A 9% selloff in Apple stock hasn't done much to slow down the Nasdaq today.

Apple was recently down about $470 billion in market capitalization, on pace for its largest one-day market cap decline on record and the second-largest of any U.S. company. If it holds, the decline will be Apple's biggest since 2020.

But the Nasdaq composite is up more than 0.5%, with Apple's decline offset a 15% rise in Amazon.com stock following its report of accelerating cloud-computing sales. That rally put the cloud provider and retailer on pace for its largest market-cap gain ever.

The sharp moves at the two giants pulled indexes in opposite directions. The S&P 500's tech sector, which contains Apple, is down about 1% today, while Amazon's sector, consumer discretionary, is surging 6%. (The tech sector's 15% gain for the year is still way in front of consumer stocks and broader benchmarks.)

Friday's moves come at the end of a turbulent week in which AI concerns, the Iran war, the Federal Reserve and losses at a highflying AI-focused hedge fund whipsawed markets.

Treasury yields are extending recent gains after two Federal Reserve officials explained why they cast dissenting votes in favor of raising interest rate this week. The yield on the 10-year U.S. Treasury note reached 4.737% in recent trading, according to Tradeweb, its highest intraday level since January 2025.

Premarket trading Friday began with relief after AI-focused investment firm Situational Awareness finished selling the bulk of its holdings, some investors said.

In South Korea, the Kospi index jumped 18%. The volatile benchmark had plunged in recent weeks after rapid gains earlier this year fueled by a frenzy in AI-related stocks.