Title: <US> DJIA Drops 821 Points at Close Amid Worries About Tariffs and AI Effects; IBM Falls 13%

Market Reaction to AI and Tariffs: Investors are concerned about the impact of AI on industries and the increase in global tariffs by President Trump, leading to significant declines in major US stock indices, with the DJIA dropping 821 points or 1.7%.

Impact of Anthropic's Announcement: Anthropic's new programming feature for Claude Code caused IBM's stock to plummet by 13%, contributing to the overall decline in the DJIA, while other software stocks like Microsoft and CrowdStrike also faced losses.

Mixed Performance of Financial Stocks: Financial stocks struggled, with American Express down 7% and both Visa and JPMorgan down 4%, while defensive stocks like Walmart and Procter & Gamble showed resilience, gaining 2-3%.

Tariff Increase Consequences: Trump's announcement to raise global tariffs from 10% to 15% led to the suspension of the US-EU trade agreement review by the European Parliament, causing notable declines in companies like Wayfair and Nike.