<div id="readability-page-1">Shares of UnitedHealth Group Inc (NYSE:UNH) are surging 10.1% to trade at $298.71 this morning, after a Securities and Exchange Commission (SEC) filing showed that Warren Buffett's Berkshire Hathaway (BRK.A) had purchased a stake in the company, alongside Lennar (LEN) and D.R. Horton (DHI). Last quarter, around 5 million shares were bought for approximately $1.6 billion. In response to the news, the equity is eyeing its biggest daily pop since March 2020. This boost in sentiment trails several years of struggles for UnitedHealth. The company has been slammed with headwinds from healthcare costs, Department of Justice (DoJ) probes, the death of CEO Brain Thompson, and more. UNH is now facing off with the overhead 80-day moving average and remains 40% lower in 2025. Unsurprisingly, the options pits are seeing ample activity. So far 377,000 calls and 121,000 puts have been exchanged so far, 6 times the average daily pace. Most popular are the expiring August 300, 305, and 310 calls, where new positions are being opened. Short-term traders have been sporting a call-bias. This is per the security's Schaeffer's put/call open interest ratio (SOIR) of 0.44, which stands in the 5th percentile of readings from the past 12 months. It's also worth noting that the stock has tended to outperform these volatility expectations, per its Schaeffer's Volatility Scorecard (SVS) of 96 out of 100.</div>

联合健康

联合健康集团（UnitedHealth Group Inc，NYSE:UNH）的股价上涨了 10.1%，达到 298.71 美元，此前沃伦·巴菲特的伯克希尔·哈撒韦披露购买了约 500 万股的 16 亿美元股份。这标志着该股票自 2020 年 3 月以来的最佳表现，尽管之前在医疗成本和其他挑战方面面临困难。期权交易活跃，交易了 377,000 份看涨期权和 121,000 份看跌期权，显示出短期交易者的看涨偏好。该股票在 2025 年仍然低于 40%，并面临 80 日移动平均线的阻力

由于巴菲特持股，联合健康股票有望迎来自 2020 年以来的最佳表现