Francesca Fontana

And now you know what's news in markets this week.

You can read about more stocks that moved on the week's news in The Score, my column in the Wall Street Journal's Exchange section.

Today's show was produced by Michael LaValle with supervising producer Jana Herron.

I'm Francesca Fontana.

Have a great weekend and see you next Saturday.

Hey, listeners, it's Saturday, December 20th.

I'm Francesca Fontana for The Wall Street Journal, and this is What's News in Markets, our look at the biggest stock moves of the week and the news that drove them.

Let's get to it.

It wouldn't be the holiday season for the stock market without traders hoping for positive momentum to spark a Santa Claus rally.

During the week, our last full trading week before Christmas, stocks were trying for fresh records, with some fresh optimism fueling a rally Thursday after an encouraging inflation readout.

An end-of-year rally would be a welcome gift to the market, given how a cloudy economic picture and persistent AI-related jitters have been weighing on stocks.

On a weekly basis, the major indexes ended mixed.

The Dow lost 0.7%, while the S&P 500 edged 0.1% higher, and the Nasdaq rose 0.5%.

Speaking of AI jitters, let's look at Micron, the memory chip maker whose latest earnings report brought some good news to the semiconductor sector.

So late Wednesday, Micron posted a jump in quarterly revenue and raised its outlook, with investors cheering the results and the trend underpinning the results.

There's a shortage of memory chips, thanks to the AI boom, and it doesn't look like it's ending anytime soon.

Demand for artificial intelligence has developers scrambling to buy enough of these essential chips, driving up price tags and giving sales a boost for companies like Micron.

And so Micron shares surged 10.2% Thursday, notching a weekly gain of 10.3%.

Next up, we've had two dramatic corporate sagas to keep up with on this podcast and the corresponding moves in the involved parties' share prices.

So I'll give you some quick hits on Warner Brothers Discovery and Lululemon Athletica.