Why Has U.S. Steel Stock Moved 60%?

U.S. Steel's stock (X) has surged over 50% YTD, contrasting sharply with peers and the S&P 500's performance, driven by President Trump's endorsement of a strategic partnership with Nippon Steel in a $14.9 billion deal. While Q1 2025 revenues saw a modest increase to $3.73 billion, earnings per share widened to -$0.52, and revenue was down 10.4% year-over-year; however, the market is reacting positively to the proposed acquisition, anticipating U.S. Steel becoming part of the world’s third-largest steel producer.

Analysis

United States Steel (X) has experienced a significant stock price appreciation of over 50% year-to-date, starkly outperforming the S&P 500's 1% loss and most steel industry peers like Cleveland-Cliffs (-32% YTD) and Nucor Corp (-5% YTD). This surge is primarily attributed to President Donald Trump's endorsement of a reframed strategic partnership with Japan's Nippon Steel, a $14.9 billion deal previously facing headwinds. The partnership, which includes Nippon Steel investing up to $4 billion in a new mill and aims to create 70,000 jobs, is expected to allow U.S. Steel to maintain its Pittsburgh headquarters and U.S. government control, positioning it within the world's third-largest steel producer. Despite this M&A-driven optimism, U.S. Steel's recent financial performance presents a mixed picture: revenues grew 2.5% sequentially to $3.73 billion in Q1 2025 from $3.64 billion in Q4 2024, but this was a 10.4% decrease year-over-year. Concurrently, losses per share widened from -$0.39 in Q4 2024 to -$0.52 in Q1 2025, and adjusted EBITDA fell to $172 million in Q1 2025 from $190 million in Q4 2024, with the Flat-Rolled segment's adjusted EBITDA declining 33% year-over-year. The company's Price-to-Sales (P/S) multiple has risen to 0.6, up from 0.5 in 2024 and notably higher than the 0.3 levels seen at the end of 2021 and 2022, suggesting increased valuation. However, U.S. Steel anticipates an improvement in Q2 2025, with adjusted EBITDA projected to be between $375 million and $425 million due to easing seasonal constraints and rising steel prices.

Key Decisions for Investors

• Investors should recognize that the significant year-to-date stock appreciation in U.S. Steel likely prices in much of the optimism surrounding the Nippon Steel partnership, warranting scrutiny of the deal's finalization and integration progress.
• Monitor U.S. Steel's upcoming quarterly earnings closely, particularly the Q2 2025 adjusted EBITDA guidance of $375-$425 million, as a key indicator of operational recovery amidst ongoing industry challenges and to justify the current valuation.
• Given the current P/S multiple of 0.6 is elevated compared to recent historical levels (0.3 in late 2021/2022), investors should be cautious of potential valuation downside if the anticipated synergies from the Nippon Steel deal fail to materialize or if underlying financial performance does not improve significantly.
• Consider the geopolitical and regulatory landscape surrounding the Nippon Steel deal, as any renewed opposition or significant changes to the terms could impact stock performance despite the recent positive endorsement.