Constellation Energy Ranks 143rd in $0.6B Trading Volume Amid $16.4B Calpine Acquisition and Nuclear Energy Expansion Surge

On August 18, 2025, Constellation Energy (CEG) recorded a trading volume of $0.6 billion, ranking 143rd in the market. The stock rose 0.17% amid renewed focus on its strategic expansion and energy infrastructure developments.

Regulatory progress marked a key catalyst, with the Federal Energy Regulatory Commission (FERC) and New York State Public Service Commission approving Constellation’s $16.4 billion acquisition of Calpine Corporation. The deal, expected to finalize in Q4 2025, is positioned to strengthen its renewable and nuclear power portfolio. Meanwhile, the New York Power Authority highlighted Constellation’s role in addressing rising electricity demand, particularly for AI-driven data centers, which require scalable, low-carbon energy solutions.

Industry dynamics also influenced sentiment. PJM Interconnection’s recent capacity auction underscored heightened demand for power generation, with Constellation benefiting from its nuclear and renewable assets. Analysts noted that nuclear energy’s growing prominence in decarbonization efforts has bolstered interest in companies with operational scale, such as Constellation, which leads in carbon-free electricity production. However, insider transactions and short-term volatility remain watchpoints, with recent net selling by insiders and mixed market timing risks.

The strategy of buying the top 500 stocks by daily trading volume and holding them for one day from 2022 to now delivered moderate returns. The 1-day return was 0.98%, with a total return of 31.52% over 365 days. This indicates the strategy captured some short-term momentum but also reflected market volatility and potential timing risks.