Constellation Energy shares climbed to $309.80 on October 6 after the company announced a 20-year power purchase agreement with Alphabet, then gave back more than 3 percent in the following sessions. The round trip leaves the stock at roughly 28 times trailing earnings and 23 times forward earnings, a multiple that looks rich until the structure of the deal is examined.
The deal is built on uprates not new builds
The $4.3 billion agreement adds 890 megawatts through updates at 11 existing reactors in Illinois, Pennsylvania and New Jersey rather than greenfield construction. Constellation expects the uprates to be complete in 2028. By contrast, the last two U.S. reactors, Georgia Power's Vogtle 3 and 4, cost more than $35 billion and took 15 years to finish. Avoiding that timeline and budget risk is the core of the investment case.
Cash flow visibility extends decades
The Alphabet contract locks in demand for 15 to 20 years and sits alongside a separate 15-year agreement covering 2,700 megawatts from the existing fleet. A similar $3 billion, 20-year deal with Amazon was announced recently. Together they shift a meaningful slice of Constellation's nuclear output off merchant power prices and onto contracted, high-margin revenue.
Valuation context matters
Shares have fallen more than 17 percent year to date, leaving the stock below its own historical valuation averages. Revenue for the first six months of the year reached $18.6 billion, up 44.5 percent from the same period a year earlier. Earnings per share doubled to $5.88. The company operates the largest nuclear fleet in the United States, roughly one-fifth of national capacity, and can deliver 22 gigawatts of carbon-free power, three times the next largest utility.
Hyperscaler geography favors the portfolio
Most of Constellation's assets sit on the PJM Interconnection grid, which covers Northern Virginia and the Mid-Atlantic region where data center density is highest. Hyperscalers are requesting multi-gigawatt commitments. Few generators have a portfolio large enough to fill them. Analysts' average price target sits at $341.53, well above current levels.