Key Points
Dow Jones hit record 50,644.28 on May 26, up 0.36%.
S&P 500 and Nasdaq both closed at records, up 0.02% and 0.07% respectively.
Oil fell 5.55% to $88.68 on Iran peace deal hopes.
Micron surged 19% to $1 trillion market cap on UBS upgrade to $1,625.
The Dow Jones Industrial Average, S&P 500, and Nasdaq Composite all closed at record highs this week as investors grew optimistic about a potential US-Iran peace deal. Oil prices fell sharply on hopes the deal would reopen the Strait of Hormuz. Micron Technology jumped 19% to become the latest company to cross $1 trillion in market value, driven by strong AI chip demand and analyst upgrades.
All Three Indexes Reach Record Closes
The Dow Jones gained 182.60 points, or 0.36%, to close at a record 50,644.28 on May 26. The S&P 500 ticked up 0.02% to 7,520.36, also a record close. The Nasdaq Composite edged up 0.07% to 26,674.73. On May 25, the S&P 500 had gained 0.61% to 7,519.12 and the Nasdaq rose 1.19% to 26,656.18, both hitting fresh intraday highs. The Dow fell 118.02 points, or 0.23%, to 50,461.68 on that day as investors rotated out of tech stocks.
Oil Prices Drop on Peace Deal Optimism
US crude oil fell 5.55% to settle at $88.68 per barrel on May 26 after Iranian state media said the country would restore commercial traffic through the Strait of Hormuz to pre-war levels within one month. Brent crude initially dropped 4.8% but recovered to a 3.1% loss, trading above $93.50 per barrel. The White House later denied the Iranian report as a “complete fabrication.” Lower oil prices supported energy-sensitive stocks, particularly benefiting the Dow’s financial and industrial sectors.
Micron Joins the $1 Trillion Club
Micron Technology surged 19% on May 25 to top $1 trillion in market capitalization for the first time. UBS raised its price target to $1,625 from $535, citing more than 100% upside from long-term AI chip agreements. On May 26, Micron closed 3.6% higher as the broader chip sector took a breather. Fellow memory stocks Seagate and Western Digital gained 4% and 8% respectively on May 25. The Roundhill Memory ETF added 14% to hit a fresh record high.
Chip Sector Momentum Slows
While Micron held gains, other semiconductor stocks lost steam. Intel and Qualcomm fell 1% and 6% respectively on May 26 after rising 3% and 4% the day before. Analysts noted that current chip valuations have become extremely frothy ahead of themselves, even as AI demand remains strong. Meyka rates the S&P 500 a C+ with a 12-month target of $7,250.83, suggesting limited upside from current levels.
Final Thoughts
US stock indexes hit record closes this week on Iran peace hopes and falling oil prices. With Meyka rating the S&P 500 a C+ and forecasting $7,250.83 in 12 months, current valuations leave little room for gains.
FAQs
Oil prices fell on Iran peace deal hopes, boosting the Dow’s financial and industrial holdings. Tech stocks, which represent 35% of the S&P 500, underperformed despite Micron’s gains.
UBS raised its price target to $1,625 from $535, citing strong AI-driven demand for memory chips and Micron’s long-term supply agreements.
No. The White House denied the Iranian report as false, sending WTI crude back up to $88.68, down 5.55% after initially falling 6%.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
What brings you to Meyka?
Pick what interests you most and we will get you started.
I'm here to read news
Find more articles like this one
I'm here to research stocks
Ask Meyka Analyst about any stock
I'm here to track my Portfolio
Get daily updates and alerts (coming March 2026)