Key Highlights

  • Utilities were the worst S&P 500 sector in the third quarter of 2026, down about 12%, according to published market data, a steep fall for a group seen as defensive.
  • The slide reflects rising bond yields, since utility stocks are valued like bonds and compete with Treasuries, with the 10-year yield above 5.2% on October 13, 2026.
  • On October 13, American Electric Power (NASDAQ:AEP) was upgraded to Overweight, and Exelon also won an upgrade, but the analyst firms and targets were not captured.
  • Utilities Select Sector SPDR Fund (NYSEARCA:XLU) holds the sector's companies, so it reflects the group's rate sensitivity, though no price move for the fund is cited here and the 12% figure is for the sector.

What Happened

Utilities fell about 12% in the third quarter of 2026, making them the worst-performing S&P 500 sector, according to published market data. The group is usually described as defensive because demand for electricity and gas holds up in weak economies. This quarter that did not protect it, as bond yields climbed. The 10-year Treasury yield sat above 5.2% on October 13. On that day American Electric Power was upgraded to Overweight and Exelon also received an upgrade. The names of the analyst firms and the targets were not captured, so the calls are reported. Utilities Select Sector SPDR Fund (NYSEARCA:XLU) is the exchange-traded way to follow the sector.

The Rate Connection

Utilities pay steady dividends, so investors compare their yields with Treasuries. When the risk-free 10-year yield rises above 5%, the income advantage fades and share prices tend to fall until dividend yields adjust. Utilities also carry heavy debt to fund power plants and grids, so higher rates raise financing costs, which regulators allow companies to recover only gradually through customer rates. Demand for electricity from data centres is a growth theme that could offset some of this, and upgrades often cite it. But the information gathered does not give the analysts' reasoning, so it should not be assumed. Regulators set returns, so earnings are steady but slow to adjust. Rate cases decide how much of those costs can be recovered.

Risks and What to Watch

The key risk is further yield gains: a hot September CPI at 8:30 a.m. ET on October 14, 2026 could renew rate-hike bets and press the sector again. Another is regulatory, since rate cases decide how much cost companies can pass on. A third is that upgrades after a big decline can be early. Investors should watch the 10-year yield, third-quarter results from utilities in the coming weeks, spending plans for data-centre power and the Federal Reserve meeting on October 27 to 28. A rebound is possible if yields ease, but it is not predicted here, and no price targets are offered. Analyst opinions can change as yields move.

Where Things Stand

The answer is rising yields. Utilities fell about 12% in the third quarter because their dividend appeal faded against a 10-year yield above 5.2%. Upgrades to AEP and Exelon came after the drop, but the analysts' reasoning was not captured. Utilities Select Sector SPDR Fund (NYSEARCA:XLU) would respond to the next move in yields. This is not investment advice. The things to watch are the 10-year yield, third-quarter reports from utilities and any sign that data-centre demand is lifting load forecasts. Upgrades after a 12% drop show some analysts see value, but they are opinions, and a further rise in yields could overwhelm them. Exelon (NASDAQ:EXC) is one of the names to follow.