The Dow Jones Industrial Average surged more than 500 points Thursday as a cooler-than-expected Consumer Price Index report bolstered expectations for Federal Reserve rate cuts, while Cisco Systems and Cerebras shares tumbled after quarterly reports that fell short of Wall Street estimates. The inflation data shifted market sentiment decisively toward risk-on positioning heading into the afternoon session.

Market Context

The S&P 500 climbed 1.8% and the Nasdaq Composite advanced 2.4% as rate-sensitive sectors led gains following the CPI release. Treasury yields tumbled, with the 10-year note falling below 3.9%, as traders priced in a higher probability of September Fed action after July's inflation reading showed prices rising 2.8% year-over-year versus the 3.0% consensus estimate—a 20-basis-point miss that marked the largest downward surprise since early 2023.

Analysis

Cisco shares suffered their worst single-day decline in over two decades after the networking equipment maker reported fiscal Q4 revenue of $13.6 billion, missing Wall Street estimates by approximately $400 million. The company's guidance for the current quarter also came in below expectations, with management citing continued caution among enterprise customers regarding infrastructure spending. Cerebras, the AI chip designer competing against larger semiconductor rivals, saw its shares retreat after reporting results that failed to meet elevated investor expectations around artificial intelligence demand. The company posted revenue of $87 million, below the $95 million analyst consensus, representing an 8% shortfall.

Key Numbers

- Dow Jones Industrial Average: +512 points (+1.3%)

- S&P 500: +1.8%

- Nasdaq Composite: +2.4%

- July CPI year-over-year: 2.8% (consensus 3.0%, a 20-basis-point miss)

- Cisco fiscal Q4 revenue: $13.6 billion ($400M below estimates)

- Cisco shares: -19% (largest single-day decline in 22 years)

- Cerebras revenue: $87 million ($8M below $95M consensus estimate)

What to Watch

Additional corporate earnings reports will be closely scrutinized for signs of demand strength as the Fed approaches its September policy meeting. Traders are watching Treasury yields for confirmation that bond markets have correctly priced in monetary easing. Cisco's conference call at 5 p.m. ET may provide additional context on enterprise spending trends.