Doug Krizner

Today, the S&P 500 software and services sub-index fell by more than 4.5%.

After the bell, Amazon's first quarter outlook was below consensus, and the company said it intends to spend $200 billion this year on data centers, chips, and other equipment.

Now, the market is suspecting that Amazon's massive bet on AI will take longer to pay off than anticipated.

Here is Bloomberg analyst Poonam Goyal.

That is Bloomberg analyst Poonam Goyal.

Shares in Amazon were down 10 percent in late U.S.

trading.

At the same time, there was a sell-off today in Bitcoin.

It tumbled below 64,000 as an unwinding of leveraged bets deepened.

Bitcoin lost more than 12% during New York trading, and Nobel laureate Paul Krugman says Bitcoin is facing a real crisis of faith.

That is Nobel laureate Paul Krugman speaking on Bloomberg Businessweek Daily.

Bitcoin has wiped out all of its gains since President Trump's election set off a speculative rush into cryptocurrencies.

Now, Bitcoin's plunge has rocked the digital asset complex, and few companies are more exposed than the Bitcoin treasury company Strategy Inc.

Today, after the bell, the company confirmed a net loss of $12.4 billion for the fourth quarter.

Shares in Strategy Inc.

were down by more than 2% in late U.S.

trading, but these shares have lost 45% of their value so far this year.

Rio Tinto Group is walking away from talks to acquire Glencore.

Such a deal would have created the world's largest mining company.

However, the two sides failed to agree on valuation.