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Stock Market Today (August 12, 2026): AI Stocks Lift S&P 500 After CPI

S&P 500 rises as AI earnings offset in-line CPI; yields and oil ease while the VIX falls. What investors should watch next in the stock market today.

By Gold D. Lion

The stock market today delivered a selective risk-on close. The S&P 500 gained 0.3% and the Nasdaq Composite rose 0.5% as strong results from AI-infrastructure companies revived enthusiasm for the buildout. The Dow was essentially flat, while the Russell 2000 gained 0.6%.

The session’s tension was straightforward: July CPI was mild enough to prevent a fresh inflation scare, but not weak enough to make Fed rate cuts the obvious next move. Treasury yields eased only slightly, the dollar firmed, and technology—not a sweeping macro reprice—did most of the work.

The markers: S&P 500 rises as volatility falls

  • S&P 500: 7,748.50, up 0.26%
  • Dow Jones Industrial Average: 53,770.27, down 0.04%
  • Nasdaq Composite: 26,588.49, up 0.54%
  • Russell 2000: 3,045.48, up 0.61%
  • 2-year Treasury yield: 4.20%, down 2 basis points from Tuesday
  • 10-year Treasury yield: 4.68%, down 2 basis points
  • Dollar index: 99.97, up 0.15%
  • WTI crude: $82.58, down 0.75% in the late-day futures snapshot
  • Brent crude: $88.37, down 0.61% in the late-day futures snapshot
  • VIX: 14.55, down 4.78%
  • Bitcoin: about $63,515, nearly flat in the late-day snapshot

Confirmed: The official Treasury curve showed both the 2-year and 10-year yields two basis points lower. Closing-market data also showed the VIX below 15, consistent with contained demand for near-term equity protection.

Interpretation: Falling yields and a lower VIX helped growth stocks, but the firmer dollar and flat Dow argue against calling this an indiscriminate relief rally.

What moved markets: AI earnings outran an in-line CPI

The first catalyst was corporate. CoreWeave jumped 19.3% and Super Micro Computer rose 19.0% after upbeat results and forecasts reinforced expectations for sustained AI-infrastructure demand. Nvidia gained 3.0%, helping technology outperform.

The sector split made the leadership unusually clear. The technology ETF gained roughly 1.5%, while communication services fell 1.4%, materials lost 1.2%, and consumer discretionary declined 1.1%. Amazon dropped 1.8% and Apple slipped 0.9%, so even the growth trade was selective rather than uniform.

The second catalyst was inflation. The Bureau of Labor Statistics reported that headline CPI rose 0.1% in July and 3.4% from a year earlier. Core CPI, excluding food and energy, increased 0.2% for the month and 2.5% year over year. Those figures matched the rounded changes implied by the BLS index levels and were broadly in line with expectations.

Confirmed: July’s CPI did not deliver an upside surprise, and Treasury yields finished modestly lower. Reuters also reported that economists expected the Federal Reserve to leave rates unchanged in September after the data.

Interpretation: The report reduced the immediate risk of a September hike, but it did not create a clean case for cuts. Headline inflation remains above the Fed’s 2% goal, and the muted bond move suggests investors saw the release as reassuring—not transformative. For context, see our guide to the next Fed meeting and rate outlook.

Geopolitics and cross-currents: Iran risk keeps oil complicated

Oil remained caught between weaker demand forecasts and the unresolved U.S.-Iran conflict. Reuters reported that Iran said there had been no progress toward reviving an interim peace agreement with the United States. That keeps the Strait of Hormuz risk premium alive even as late-day WTI and Brent futures quotes moved lower.

Confirmed: The diplomatic deadlock and softer demand expectations pulled in opposite directions. Crude therefore did not give equities a simple geopolitical signal.

Interpretation: Lower oil helped prevent July CPI from reigniting the inflation trade, but a durable break in energy pressure still depends on physical flows and diplomacy—not one session’s futures move. The combination of gold near $4,469, a firmer dollar and a lower VIX also points to hedging around specific risks rather than broad market panic.

What to watch next: producer prices, claims and AI follow-through

  • July PPI: Producer-price data will test whether pipeline inflation is cooling as cleanly as consumer inflation appeared to.
  • Weekly jobless claims: A sharp labor-market deterioration would change the Fed debate more than today’s in-line CPI did.
  • Treasury yields: Watch whether the 2-year can hold near 4.20% and whether the 10-year remains below 4.70%.
  • AI breadth: CoreWeave and Super Micro produced large one-day moves. Confirmation requires the strength to spread beyond a handful of infrastructure names.
  • Oil and Iran: Any concrete change in talks or Strait of Hormuz flows could quickly reverse the calmer inflation read.

Investors weighing a softer labor market against still-elevated inflation can also review VisionBoard’s explainer on U.S. recession indicators.

Bottom line: a constructive close, not a macro all-clear

Wednesday’s close was constructive because the market absorbed CPI without a yield spike, volatility fell, and AI earnings translated into real buying. The Nasdaq and small caps both advanced, which is healthier than a one-stock rally.

But the message was narrower than the headline. Inflation is still above target, the Fed is more likely debating a hold versus another hike than imminent cuts, and Middle East energy risk remains unresolved. For now, the bull case rests on earnings delivery and stable yields—not on a decisive policy pivot.

For informational and educational purposes only. Nothing here is individualized investment advice.