Core Insights - The S&P 500 and Nasdaq composite experienced their largest one-day declines in six months, indicating significant market volatility and investor concern [1] Market Performance - The S&P 500 index fell sharply, reflecting broader market trends and investor sentiment [1] - The Nasdaq composite also saw a steep drop, highlighting the impact on technology stocks [1]

Core Insights - The article discusses significant stock movements of major companies influenced by recent news events [1] Company Movements - Several major companies experienced notable stock fluctuations due to the week's news [1]

The agreement follows last week's deal with Pfizer. ...

Furloughed federal workers are being recalled to issue the monthly inflation report that was due out next week. The Bureau of Labor Statistics has said it would publish the data on Oct. 24. ...

The two companies are already codeveloping a treatment for ulcerative colitis. ...

Focus remains on developments related to the U.S. government shutdown and any indications regarding prospects of further rate cuts by the Fed. In Europe, inflation data will be watched. ...

Economic sentiment remained grim but held steady near recent levels in October as a federal shutdown hampered government functions and sidelined thousands of workers, according to the University of Michigan's latest consumer survey. ...

Beijing's move against the San Diego chip giant is the latest in a two-day barrage of actions targeting the U.S. ...

Group 1 - BASF will retain a 40% stake in the business after the sale is completed [1] - The deal values the business at $8.91 billion [1]

Sunak, who remains a member of Britain's parliament, said he would be working with the tech companies as a senior adviser and strategic consultant. ...