Key Stats
- Current Price: $300 (May 12, 2026)
- Q1 2026 Revenue: $11.1B (+64% YoY)
- Q1 2026 Adjusted EPS: $2.74 (+$0.60 vs. Q1 2025)
- Q1 2026 GAAP EPS: $4.49
- FY2026 Adjusted EPS Guidance: $11 to $12 per share (affirmed)
- TIKR Model Price Target: $569
- Implied Upside: ~90%
Constellation Energy Q1 2026 Earnings: What the Numbers Show
Constellation Energy (CEG) reported Q1 2026 revenue of $11.1B, a 64% increase over the $6.8B posted in Q1 2025, driven primarily by the Calpine acquisition that closed in early 2025.
Adjusted operating EPS came in at $2.74, up $0.60 from the $2.14 reported in Q1 2025, according to Shane Smith, Constellation’s Chief Financial Officer on the Q1 2026 earnings call.
Smith attributed the earnings improvement primarily to EPS accretion from Calpine, noting the acquisition contributed approximately $2 per share of accretion on a full-year basis.
Higher capacity prices in PJM and lower stock-based compensation expense also contributed positively, partially offset by more planned nuclear refueling outage days, lower ZEC pricing across state programs, and higher cost to serve load associated with Winter Storm Fern.
Nuclear operations remained strong: Constellation generated 40 million megawatt hours from its operated nuclear plants at a 92.3% capacity factor, while the combined cycle and cogeneration fleet produced 23 million megawatt hours at a 47.1% capacity factor.
Management affirmed full-year 2026 adjusted operating EPS guidance of $11 to $12 per share.
Constellation repurchased approximately 1.2 million shares at an average price of roughly $285 per share, deploying $335M in buybacks since the last earnings call, according to CEO Joe Dominguez.
On the data center front, Dominguez cited projected hyperscaler spending levels for 2026 running nearly 75% higher than last year, and Constellation submitted approximately 5,000 megawatts of new capacity resources into PJM’s interconnection queue, including nuclear uprates, new natural gas generation, and battery storage.
PJM regulatory progress moved faster than management expected, with PJM targeting a framework submission to FERC in June, a development Dominguez described as providing critical clarity for large load customers evaluating colocated data center projects.
Constellation also received PUCT approval for the net metering agreement tied to its Powered Land deal with CyrusOne at the Freestone Energy Center, with power delivery to the data center expected to be energized in Q4 2026.
Free cash flow before growth guidance was reiterated at $8.4B across 2026 and 2027, with the 2028 to 2029 window expected to produce $11.5B to $13B.
Constellation Energy Stock: What the Financials Show
The Q1 2026 income statement marks a step-change from the prior-year trend, with the Calpine consolidation reshaping both the revenue base and the margin profile in a single quarter.
Revenue tracked between $5.4B and $6.8B across the seven quarters from June 2024 through December 2025, with no sustained upward trend across that window.
Q1 2026’s $11.1B represents a more than 60% jump off any prior quarterly reading in the screenshot, reflecting Calpine’s full consolidation rather than organic top-line acceleration.
Operating income also reset sharply: after troughing at $460M in Q1 2025, it recovered to $950M in Q2, $1.07B in Q3, then compressed to $580M in Q4 2025 before the Q1 2026 Calpine contribution pushed EBIT to $2.3B.
EBIT margin also expanded to 21% in Q1 2026 compared to 10% in Q4 2025, a meaningful sequential and year-over-year improvement.
Additionally, Smith noted that traditional commercial and industrial power margins have expanded, carbon-free solution demand has added incremental margin, and the Calpine retail portfolio further enhances the outlook through a higher mix of tailored products.
What Does the Valuation Model Say?
TIKR’s model prices Constellation Energy stock at $569, implying roughly 90% upside from the current price of $300, with an annualized return of 15% per year through December 2030.
The mid-case model assumes a revenue CAGR of around 6% and a net income margin of 16%, with EPS growing at a 12% CAGR through the forecast period.
Q1 2026’s $11.1B revenue base and 21% EBIT margin land well above what the model’s historical inputs reflect, providing a stronger starting point than the prior year trailing figures.
Constellation Energy stock enters the back half of 2026 with a validated earnings inflection, a reaffirmed EPS range of $11 to $12, and a capital return program that just deployed $335M at prices the board publicly called a bargain.
Whether Constellation Energy stock can sustain its margin step-up post-Calpine, or whether Q1’s 21% EBIT margin reflects favorable seasonality rather than a durable new baseline, is what the investment case hinges on.
What Has to Go Right
- EBIT margin holds above 15% in subsequent quarters, validating that Calpine’s integration has structurally raised the floor rather than Q1 simply benefiting from favorable capacity pricing and seasonal load
- PJM delivers its framework to FERC in June and colocation rules follow shortly after, unlocking the pipeline of data center contracts that Dominguez described as paused but not cancelled
- Hyperscaler capex, projected 75% higher than last year, translates into signed long-term offtake agreements from the ~5,000 MW PJM queue Constellation already submitted
- Nuclear fleet maintains its 90%-plus capacity factor while Crane unit earns full capacity credit on a 2027 timeline via the pending FERC CIR transfer ruling
What Could Still Go Wrong
- Q1 2025 troughed at $460M in operating income largely on refueling and ZEC headwinds; if Q1 2026’s $2.3B EBIT reflects Calpine’s full consolidation alongside unusually favorable capacity pricing, subsequent quarters may compress back toward the $580M to $950M range seen in Q2 through Q4 2025
- The Calpine lockup expiry on June 30, 2026 introduces potential supply of 25 million shares; management acknowledged flexibility to absorb a transaction but offered no commitment on timing or scale
- PJM regulatory clarity extending past mid-year delays large load contract conversions, with some customers explicitly waiting for final rules before signing agreements
- Hyperscaler spending projections are subject to revision, and ERCOT forward curves beyond 2027 that management described as undervalued may remain suppressed if load growth timelines slip
Should You Invest in Constellation Energy Corporation?
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