Today's biggest winners and losers in the stock market, a look at the notable movers:

On this episode of Stock Movers:
- Credit rating firm S&P Global Ratings downgraded Oracle (ORCL) to the lowest investment-grade rating, citing the tech company’s growing spending on artificial intelligence. S&P said Oracle’s AI business needs significant upfront investment and long-term data center leases, and expects Oracle’s operations to burn through $42 billion of cash in fiscal 2027.

- SK Hynix American depositary receipts jumped 15% above their offering price, after the South Korean memory chipmaker raised $26.5 billion in the largest-ever US listing by a foreign company. The ADRs trade at $171.41 each at 1:44 p.m. on Friday in New York, versus an offering price of $149 apiece. The successful mega-listing brushed aside concern over recent volatility among chipmakers, demonstrating investors have plenty of appetite for direct exposure to SK Hynix’s dominant position in high-bandwidth memory.

-Meta (META) is outperforming Magnificent 7 stocks on Friday after research firm SemiAnalysis posted a positive report on the social media giant’s AI compute business.