Stock Market Today: S&P 500, Nasdaq Rise to New Records; Oil Gains as Trump Rejects 'Unacceptable' Iran Peace Plan Response

U.S. stocks started the week higher, with the S&P 500 up 0.3% and Nasdaq up 0.3% as both indexes set fresh records, while oil surged after Trump called Iran's response to a peace proposal "totally unacceptable." WTI rose 3.7% to around $99 a barrel and Brent gained 3.5% to $104.80, pushing the S&P 500 Energy sector up 2.2%; the 10-year Treasury yield also moved up to 4.39% from below 4.36%. Individual movers included Nvidia up nearly 3% to an all-time high, Intel up nearly 6% premarket after a 14% Friday jump, and Moderna up nearly 7% on hantavirus vaccine hopes.

Analysis

The immediate winner is still the energy complex, but the more interesting read-through is that higher crude is now colliding with a market that has been priced for disinflation and soft-landing stability. That combination tends to lift nominal winners like E&P and pipeline names while compressing duration-sensitive multiple expansion in software, consumer discretionaries, and rate-proxy growth trades if the move in inflation expectations persists beyond a few sessions.

The bigger second-order risk is not the first-order oil move; it is the CPI print and the 10-year repricing. If energy feeds through even modestly, markets will quickly shift from "tariff-era inflation is transitory" to "headline inflation re-accelerates," which would push real yields higher and narrow the leadership breadth that has been propping the index. In that regime, semis can still outperform on idiosyncratic AI demand, but the broader basket gets more fragile because multiple expansion becomes harder to defend.

There is also a notable divergence between the chip complex and the rest of tech. Intel and Micron strength is less about the macro tape and more about a scarcity/AI-capex narrative that can keep working even if index-level risk appetite cools. By contrast, the market may be underpricing the chance that the huge enthusiasm for near-term IPOs and index changes becomes a liquidity sponge: fresh supply plus higher rates is usually a bad mix for newly public growth names and benchmark-heavy passive flows.

Contrarian view: the oil move may be too linear if traders assume geopolitical escalation automatically translates into sustained price inflation. The market can front-run a supply shock faster than physical barrels tighten, and any diplomatic headline or strategic inventory release could reverse crude in days, not months. That makes chasing cyclicals here less attractive than expressing the view through defined-risk options or relative-value spreads.

Key Decisions for Investors

• Long XLE vs short QQQ for 1-3 weeks into CPI; thesis is higher oil pushes inflation expectations and Treasury yields up, which should pressure high-multiple tech more than energy equities.
• Buy OXY and APA on pullbacks only, with a 2-4 week horizon; use tight stops if WTI rolls back below the prior breakout level, since these names are high beta to crude and can retrace fast on any de-escalation headline.
• Add a tactical short in rate-sensitive consumer names or UAL on any hot CPI print; if the 10-year moves above 4.50%, discretionary demand and airfare elasticity become the first macro casualties.
• Maintain a relative long NVDA / short broad semis hedge rather than outright long semis; the stock-specific AI capex story is stronger than the index-level tape, but a hotter inflation path could cap multiple expansion across the group.
• Avoid chasing CRCL/near-term IPO enthusiasm until after CPI and the Trump-Xi meeting; higher rates plus policy uncertainty increases the odds of post-IPO air pockets and poor secondary performance.