Here's your afternoon. T&B Tech Minute for Thursday, November 20th. I'm Julie Chang for the Wall Street Journal.

The stock market rebound was short-lived. The gains this morning from NVIDIA's strong results yesterday

turned lower in the afternoon. Many investors still worry the high valuations of AI companies

and their aggressive spending plans could mark signs of a

bubble. The NASDAG composite led declines after being up on the day more than 2%. Invita gave up an

even bigger early gain and was recently down more than 2% on the day. Meanwhile, Bitcoin slid below

$87,000 as traders continue to wrestle with macroeconomic uncertainty.

The largest cryptocurrency is down more than 30% from its October 6th peak of $126,000.

Bitcoin is on pace for its worst monthly performance since June 2022,

when the collapse of Crypt lender Celsius network dragged down

the broader market. That's according to Dow Jones market data, so-called crypto treasury stocks,

which sell shares in debt to buy Bitcoin and other cryptocurrencies are also under pressure.

And most businesses in Canada are at least tinkering with generative AI, but appear to have

little to show for it so far. According to research by KPMG, 93% of business leaders surveyed

say the organization is using AI, up from 61% last year. Still, most are in partial or experimental

adoption. Only 31% have fully integrated

generative AI across core operations. And KPMG says only 2% report seeing a return on investment,

with many unable to describe what those returns are. For a deeper dive into what's happening

in tech, check out tomorrow's Tech News Briefing podcast.