Energy and Materials Stocks Surge as Oil Crosses $100 — CF Industries, Dow Inc, and Mosaic Lead the Rally
While the broader S&P 500 posts its third consecutive weekly loss, energy and materials sectors buck the trend with CF Industries up 7.25% and Dow Inc gaining 5.09%.
A Sector Rotation in Real Time
As the S&P 500 fell 0.61% on March 13 to close at 6,632 — marking its third consecutive weekly loss and its lowest level of 2026 — a handful of sectors were quietly having their best week in months. Energy and materials stocks surged on the back of rising oil prices, with Brent crude trading around $102 per barrel. The divergence between the broader market's decline and the energy sector's rally illustrates a classic sector rotation playing out in real time.
The standout performers tell the story. CF Industries jumped 7.25%, Dow Inc climbed 5.09%, Mosaic Company gained 4.77%, and LyondellBasell rose 3.61%. These are companies that directly benefit from elevated energy and commodity prices — either as energy producers, chemical manufacturers that gain pricing power, or fertilizer companies whose input costs are offset by higher end-product pricing.
Why Energy Is Outperforming
The mechanics are straightforward. Rising oil prices increase revenue for energy producers while simultaneously raising costs for energy consumers — which includes most of the rest of the S&P 500. When oil crosses $100, the profit boost for energy companies outweighs the drag on the broader index, creating a natural hedge for portfolios that maintain energy exposure.
For agricultural and chemical companies like CF Industries and Mosaic, the calculus is similar but with an additional layer. These companies benefit from commodity price increases that track energy markets, while their products face inelastic demand — farmers need fertilizer regardless of price, and industrial customers need chemicals to keep manufacturing lines running.
What This Means for Portfolio Strategy
The week's performance data offers a useful reminder about diversification. While the S&P 500 as a whole declined 1.6% for the week, a portfolio with meaningful energy and materials exposure would have significantly outperformed. In an environment where energy prices are elevated and potentially rising further, sector positioning matters more than usual.
For traders watching the energy space, the key question is whether oil prices at $100+ represent a new baseline or a temporary spike. If elevated prices persist through Q2, energy companies' earnings revisions could drive further outperformance — making this week's movers worth watching as potential multi-week trades rather than one-day pops.
Sources: 24/7 Wall St. (March 13, 2026), CNBC (March 12, 2026), Bloomberg (March 13, 2026), Fox Business (March 13, 2026)