Caught something interesting about Constellation Energy last month. The stock jumped 17.5% in February, and there's actually a solid story behind the move that goes beyond just quarterly numbers looking good.

So here's what happened: they posted Q4 results that beat expectations on both revenue ($6.1B vs $5.6B consensus) and earnings ($2.30 per share adjusted vs $2.25 expected). That alone would've been enough to move the needle, but there's more to it. The company's been executing pretty well on its growth strategy, especially after closing the Calpine acquisition in January.

What's interesting is the different types of constellation energy assets they now control. You've got nuclear as their core strength, but the Calpine deal brought in natural gas and geothermal capacity too. That diversification is starting to pay off in a big way with data center deals. They just locked in 380 MW for a new CyrusOne facility in Texas, with another 380 MW committed for phase two. Over 1.1 GW total to CyrusOne alone. Add in their existing agreements with Microsoft and Meta for nuclear power, and you're looking at a company that's positioned right where the demand is.

The full-year numbers were solid too. Adjusted operating earnings climbed from $8.64 to $9.39 per share, and they beat their guidance range for the fourth year running. That's the kind of consistency that gets investors' attention.

Now, the valuation's gotten pretty stretched at 28x forward earnings, which is above the S&P 500 and even the Nasdaq-100. That's a premium price for an energy stock. But given the pipeline of growth they've built with these data center contracts and the momentum from Calpine, there's probably more runway here. They're supposed to lay out their full 2026 strategy next month, which could give more clarity on just how much upside is baked in at current levels.

The real question is whether this growth trajectory justifies the premium valuation. From what I'm seeing, they've got the contracts locked in and the assets to deliver, so it might not be as stretched as it looks on the surface.