Key Highlights

● Utilities rose on Friday, October 30, 2026.

● Investors rotated into defensive sectors.

● Dominion, Exelon and Alliant beat Earnings estimates.

● Data-center Demand features in Utility spending plans.

The utility sector rose on Friday, October 30, 2026, one of six sectors to finish higher on Wall Street's worst day since June, according to market data. The S&P 500 fell 140.32 points to 7,580.07, the Dow Jones Industrial Average dropped 572.25 points to 51,770.31 and the Nasdaq Composite lost 747.73 points to 25,437.00.

Utilities ranked behind energy and consumer staples among the day's gainers, and ahead of health care, materials and real estate. A closing level for the Dow Jones Utility Average was not immediately available on Friday.

Earnings beats

Several utilities reported strong results. Dominion Energy (NYSE:D), the Richmond, Virginia-based utility, posted third-quarter operating earnings of $1.28 a share, well above the $1.06 estimate, according to market data, and said it expects to land in the top half of its full-year range of $3.45 to $3.69 a share. The shares rose.

Exelon (NASDAQ:EXC) reported adjusted third-quarter earnings of $0.87 a share, above expectations, and narrowed its 2026 guidance to $2.85 to $2.91 a share. Alliant Energy (NASDAQ:LNT) reported third-quarter earnings of $1.52 a share against $1.09 expected, set 2027 guidance of $3.63 to $3.73 a share and raised its Capital spending plan to $15.9 billion, citing 3.4 gigawatts of data-center demand.

The defensive appeal

Utilities are classic defensive stocks, and Friday showed why investors turn to them. They sell electricity and gas that customers need regardless of the economy, and their earnings are often regulated, which makes them steadier than most businesses. On a day when investors were fleeing AI and chip stocks, that stability drew buyers.

The selling elsewhere was intense. Intel (NASDAQ:INTC) warned of cash burn this year and posted its biggest one-day drop on record. Amazon (NASDAQ:AMZN) reported trailing 12-month free Cash Flow of negative $42.4 billion. The Philadelphia Semiconductor index fell steeply to 10,688.80. A senior market analyst said that "strong AI demand is no longer enough on its own."

The data-center angle

There is an irony in the rotation. Utilities are increasingly tied to the same AI boom that investors were selling. Alliant's raised spending plan rests on demand from data centers, which need enormous amounts of power. That gives utilities a way to benefit from AI Investment through regulated, long-term contracts rather than through volatile chip or software sales.

Politics could affect that link. Investors are watching state and local races in the midterm elections, including in Texas, for their implications for data-center development.

Friday's gain capped a strong October. Utilities, health care and consumer staples each posted strong gains for the month, according to market data, while technology and communication services were the only sectors to fall. Energy led all sectors as oil climbed above $100 a barrel.

Rates were supportive on Friday. Treasury yields fell, with the 10-year yield declining. Lower yields tend to help utilities, whose dividends compete with bonds for income-seeking investors.

What to watch

Interest rates are the biggest variable for utilities. The Federal Reserve held rates steady on October 28, but futures markets are pricing in a December hike, and three Fed officials said Friday that rates need to rise. The October jobs report on Friday, November 6, will shape those expectations. The midterm elections on Tuesday, November 3, could also influence the outlook for power demand and data-center buildouts.