SMCI Stock Cracks Premarket On Alleged Nvidia Chip Diversion To China; Super Micro, NVDA Stress Compliance

The U.S. has indicted three persons linked to Super Micro for diverting at least $510 million worth of advanced U.S. chips to Chinese customers in violation of export rules.
In this photo illustration, the Super Micro Computer, Inc. logo is seen displayed on a smartphone screen.
In this photo illustration, the Super Micro Computer, Inc. logo is seen displayed on a smartphone screen. (Photo Illustration by Thomas Fuller/SOPA Images/LightRocket via Getty Images)
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Yuvraj Malik·Stocktwits
Published Mar 20, 2026   |   4:12 AM EDT
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  • Super Micro shares dropped 20% in Friday’s premarket; Nvidia shares were flat.
  • Super Micro argued that it is not named in the indictment and that it continues to aid the U.S. investigation into the illegal exports.
  • Retail sentiment on Stocktwits for SMCI shifted to ‘neutral’ from ‘bearish’ on Friday.

Super Micro Computer, Inc. shares dropped 20% in early premarket trading on Friday, after the U.S. charged three people linked to the AI server company, including its co-founder, for conspiring to smuggle billions of dollars worth of servers to China in violation of export controls.

The accused – Yih-Shyan “Wally” Liaw, Ruei-Tsan “Steven” Chang and Ting-Wei “Willy” Sun – allegedly diverted at least $510 million worth of servers from an unnamed U.S. manufacturer, routing them through Taiwan, to Chinese buyers between April 2024 and mid-2025, according to a statement from the U.S. Justice Department.

Liaw co-founded Super ​Micro in 1993 and joined its board of directors in 2023. Chang was a sales manager at Super Micro's Taiwan office, while Sun was a contractor.

U.S. officials did not name the chips involved in the alleged scheme, but Nvidia dominates the AI chip market. Some of Nvidia’s most advanced chips are barred from sale to Chinese customers, while its China-compliant H200 chips are also not currently being sold amid a lack of clear regulatory approval from both Beijing and Washington.

The Defiance Daily Target 2X Long SMCI ETF (SMCX), which has an over 200% exposure to SMCI via derivatives, declined 37% in the premarket, and was among the top tickers discussed on Stocktwits.

Nvidia, SMCI Reiterate Compliance

In a response over the issue, Nvidia said it remains in “strict compliance” with export rules and chips exported and sold illegally in such a manner do not get service support.

"Strict compliance is a top priority for Nvidia. We continue to work closely with our customers and the government on compliance programs as export regulations have expanded.” Nvidia said in a statement to CNBC.

“Unlawful diversion of controlled U.S. computers to China is a losing proposition across the board – Nvidia does not provide any service or support for such systems, and the enforcement mechanisms are rigorous and effective.”

Super Micro also distanced itself from the controversy. “Supermicro is not named as a defendant in the indictment… Supermicro has placed the two employees on administrative leave and terminated its relationship with the contractor, effective immediately,” it said in a statement.

The company remains in full compliance with export rules and is cooperating fully with the government's investigation, it added, 

Retail Investors Debate, Stocktwits View ‘Neutral’ 

The development sparked a debate among retail traders on Stocktwits, with some heighting concerns over potential delisting of SMCI and long-term regulatory fallout and others arguing limited impact, even as the retail sentiment shifted to ‘neutral’ from ‘bearish.’

“$SMCI we’re definitely going to see more red. But on the bright side, everyone, including china, knows the (Nvidia) racks are fire and willing to do hoodrat s*** to get their hands on them,” said a user.

Another said that Supermicro is a strong company, “which unfortunately appears to have been under the influence of questionable individuals,” and the stock move would be based on “how smart money, market makers, and bondholders interpret this.”

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