Key Takeaways for Vistra Stock
- Revenue grew 43% year-over-year to $5.64 billion in Q1 2026.
- Operating income swung from a loss of $120 million in Q1 2025 to $1.50 billion in Q1 2026.
- Operating margins expanded from negative 3% to 27% over a single year.
- TIKR’s model values VST at around $155 by December 2030, roughly 5% above the current price of $148.
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Vistra Delivers a Record Q1, but VST Stock Still Trades 32% Below Its 52-Week High
Vistra Corp. (VST), the largest competitive power generator in the United States, reported a record first quarter following its May 7, 2026 earnings call, with revenue of $5.64 billion up 43% from the same period last year.
The company operates an integrated fleet of natural gas, nuclear, coal, solar, and battery storage assets across major markets including ERCOT (the Texas grid) and PJM (the mid-Atlantic and Midwest grid operator), while also running a retail electricity business serving roughly 5 million customers.
The headline number was $1.494 billion in adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization, a proxy for operating cash generation), which CEO Jim Burke called “a record result for a calendar first quarter.”
That record came despite the second-warmest first quarter in ERCOT since 1950, a headwind Burke addressed directly on Q1 earnings call: “one of the benefits of our business is a highly diversified business, both generation and retail.”
Natural gas fleet availability during Winter Storm Fern reached 97%, while nuclear ran at 100%, underscoring the operational quality behind the financial result.
Vistra also reaffirmed its full-year 2026 guidance and maintained its 2027 adjusted EBITDA midpoint opportunity range, signaling management confidence in the earnings trajectory even before the pending acquisition of 5,500 megawatts of Cogentrix natural gas capacity is factored in.
Long-term power purchase agreements with Meta covering around 2,600 megawatts of PJM nuclear capacity represent contracted revenue not yet included in guidance, providing a layer of future earnings clarity the income statement has not yet captured.
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VST’s Operating Margin Swings from Negative 3% to 27% in One Year
Vistra’s revenue grew 43% year-over-year to $5.64 billion in Q1 2026, the sharpest year-over-year top-line acceleration in the eight quarters shown in the income statement.
Total operating expenses rose to $4.14 billion from $4.05 billion in the prior-year quarter, a 2% increase against the 43% revenue jump.
That cost discipline is the mechanism: revenue scaled dramatically while the cost base held nearly flat, turning a $120 million operating loss in Q1 2025 into $1.50 billion of operating income in Q1 2026.
Operating margins moved from negative 3% to 27% over a single year, an inflection that reflects the structural improvement in power market pricing and capacity revenues rather than one-time items.
SG&A held at $430 million in Q1 2026, roughly consistent with the prior four quarters despite the revenue surge.
Vistra Leads CEG on Q1 2026 Operating Margins While NRG Trails at 4%
Vistra posted a 27% operating margin in Q1 2026, outpacing Constellation Energy (CEG) at 22% and leaving NRG Energy (NRG) at 4% over the same quarter.
The gap between Vistra and NRG is not new: NRG has trailed both peers across every quarter in the chart, peaking at 22% in Q3 2024 before collapsing to negative 14% that same quarter and recovering only modestly since.
CEG has been the more durable comparison, holding operating margins between 7% and 22% over the eight quarters shown, while Vistra’s volatility has been sharper in both directions — touching negative 3% in Q1 2025 before the Q1 2026 recovery to 27%.
The competitive read is that Vistra’s operating leverage mechanism is real but weather-sensitive: CEG’s nuclear-heavy mix produced steadier margins across the cycle, while Vistra’s integrated gas-and-retail model amplifies both the upside and the downside of market conditions.
Is Vistra Stock Undervalued in 2026? TIKR’s $155 Target Says the Margin Story Has More to Prove
TIKR’s model values Vistra at around $155 by December 2030, implying roughly 5% total return from the current price of $148, or approximately 1% per year.
That measured target reflects a model that prices in steady-state margin performance rather than a step-change expansion, which means the operating leverage already demonstrated in Q1 2026 would need to sustain across full-year results for a more bullish case to build.
The thesis that matters most for this target to become too conservative is whether the 27% operating margin Vistra posted in Q1 2026 holds or expands through higher-load summer quarters, or whether a return to mild weather compresses it back toward the low teens seen in Q2 and Q4 of 2025.
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Should You Invest in Vistra Corp.?
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Pull up Vistra Corp. stock and you’ll see years of historical financials, what Wall Street analysts expect for revenue and earnings in the quarters ahead, how valuation multiples have moved over time, and whether price targets are trending up or down.
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What Did Vistra Say About Data Center Demand on the Q1 2026 Call?
CEO Jim Burke stated the company sees annual load growth of at least 5% to 6% through 2030 in ERCOT and 2% to 3% in PJM, driven by hyperscaler data center buildout, industrial electrification, and medium-sized commercial customers.
