According to StockMKTNewz, Nvidia (NVDA) announced it signed a Memorandum of Understanding with the U.S. Department of Energy (source: StockMKTNewz on X, Dec 18, 2025). According to StockMKTNewz, the post did not provide financial terms, project scope, or timelines, confirming only that an MoU was signed (source: StockMKTNewz on X, Dec 18, 2025). According to StockMKTNewz, there was no mention of cryptocurrencies or digital assets, so no direct crypto-market linkage was stated in the announcement (source: StockMKTNewz on X, Dec 18, 2025).