Picture Wednesday evening. Nvidia actually had a decent day — the stock closed up almost 3%.[5] You close the app, make dinner, and figure the worst of the week is behind it.
Then you check again a little after 6 p.m. Down almost 9% in after-hours trading.[5]
Nothing about Nvidia's chips changed between lunch and dinner. What changed was a headline about one man.
How We Got Here
Quick catch-up, because this story moves fast. On Oct. 29, The New York Times reported that U.S. officials had concluded an executive close to Nvidia CEO Jensen Huang was a Chinese intelligence asset.[2] On Sunday, Huang told staff he had been "unfaithful" to his wife, and Nvidia said a committee of independent directors and outside counsel would investigate. The board also said it has "no reason to believe that either national security or NVIDIA secrets were compromised."[1]
The stock fell more than 4% on Monday and another 5.47% on Tuesday, and a class-action shareholder lawsuit was filed against Nvidia and Huang.[2]
Then came Wednesday. The Times reported an alleged second affair: Huang is accused of a separate relationship with a senior Nvidia executive who reports to him, according to five employees. Later that night, the Wall Street Journal reported the board was preparing to remove him.[4] To be clear: the alleged second affair is an accusation, not something Huang or Nvidia has confirmed, and the Journal's report is about what the board is weighing, not a decision.[4]
TL;DR — The chips are the same as they were Monday. The questions are about the man who runs the company.
Why One Person Can Move a Trillion-Dollar Stock
Wall Street has a name for this: key-person risk. It means a company leans so hard on one person that losing them could change the business.
Nvidia is about as clean an example as you'll find. Huang co-founded it in 1993, and a tech journalist told CNN this week that the company has no clear successor.[1] On Tuesday, Nvidia briefly dipped below $4 trillion in total value before closing back above it.[2]
Remember The Market as a Neighborhood? The house is the business, and the stock price is what the neighbors think it would sell for this afternoon. A scandal like this isn't a leaky roof or mold in the walls. It's finding out the architect who designed the house — and still runs the renovations — might be leaving, and nobody's sure who else has the blueprints. The house hasn't changed. What a buyer will pay for it might.
So investors aren't selling for no reason. And the honest answer to "what happens next" is that nobody knows yet.
The Odds Changed Overnight
On Tuesday, analyst Dan Ives of Yorkville Ives & Co. wrote that Street chatter gave Huang roughly a 15% chance of being removed as CEO, and that the board's investigation could take four to six weeks.[3]
That note is one day old and already out of date.
That's a lesson on its own. Wall Street's "odds" are a snapshot of the crowd's mood, not a forecast you can bank on. If you made a decision Tuesday because "85% he stays" sounded safe, the ground moved under you Wednesday night.[3]
Do You Sell? Ask This Instead
I can't tell you whether to buy, sell or hold Nvidia. I'm not a licensed advisor, and I don't know your situation. What I can give you is the question I'd ask, and it comes from my own mistakes.
When I wrote up the investments I got wrong, I ended with a checklist I wish I'd had. One item: am I selling because something changed, or because I'm bored? This week swaps "bored" for "scared," but the test is the same. Something did change. The question is whether it touches your reason for owning the stock.
What was your reason? If you own Nvidia because companies keep paying for its chips to build AI data centers, write that down. Then ask whether this week's news touches it. Nothing I've read this week says customers stopped buying the chips. But if it turns out chips were steered to buyers who shouldn't have them — which is what U.S. officials are worried about[2] — that's a business problem, not just a personal one.
Did you own the company or the CEO? If part of your reason was "Jensen will figure it out," then you own key-person risk whether you meant to or not. That's not wrong. But be honest that a piece of your thesis now sits in a boardroom you can't see into.
What would make you get out? Decide that while you're calm, not at 6 p.m. on a Wednesday staring at a red number. Maybe it's proof that chips ended up where they shouldn't. Maybe it's a CEO change with no real plan behind it. Whatever it is, write it down.
Peter Lynch's version is shorter: "Know what you own, and know why you own it."
My Dad's Nvidia
I have a personal reason to care about this one. At the height of the GPU shortage, I came home from Micro Center with the last Nvidia graphics card they had, and on the drive my dad said a company with that kind of demand ought to be doing pretty well for themselves. Hours later, he bought the stock. He's still holding it, and on a percentage basis it's the biggest winner of his investing career.
His reason was simple: people couldn't stop buying the product. That's the thing worth checking this week. Not the gossip, not the after-hours number. Whether people still can't stop buying the product.
Where This Could Be Wrong
Plenty could break the other way. If the investigations find that Nvidia chips reached buyers they shouldn't have, the fallout could hit chip sales and the business itself takes the damage. If Huang leaves suddenly with no successor ready, the company could drift even if demand holds. And if the alleged second affair doesn't hold up, a lot of people will have sold on noise.
I don't know which of those happens. Neither does anyone writing "NVDA to $X" headlines tonight.
Read the Business, Not the Tabloid
Stocks fall on headlines all the time. Your job isn't to beat everyone else to the sell button. It's to know your reason well enough to tell whether the headline touched it.
Scandals make great headlines. Your portfolio should make boring reading.
Your turn: have you ever owned a stock mostly because you believed in the person running it? How did that work out? Tell me in the comments.
Until next time — let's keep the stock market simplified.