Today’s Top Volume Stocks: May 18, 2026 — T1 Energy Surges, NextEra Buys Dominion, NVDA Eyes Earnings
Monday, May 18 delivered one of the busiest trading sessions of the year, with historic M&A, an AI-solar momentum surge, and the entire market positioning ahead of NVIDIA’s blockbuster earnings on Wednesday. Here are the top volume stories driving the tape today.
1. Dominion Energy (D) +14% — The Biggest Power Deal in History
The headline of the day belongs to Dominion Energy (NYSE: D), which surged more than 14% after NextEra Energy (NYSE: NEE) confirmed a $67 billion all-stock acquisition — the largest power sector deal ever completed. Under the terms announced Monday morning, Dominion shareholders will receive 0.8138 shares of NextEra for each Dominion share they own, representing a roughly 21% premium to Dominion’s May 15 closing price. The transaction is expected to close in mid-to-late 2027, pending regulatory approvals.
The strategic logic is straightforward and enormous in scope. Dominion is the utility that powers northern Virginia — the world’s largest data center market, home to the AI infrastructure buildouts of Amazon, Microsoft, Google, and Meta. NextEra, already the world’s largest generator of wind and solar power, is acquiring direct control over the utility grid that feeds those data centers. The combined entity would be the world’s largest regulated electric utility by market capitalization, extending from Florida through Virginia and creating what the companies call “North America’s Premier Energy Infrastructure Platform.”
The AI data center electricity demand story — which has been a narrative tailwind for energy stocks all year — is no longer just a talking point. This $67 billion deal is the market putting real capital behind it. NextEra shares fell modestly on the announcement as is typical for acquirers in all-stock deals, while Dominion volume exploded as arbitrageurs, index funds, and retail traders all moved simultaneously.
2. T1 Energy (TE) +18% — AI Fund Triggers Solar Momentum Surge
T1 Energy (NYSE: TE) was the percentage mover of the day, surging as much as 19% intraday on a perfect storm of catalysts. The Austin, Texas-based solar manufacturer — formerly known as FREYR Battery before its February 2025 rebrand and pivot to U.S. solar manufacturing — reported Q1 2026 results showing higher net sales and a narrower net loss, clearing a low bar that momentum traders rewarded instantly.
But the real fuel came from a 13F filing by Situational Awareness LP — the investment fund of Leopold Aschenbrenner, a former OpenAI researcher turned AI infrastructure investor. His firm revealed a new 10 million share position worth approximately $43.9 million. The filing showed Aschenbrenner’s fund owns TE alongside NVIDIA, AMD, Intel, TSMC, and Micron — positioning T1 Energy as an AI infrastructure play via its role as a domestic solar energy supplier for data centers. Renaissance Technologies (+232%), Two Sigma (+221%), and BlackRock (+42%) also added heavily in Q1. Institutional ownership hit all-time highs. The stock ran from the mid-$5s to above $7 in premarket before settling in the mid-$6s on heavy volume. Key resistance sits at $7, support at $6.50.
3. NVIDIA (NVDA) — Earnings Eve Positioning Drives Volume
NVIDIA (NASDAQ: NVDA) was among the most active large-cap names on Monday as the market positioned ahead of Wednesday’s fiscal Q1 FY2027 earnings report — arguably the most anticipated earnings event of the year. The stock edged up 0.38% to around $226 in premarket and remained active throughout the session. KeyBanc raised its price target to $300 from $275, citing expectations of strong results and guidance bolstered by increasing Blackwell GPU shipments estimated at 150,000 to 200,000 quarter-over-quarter. Wall Street consensus expects $78.82 billion in revenue and $1.75 in EPS — both more than 75% higher year-over-year. The options market is pricing in a 5%+ move in either direction, representing over $260 billion in implied value at stake from a single report.
4. Bio-Rad Laboratories (BIO) +7.8% and Concentrix (CNXC) +6.7%
Two smaller names also saw significant volume spikes today. Bio-Rad Laboratories (NYSE: BIO) gained 7.8% on no specific headline, suggesting technical momentum and short-covering after a prolonged period of underperformance in the life sciences tools sector. Concentrix (NASDAQ: CNXC), a customer experience technology company, rallied 6.7% as investors rotated into beaten-down tech services names ahead of what many expect to be a more supportive macro environment in H2 2026 if the Fed moves on rates.
5. Regeneron Pharmaceuticals (REGN) -10.5% — Phase 3 Trial Failure
On the downside, Regeneron Pharmaceuticals (NASDAQ: REGN) was the day’s biggest large-cap loser, falling 10.5% after its Phase 3 trial for metastatic melanoma did not achieve statistical significance on its primary endpoint. Clinical trial binary events are among the most reliable volume catalysts in the market — when a major Phase 3 fails, institutional holders sell immediately and short sellers cover, creating enormous two-way volume. REGN’s move was consistent with that pattern, generating heavy volume as the stock gave back months of gains in a single session.
The Macro Backdrop
Monday’s session reflected a market that is simultaneously processing multiple major themes: AI infrastructure demand reshaping the energy sector (NextEra/Dominion, T1 Energy), NVIDIA earnings anticipation dominating large-cap tech, and ongoing tension between a resilient S&P 500 — up around 10% YTD at 7,404 — and a Nasdaq that slipped 0.34% as rates remain elevated. The 10-year Treasury yield hit its highest level in a year today, a headwind for high-multiple growth stocks that partially offset the positive earnings momentum in large-cap tech. Brent crude held above $109 per barrel amid continued U.S.-Iran conflict uncertainty, keeping energy stocks broadly in focus.
Wednesday’s NVIDIA print will set the tone for the rest of May. If NVDA beats and guides above $85 billion for Q2, expect a broad risk-on rally that lifts momentum names like TE alongside large-cap tech. If it disappoints, the rotation out of growth and into defensives — a trade that the NextEra/Dominion deal makes look very timely — could accelerate.
This article is for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.
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