Marathon Petroleum and Valero Hit 52-Week Highs on Strong Margins
Two oil refiners reached new price peaks Friday as the S&P 500 lagged, driven by double-digit revenue growth and solid operating margins.
Key points
- Marathon Petroleum and Valero Energy are the only two S&P 500 stocks at 52-week highs as of September 18.
- MPC revenue grew 15.0% and VLO grew 12.6% over the last twelve months, supporting their 7.5% and 7.2% operating margins.
- MPC trades at 14.4x trailing earnings while VLO trades at 16.8x, reflecting their respective 133.9% and 157.9% one-year returns.
Marathon Petroleum (MPC) and Valero Energy (VLO) closed Friday, September 18, at their 52-week highs, defying a broader market that has lost 0.6% over the past month. These two names represent the only S&P 500 constituents trading at new price levels, concentrating recent equity strength exclusively within the Oil & Gas Refining and Marketing sub-sector.
The rally is underpinned by tangible fundamental improvements rather than speculative momentum. Both companies posted double-digit revenue increases over the trailing twelve months, with MPC growing 15.0% and VLO expanding 12.6%. These top-line gains translated into healthy operating margins of 7.5% for Marathon and 7.2% for Valero, validating the recent stock price appreciation.
Refiners lead narrow market advance
Marathon Petroleum, with a market cap of $122.79 billion, gained 17.8% over the last month. The stock currently trades at 14.4 times trailing earnings, a valuation that reflects its improved earnings power. Over the past year, MPC shares have surged 133.9%, significantly outperforming the broader index's negative return.
Valero Energy, valued at $121.5 billion, saw a 19.4% monthly gain. Its shares trade at 16.8 times trailing earnings, slightly higher than its peer but supported by a 157.9% one-year return. The concentration of new highs in just these two tickers highlights a sharp divergence between energy refiners and the rest of the S&P 500.
Fundamentals support new price levels
According to data from trefis.com, the price action aligns with improved business performance. The trailing twelve-month figures show both firms generating positive operating margins while expanding revenue. This combination suggests that the recent equity gains are supported by actual cash flow generation and margin expansion, rather than purely sentiment-driven trading.
Investors should view these 52-week highs as a signal to verify underlying earnings quality. While price movement indicates market confidence, the sustained strength depends on the companies maintaining their revenue growth trajectories and margin profiles. The current valuation multiples of 14.4x and 16.8x require continued execution to remain justified.
Market strength concentrates in energy
The broader S&P 500 has struggled, returning -0.6% over the last month. In this context, the performance of MPC and VLO stands out as an outlier. Their one-week gains of 7.3% and 5.9%, respectively, demonstrate that capital is rotating into specific sectors with demonstrable fundamental improvement, leaving the wider market behind.
This concentration suggests that investors are prioritizing businesses with clear revenue growth and positive margins over general market exposure. The two refiners have effectively decoupled from the broader index's weakness, marking a distinct shift in where equity value is being created this week.
