacts while speaking during a press conference following the Federal Open Markets Committee meeting at the Federal Reserve on Dec. 10, 2025 in Washington, DC.
Chip Somodevilla | Getty Images
It ended up being a “hawkish cut,” as expected. Still, investors managed to find a few gifts tucked betweenthe lumps of coal.
Even though the U.S. Federal Reserve lowered interest rates on Wednesday stateside, two regional bank presidents — Jeffrey Schmid of Kansas City and Austan Goolsbee of Chicago — wanted rates to stand pat.
Their cautioned was echoed in the Fed’s “dot plot” of rate projection, which showed officials penciling in just one cut in 2026 and another for 2027.
Even the Fed’s rate statement was repurposed from the December 2024 meeting, which ushered in a nine-month period without cuts until September this year.
Why, then, did U.S. markets rise after the meeting?
The biggest surprise was the Fed’s announcement that it would begin purchasing $40 billion in Treasury bills, starting Friday. That move increases the money supply in the economy. In other words, it’s a stealthy way to ease conditions, which helps support financial markets.
Next, Chair Jerome Powell dismissed speculation about future hikes.
“I don’t think that a rate hike … is anybody’s base case at this point,” Powell said. “I’m not hearing that.”
Fed officials also see the U.S economy as remaining resilient. Collectively, they increased their forecast for economic expansion in 2026 to 2.3% from an earlier estimate of 1.8% in September.
“We have an extraordinary economy,” said Powell.
And the markets may be setting up for an extraordinary finish to the year.
“The last interest rate decision of 2025 has essentially paved the way for a Santa Claus rally to end the year, and the S&P 500 is poised to exceed the 7,000 milestone in the next few weeks,” said José Torres, senior economist at Interactive Brokers.
For investors, that would count as a very decent Christmas surprise.
— CNBC’s Jeff Cox contributed to this report.
What you need to know today
And finally…
U.S. President Donald Trump delivers remarks on the U.S. economy and affordability at the Mount Airy Casino Resort in Mount Pocono, Pennsylvania, U.S. Dec. 9, 2025.
U.S. President Donald Trump has once again provoked outrage among his European allies, describing them as “weak” in an interview with Politico published Tuesday. Criticizing the region’s response to the war in Ukraine, Trump said: “I think they don’t know what to do.”
That comment will be jarring for Europe after its efforts to support Ukraine — efforts which Trump has frequently downplayed. Instead, Europe has had to watch on as U.S. officials have held talks with their Russian and Ukrainian counterparts on a draft peace plan for Ukraine, without a seat at the table.
A newly proposed exchange-traded fund would offer exposure to bitcoin, much like other popular ETFs tracking the world’s oldest cryptocurrency. But, there’s a twist: The fund would trade bitcoin-linked assets while Wall Street sleeps.
The Nicholas Bitcoin and Treasuries AfterDark ETF aims to purchase bitcoin-linked financial instruments after the U.S. financial markets close, and exit those positions shortly after the U.S. market re-opens each day, according to a December 9 filing to the Securities and Exchange Commission.
The fund would not hold bitcoin directly. Instead, the AfterDark ETF would use at least 80% of the value of its assets to trade bitcoin futures contracts, bitcoin exchange-traded products and ETFs, and options on those ETFs and ETPs.
The offering would capitalize on bitcoin’s outsized gains in off-hours trading.
Hypothetically, an investor who had been buying shares of the iShares Bitcoin Trust ETF (IBIT) when U.S. markets formally close, and selling them at the next day’s open, would have scored a 222% gain since January 2024, data from wealth manager Bespoke Investment Group shows. But an investor that had bought IBIT shares at the open and sold them at the close would have lost 40.5% in the same time.
Bitcoin was last trading at $92,320, down nearly 1% on the day. The leading cryptocurrency is down about 12% over the past month and little changed since the beginning of the year.
The proposed ETF underscores jockeying among sponsors to launch ETFs tracking all kinds of cryptocurrencies, from altcoins like Aptos and Sui to memecoins such as Bonk and Dogecoin. The contest has only accelerated under President Donald Trump, who has pushed the SEC and Commodity Futures Trading Commission to soften their stances on token issuers and digital asset exchanges.
Since being approved under the prior administration in January 2024, more than 30 bitcoin ETFs have begun trading in the U.S., according to data from ETF.com.
Chuck Robbins, chief executive officer of Cisco, participates in a Bloomberg interview at the World Economic Forum in Davos, Switzerland, on Jan. 17, 2024.
Stefan Wermuth | Bloomberg | Getty Images
Few companies were as hot in early 2000 as Cisco, whose networking equipment served as the backbone of the internet boom.
On Wednesday, Cisco’s stock surpassed its dot-com peak for the first time. The shares rose almost 1% to $80.25, topping their prior split-adjusted record or $80.06 reached on March 27, 2000. That’s the same day that Cisco passed Microsoft to become the most valuable publicly traded company in the world.
Back then, investors saw Cisco as a way to bet on the growth of the web, as companies that wanted to get online relied upon the hardware maker’s switches and routers. But following a half-decade boom, the dot-com bubble burst just after Cisco reached its zenith, a collapse that wiped out more than three-quarters of the Nasdaq’s value by October 2002.
While the market swoon eliminated scores of internet highflyers, Cisco survived the upheaval. Eventually it started to grow and expand, diversifying through a series of acquisitions like set-top box maker Scientific- Atlanta in 2006, followed by software companies including Webex, AppDynamics, Duo and Splunk.
With its gains on Wednesday, Cisco’s market cap sits at $317 billion, making it only the 13th most valuable U.S. tech company. In recent years, the stock has badly trailed tech’s megacaps, which have been at the center of the new boom surrounding artificial intelligence.
The AI market has reached a level of euphoria that many analysts have compared to the dot-com era. Instead of Cisco, the modern infrastructure winner is Nvidia, whose AI chips are at the heart of model development and are relied up by the other major tech companies that are all building out AI-focused data centers. Nvidia has a market cap of $4.5 trillion, roughly 14 times Cisco’s current value.
But Cisco is angling to benefit from the AI craze, with CEO Chuck Robbins in November touting $1.3 billion in quarterly AI infrastructure orders from large web companies. Total revenue approached $15 billion, which was up 7.5% year over year, compared with 66% growth in 2000.
Shares of Cisco are up about 36% so far in 2025, outperforming the Nasdaq, which has gained about 22% over the same period.