Core Insights - The Dow Jones Industrial Average and S&P 500 reached new record highs, driven by UnitedHealth Group's significant stock gain following Berkshire Hathaway's investment [1][4]. Company Insights - UnitedHealth shares surged over 9% at market open, marking the largest single-day gain since November 4, 2020, when it rose by 10.3% [4]. - Berkshire Hathaway acquired more than 5 million shares of UnitedHealth in June, valued at approximately $1.6 billion, making it the 18th-largest position in Berkshire's portfolio [5]. - Scion Asset Management, led by Michael Burry, also increased its stake in UnitedHealth, indicating growing interest from prominent investors [5]. Market Context - The broader market's performance is supported by optimism regarding potential interest rate cuts by the Federal Reserve, following recent inflation data [10]. - The CBOE Volatility Index (VIX) has decreased to its lowest levels this year, suggesting reduced market uncertainty [10].