-- Alphabet（GOOG，GOOGL）旗下的谷歌DeepMind、微软（MSFT）以及特斯拉（TSLA）首席执行官埃隆·马斯克的xAI与人工智能标准与创新中心（CAISI）签署了新的协议，旨在人工智能安全问题在发布前进行评估。CAISI周二表示，这些扩展的合作将使政府能够在公开发布前测试这些模型，从而提高安全性并建立最佳实践。 该中心在一份声明中表示，迄今为止，CAISI已完成40多项软件评估，并经常收到程序的非限制版本，以便彻底调查潜在的国家安全风险。 CAISI表示，这些合作关系支持信息共享和机密环境测试，同时保持足够的灵活性以适应快速的技术进步。 CAISI主任克里斯·福尔表示，这些扩展的行业合作将有助于CAISI在关键时刻扩大其为公共利益服务的工作规模。
Price: $383.25, Change: $+3.61, Percent Change: +0.95%
US equity indexes rose in midday trading on Tuesday as crude oil futures slumped after Defense Secretary Pete Hegseth said the ceasefire agreement with Iran remains in force.The Nasdaq Composite traded 0.9% higher at 25,295.1, after touching a record 25,335.40 intraday. The S&P 500 climbed 0.7% to 7,252.3, and the Dow Jones Industrial Average advanced 0.5% to 49,187.7.Defense Secretary Pete Hegseth, speaking at a Tuesday morning press conference, said the Iran ceasefire remains in effect while promising to continue to press ahead with opening the Strait of Hormuz, the chokepoint for about a fifth of global crude oil flows.At the Pentagon press briefing, Gen. Dan Caine, chairman of the Joint Chiefs of Staff, said Iran's military actions didn't rise to the level of restarting the war, according to The Wall Street Journal. "No adversary should mistake our current restraint for a lack of resolve."The statements follow Tehran's strikes in the Strait of Hormuz and the United Arab Emirates on Monday, fueling concern that the Iran ceasefire was at risk of falling apart. Earlier this month, President Donald Trump told congressional leaders that "hostilities" with Iran have "terminated," addressing a critical 60-day deadline under a decades-old law meant to limit the use of military force without authorization from Congress, CBS News reported.West Texas Intermediate crude oil futures dropped 4% to $102.18, and Brent crude futures slumped 3.1% to $110.92.
Welltower (WELL) has an average rating of buy and mean price target of $234.16, according to analysts polled by FactSet.Price: $214.87, Change: $-2.27, Percent Change: -1.05%
The US Securities and Exchange Commission on Tuesday said it proposed rule and form amendments that would permit public companies to file semiannual reports in lieu of quarterly reports to meet their reporting obligations.Under the proposal, the filing deadline for semiannual reports would be 40 to 45 days, depending on the company's filer status, after the end of the first semiannual period of the fiscal year, the SEC said. The proposal will be published in the Federal Register, and the public comment period will remain open until 60 days after its publication, the agency said.