Top U.S. Stories

  • The Dow Jones and S&P 500 both closed at record highs on Tuesday, August 4, with the S&P 500 up 1.8% to roughly 7,737 and the Dow gaining around 907 points to about 54,086. Why it matters: the rally shows investors are pricing in a genuine de-escalation in the Middle East, not just a temporary relief bounce.
  • WTI crude fell more than 6% to $75.32 a barrel on hopes that shipping through the Strait of Hormuz could resume more normally soon, though talks had not reached a final agreement and a vessel reported being struck in the strait (AP). Why it matters: cheaper oil eases inflation pressure and reduces the odds the Fed needs to act on rates.
  • Palantir’s strong earnings outlook reassured investors about the durability of AI infrastructure demand, with AMD’s results also drawing attention. Why it matters: AI spending has been a key pillar of this year’s market gains, so continued strong guidance matters for the broader rally’s staying power.
  • Philadelphia Fed President Anna Paulson said she believes the current benchmark rate range of 3.5%-3.75% is sufficient to keep inflation moving toward target.
  • Primary elections were held in several states including Michigan, where a closely watched Democratic House race pits an establishment incumbent against a progressive challenger.
  • In Japan, Sony Semiconductor Manufacturing began a phased restart of production at its Kumamoto Technology Center on August 4, a week after a magnitude-7 earthquake struck the region on July 28. Renesas and TSMC’s Japan unit JASM are also resuming output there.

Markets

Equity markets extended gains as easing Middle East tensions and solid AI-sector earnings offset lingering inflation concerns. Oil’s sharp drop is doing double duty — lowering input costs for businesses and reducing the urgency for further Fed tightening. The dollar remains capped against the yen after Japan’s coordinated yen-buying intervention in late July pulled USD/JPY down from the 163 range to around 157.

Stocks in Focus

Semiconductor names tied to Kumamoto — Sony Semiconductor, Renesas, and TSMC’s JASM — are in focus as they detail earthquake-recovery timelines. AI infrastructure names, led by Palantir, remain a market bellwether ahead of AMD’s results. Not investment advice — this is informational context, not a buy or sell recommendation.

Compass Insight

Today’s throughline: preparation paid off. Kumamoto’s chipmakers, drawing on lessons from the 2016 quake, are back online within roughly a week, while diplomatic progress on the Strait of Hormuz appears to be defusing the market’s biggest tail risk. That combination — resilience plus de-escalation — is what’s driving records, not euphoria alone.

For readers, the near-term watch list is AMD’s earnings and whether Japan’s authorities intervene again to defend the yen. Further out, the pace of Hormuz normalization and full semiconductor supply-chain recovery will shape whether this rally has legs into the fall. Nothing here should be read as a signal to change your portfolio — just context for what’s moving markets.


Sources:

  • [Stock Market Today, Aug. 4: S&P 500 and Dow Set New Highs on Easing Geopolitical Tensions The Motley Fool](https://www.fool.com/coverage/stock-market-today/2026/08/04/stock-market-today-aug-4-s-and-p-500-and-dow-set-new-highs-on-easing-geopolitical-tensions/)
  • [Stock Market Today (Aug. 4, 2026) TheStreet](https://www.thestreet.com/stock-market-today/stock-market-today-dow-jones-sp-500-nasdaq-updates-aug-4-2026)
  • [At least five dead, 41 missing after ferry catches fire off Indonesia Al Jazeera](https://www.aljazeera.com/news/2026/8/2/at-least-five-dead-41-missing-after-ferry-catches-fire-off-indonesia)
  • [Iran-Oman talks on Hormuz shipping lanes AP](https://apnews.com/article/ff5f13230ab92b5ae3022f45b2585444)
  • 令和8年熊本地震の影響について(第2報)|Sony Semiconductor Solutions
  • [Commission starts enforcing AI Act rules and new transparency requirements on 2 August European Commission](https://digital-strategy.ec.europa.eu/en/news/commission-starts-enforcing-ai-act-rules-and-new-transparency-requirements-2-august)
  • FX data: frankfurter API (August 4, 2026)

This post is based on publicly available information.

Auto-generated and AI-written. Not investment advice.