All right, let's do it. Welcome to closing bell. I'm Scott Wobner live from Post 9 here at the New York Stock Exchange.

This make-a-breakout begins with what else. One of the worst days on record for shares of

Nvidia looks to be the largest ever single-day market cap loss for that stock. We will follow it into

the close. Hammer today on fears about AI competition and cost, both issues, sending shares of many tech companies sharply

lower today.

Coming up, top chip analyst, Stacey Raskon, on what all of it means for your investments.

In the meantime, take a look at the majors here with 60 to go in regulation.

NASDAQ, obviously where the action is today.

Many of the mega caps are lower. It's down more than three and a half

percent is the NASDA. It's worth noting, by the way, that meta and Apple are higher, and we'll

tell you why that might be coming up in just a bit. AI power plays, they're all lower as well

as are other software stocks tied to the space. So it is a dramatic and widespread sell-off.

If it's AI, it is largely lower today. Fundstratt's Tom Lee will be here in just a bit with his

view on the markets and where they might head from here as well. He'll try and put some of this

into context, too. It does take us to our talk of the tape, the deep sink today in AI stocks. And whether this is,

in fact, a watershed moment for investing in that space. Let's start with our own dear Jibosa.

She's been out front on this story from the get-go. Why are we seeing what we are seeing, Dee?

Because the whole story, the whole narrative has changed and it happened so quickly.

I mean, you could argue that it went back earlier than DeepSeek, but really over the last

few months, there's been this acceptance in the AI world that we sort of scaling lots,

we hit a wall in terms of data and we went from the pre-training phase to the inference phase

and that's what allowed something

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