Stock Market Midday, Sept. 25: AI Momentum Lifts Markets as Akamai Soars on Anthropic Deal
U.S. markets rose midday on Sept. 25, with AI momentum boosting tech and utilities sectors. Akamai (AKAM) surged 15% after an $11.6B cloud deal with Anthropic, while Moderna gained and Zscaler (ZS) fell 9% on management changes. The S&P 500, Dow, and Nasdaq all climbed, despite rising Treasury yields.
How this was made

The 30-second read
Why it matters
The Akamai‑Anthropic contract is the primary catalyst driving the market's positive tone.
Market read
AI contract news lifts tech sentiment, while management turbulence drags Zscaler.
What to watch
Potential regulatory scrutiny of AI data handling could affect long‑term profitability.
Background
Midday market recap showing modest gains across major indices, with AI momentum offsetting higher yields.
Ticker impact
Akamai announced an $11.6 billion cloud services deal with Anthropic, driving a 15% after‑market surge.
Further upside as market digests the contract; potential near‑term rally.
Large contract size, immediate price reaction, and growing AI demand support a bullish outlook.
Zscaler fell 9% after announcing management changes.
Short‑term downside pressure may persist pending clarity on new leadership.
Management changes often cause uncertainty; the 9% drop reflects market concern.
Market effects
AI‑related cloud services sector gains momentum, lifting related tech names.
U.S. equities benefit from AI hype despite rising Treasury yields.
Large AI contract underscores the global race for AI infrastructure.
Counterpoint
The deal may pressure Akamai's margins if integration costs exceed expectations.
Key entities
- CompanyAkamai Technologies
Cloud services provider securing a major AI contract.
- CompanyAnthropic
AI developer partnering with Akamai.
- CompanyZscaler
Cybersecurity firm experiencing a stock decline after management changes.



