Thematic Thursday: What April’s Rotation Says About Fossil Fuels, Nuclear, and Renewables

Recent flow and performance data point to a market drawing an increasingly clear distinction between commodity exposure and power exposure. The fossil-fuel complex has benefited from geopolitical stress in the short term, and the updated 4/23 B file shows that sponsorship has improved: fossil-fuel funds posted roughly +$201.0M of 1-week flows and +$765.2M of 1-month flows, even though the group’s average 1-month return was still -1.6%. Nuclear remained stronger on a price basis, with about +$260.5M of 1-month flows and an average +19.5% 1-month return, while broad clean energy drew roughly +$1.03B over one month with an average +13.8% return. Dedicated wind-and-solar exposure was positive, but still much more modest, with about +$35.4M of 1-month flows and +7.3% average 1-month performance. The updated picture therefore does not overturn the earlier conclusion. It refines it: fossil fuels are seeing better tactical sponsorship, but the stronger month-long leadership is still in nuclear and power-linked clean-energy infrastructure.

That split still makes sense in the current macro environment. Oil has been repriced higher because the market is carrying a meaningful geopolitical premium. Reuters reported on April 23 that shipping through the Strait of Hormuz remained disrupted as U.S.-Iran talks stalled, with Brent still above $100 after a sharp rally and the strait normally handling about 20% of global oil transit. Reuters also noted that U.S. crude and petroleum exports reached a record 12.88 million barrels per day. That backdrop helps explain why oil-sensitive funds are attracting more short-term capital than they were earlier in the month. But the fact that average 1-month returns across the fossil-fuel bucket remain negative suggests investors still see this more as a tradeable geopolitical hedge than as the market’s cleanest structural leadership trend.

Nuclear, by contrast, still looks closer to a durable leadership theme. Reuters reported on April 21 that the U.S. government’s UPRISE initiative is designed to add 5 gigawatts of nuclear capacity by 2029 through uprates and restarts, while another Reuters report noted that the first five to ten newly planned U.S. nuclear reactors are likely to receive Energy Department loans. That policy backdrop supports the strong month-to-date gains in the nuclear complex, including URA, URNM, NLR, NUKZ, and SMRF, and helps explain why the group continues to pair positive flows with the strongest return profile among the major energy buckets.

Renewables still tell a more selective story. Reuters reported on April 22 that clean-power sources generated more electricity than fossil-fuel plants in the United States for the first time in March 2026, accounting for 52% of utility generation that month. Reuters also reported on April 14 that U.S. solar and wind contract prices rose sharply in the first quarter as developers faced tariffs, labor shortages, permitting friction, and stronger demand from data centers. That helps explain why the market is still funding clean energy, but doing so more aggressively through grid, electrification, and diversified clean-power infrastructure than through pure wind-and-solar beta alone. The broad clean-energy bucket has both the largest 1-month inflow total and a much stronger return profile than fossil fuels, even though the dedicated wind-and-solar sleeve remains positive but narrower.

The larger macro thread is that electricity demand is becoming the more important story than commodity scarcity alone. Reuters, citing the EIA, reported on April 7 that U.S. power consumption is expected to rise from a record 4,195 billion kWh in 2025 to 4,244 billion kWh in 2026 and 4,381 billion kWh in 2027. Reuters also reported on April 20 that hyperscalers are expected to invest roughly $635 billion in AI infrastructure this year, with Morgan Stanley projecting U.S. data-center demand could reach 80 gigawatts by 2028, creating a potential supply shortfall. That demand backdrop is the key reason the market continues to favor firm power and power-enabling infrastructure over a simple commodity-beta trade.

The conclusion remains broadly the same, but with one important refinement from the 4/23 B file. Investors should still favor nuclear first, selective clean energy second, and fossil fuels third. Fossil fuels have gained more tactical sponsorship than before, so the group deserves more respect as a short-term hedge against Middle East disruption. But the market is still rewarding reliable power, grid buildout, and energy infrastructure tied to rising electricity demand more convincingly than it is rewarding broad oil-and-gas beta. Wind and solar remain investable, but the better expression of the theme still appears to be through grid modernization, diversified clean-power platforms, and electricity-demand beneficiaries rather than a blanket bet on turbine and panel beta. The market is pricing energy security in the short run and power scarcity in the medium term. Right now, nuclear still sits closest to the intersection of both.

Sources

Reuters on stalled U.S.-Iran talks, disrupted Strait of Hormuz shipping, and oil’s geopolitical premium.
Reuters on the U.S. nuclear uprate and restart push through the UPRISE program.
Reuters on Big Tech backing next-generation nuclear to meet AI-driven power demand.
Reuters on U.S. clean electricity surpassing fossil-fuel generation in March 2026.
Reuters on rising U.S. solar and wind contract prices amid tariffs, labor shortages, and stronger demand.
Reuters and the EIA on record U.S. electricity demand forecasts for 2026 and 2027.

Additional data sourced from Factset Research Systems Inc.