--- title: "U.S. stock market midday update: Elon Musk's remarks impact the nuclear power industry, Oklo's stock price plummets 11.5%, raising market concerns" type: "News" locale: "en" url: "https://longbridge.com/en/news/269563228.md" description: "Oklo fell 11.50%; Constellation Energy fell 6.02%, with a transaction volume of USD 956 million; New Era Energy rose 0.49%, with a transaction volume of USD 426 million; Pacific Gas and Electric rose 2.19%, with a transaction volume of USD 265 million; Southern Power fell 0.39%, with a market value of USD 92.9 billion" datetime: "2025-12-12T20:02:46.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/269563228.md) - [en](https://longbridge.com/en/news/269563228.md) - [zh-HK](https://longbridge.com/zh-HK/news/269563228.md) --- # U.S. stock market midday update: Elon Musk's remarks impact the nuclear power industry, Oklo's stock price plummets 11.5%, raising market concerns **U.S. Stock Market Midday Update** Oklo fell 11.50%, with increased trading volume. Based on recent key news: 1. On December 12, Elon Musk may render the SMR nuclear power industry irrelevant. This news has raised market concerns about Oklo's future development, leading to a significant drop in stock price. 2. On December 10, the efficiency improvement of cutting-edge model training methods may pose a threat to Oklo. This technological advancement could weaken Oklo's competitiveness and affect investor confidence. 3. On December 10, the stock price of the nuclear energy startup Oklo has experienced roller-coaster fluctuations over the past few months. The market's concerns about its instability have further exacerbated the decline in stock price. The nuclear energy industry faces technological challenges, with significant capital outflows. **Top Stocks by Industry Trading Volume** Constellation Energy fell 6.02%. Based on recent key news: 1. On December 10, Constellation Energy announced a private exchange offer and consent solicitation for Calpine Corporation bonds, leading to increased market concerns about its financial condition and a drop in stock price. 2. On December 10, Spark's AI analyst rated CEG stock as outperforming but pointed out liquidity issues caused by high valuations and negative free cash flow, affecting market confidence. 3. On December 12, Constellation received the "Energy Deal of the Year" title at the 2025 Platts Global Energy Awards. Although this honor enhanced the company's image, it failed to reverse the downward trend in stock price. The energy industry faces valuation pressure and liquidity risks. NextEra Energy rose 0.49%. Based on recent key news: 1. On December 12, Fuzzy Panda Research released a report recommending shorting NextEra Energy, affecting market confidence in the stock and increasing price volatility. Source: Reuters 2. On December 11, NextEra Energy Vice President Reagan Ronald R submitted an application to sell restricted securities, which may raise market concerns about insider stock sales, affecting stock price. Source: SEC announcement 3. On December 10, JP Morgan raised the target price for NextEra Energy from $94 to $97, reflecting analysts' optimistic expectations for the company's future performance, which may positively impact the related industry. Source: JP Morgan report, electricity demand is expected to grow significantly. Pacific Gas and Electric rose 2.19%. Based on recent news: 1. On December 12, Pacific Gas and Electric Company announced a fourth-quarter common stock cash dividend of $0.05 per share, a 100% increase from the previous $0.03. This news boosted investor confidence and drove the stock price up 2. On December 11, Pacific Gas and Electric Company successfully launched a technology demonstration project aimed at improving the reliability and capacity of the power grid to cope with extreme weather conditions and facilitate the integration of more renewable energy. This initiative has enhanced market confidence in the company's future development. 3. On December 12, Pacific Gas and Electric Company announced its quarterly dividend payments for eight series of preferred stocks, with amounts ranging from $0.27250 to $0.37500 per share. This further demonstrates the company's stable financial condition. The overall performance of the power industry has been good recently, with increased policy support. **Stocks Ranked Among the Top in Industry Market Capitalization** Southern Company fell 0.39%. Based on recent key news: 1. On December 12, Seeking Alpha analyst Narek Hovhannisyan upgraded Southern Company's rating from Hold to Buy, driving the stock price up by 0.77%. The analyst believes that the current price adjustment provides an opportunity to purchase high-quality companies, with an expected growth potential of 10-15% over the next year. 2. On December 11, Mizuho lowered Southern Company's target price from $97 to $88, reflecting concerns about the difficulty of future electricity price increases. This move is related to the election results of the Georgia Public Service Commission, which may affect future electricity pricing policies. 3. On December 12, Goldman Sachs also lowered Southern Company's target price to $98, further exacerbating market uncertainty regarding electricity pricing policies. Analysts believe that despite the risks, Southern Company remains a stable investment choice. Demand in the power industry is growing, while policy risks are increasing ### Related Stocks - [OKLO.US](https://longbridge.com/en/quote/OKLO.US.md) ## Related News & Research - [Oklo says in US talks on using Cold War-era plutonium for nuclear fuel](https://longbridge.com/en/news/287630808.md) - [The Biggest Catalyst for OKLO Stock May Not Be Earnings, But a Brewing Short Squeeze](https://longbridge.com/en/news/285434325.md) - [SpaceX opens at $150 per share.](https://longbridge.com/en/news/289619238.md) - [Oracle Stock Suffers Worst Week Since 2002: Should You Buy This Dip?](https://longbridge.com/en/news/289623081.md) - [SpaceX opens at $150, an 11% pop for the most anticipated debut in history](https://longbridge.com/en/news/289620017.md)