# software shares tumbled on Thursday as fears over disruptions from advances in AI returned to the forefront.

*business · news · 2026-04-09 · Reuters*

## Key points

- Anthropic launched a powerful AI model but withheld wide release due to cybersecurity concerns.
- The new AI model, Mythos, revealed longstanding vulnerabilities in existing software systems.
- U.S. software stocks are trading at near-bottom historical earnings multiples amid AI disruption fears.
- Private credit investors are increasingly scrutinizing loans to tech firms due to uncertain growth prospects.

**Companies:** Interactive Brokers, ClearBridge Investments, Anthropic, JonesTrading
**Countries:** United States, Iran, India

[Read the full story on Reuters](https://www.reuters.com/business/us-software-stocks-fall-anthropics-new-ai-model-revives-disruption-fears-2026-04-09/)

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