Energy stocks have surged 20% year to date within the S&P 500, but Morgan Stanley cautions that the rally may lose momentum as valuations revert toward long-run norms. Analysts led by Devin McDermott note that while higher oil prices fueled part of the gain, notable multiple expansion across the sector has occurred alongside broader cyclical rotation. The bank highlights that energy now trades at a roughly 43% discount to the broader market—down from 53% at year-start and closer to the pre-COVID median of 35%.

Integrated and Services sub-sectors have driven the move higher, with Integrated majors returning to long-run relative multiples versus the market and Services near five-year averages. However, forward EV/EBITDA multiples for Integrated Oil & Gas sit at the 95th percentile since 2010, signaling stretched valuations. The bank expects oil supply-demand to improve from 2027 onward but warns the surplus may worsen before improving, citing a clear oil price downtrend over the past year tied more to geopolitical uncertainty than fundamentals. Global inventories have swelled by over 400 million barrels in 12 months, pressuring prices.

Earnings revisions breadth has been uneven, with most sub-sectors showing negative relative revisions—E&Ps and Integrateds among the weakest—while Services show pockets of positive revisions. Hedge fund exposure is elevated in Services and Integrateds but subdued for E&Ps and Midstream. Against this backdrop, Morgan Stanley advises caution, recommending investors stick to a defensive playbook and wait for a pullback before broadening exposure.