Ten stocks kicked off the shortened trading week with strong gains, mirroring Wall Street’s three major indices, as investors continued to digest a flurry of corporate developments, including earnings and acquisitions, among others.
Meanwhile, the Nasdaq led gains among the three major indices, jumping 0.14 percent. The S&P 500 followed with a 0.10 percent gain, while the Dow Jones grew by 0.07 percent.
Indices aside, we spotlight the 10 top-performing stocks on Tuesday and detail the reasons behind their gains.
To come up with the list, we considered only the stocks with a $2 billion market capitalization and 5 million shares in trading volume.
The New York Stock Exchange building. Photo by Дмитрий Трепольский on Pexels
10. Fiserv Inc. (NASDAQ:FISV)
Fiserv grew its share prices by 6.89 percent on Tuesday to finish at $63.45 apiece as investors mirrored an activist group’s acquisition of a significant stake in a bid to boost share value.
An exclusive report by the Wall Street Journal said that activist investor Jana Partners gobbled up shares in Fiserv Inc. (NASDAQ:FISV) as it eyes to push operational changes, including the review and exit of businesses that are not contributing to the company’s growth trajectory.
The size of the transaction, however, was not divulged.
Fiserv Inc. (NASDAQ:FISV) CEO Mike Lyons also earned the backing of the investment firm over his plans to improve execution and reshuffle the board of directors.
In a statement to WSJ, a spokesperson from Fiserv Inc. (NASDAQ:FISV) said that the company has engaged with many of its shareholders during the past several months, including Jana Partners, noting that it values shareholder perspectives as it drives progress through its One Fiserv action plan.
Jana Partners has been privately urging the financial technology firm to focus on accelerating growth in its core banking business, as it believes that it could largely capitalize on strong spending trends in the banking sector.
9. Ondas Inc. (NASDAQ:ONDS)
Ondas Inc. rallied for a second day on Tuesday, jumping 7.95 percent to finish at $10.05 apiece as investors took heart from a new multi-billion-dollar market potential in Europe following the successful deployment of its drone solutions to the German State Police.
In a statement, Ondas Inc. (NASDAQ:ONDS) said that its subsidiary, Sentrycs, delivered C-UAS Solutions to the German authorities in a bid to support the detection, identification, and control of unauthorized drones without jamming or kinetic engagement.
Ondas Inc. (NASDAQ:ONDS) said that the technology was engineered for the demands of modern policing such as providing precision mitigation by taking control of unauthorized drones and guiding them to predefined landing zones, identifying serial numbers and operator locations in real time, as well as enabling a comprehensive, intelligence-driven response.
The deployment followed heightened concerns over drone activity in Germany, with more than 1,000 suspicious flights reported by the federal criminal police (BKA) in 2025, including incidents near military facilities, airports, and sensitive government zones.
Meanwhile, Sentrycs is also set to launch its new man-carried system called Scout at the Enforce Tac exhibition in Germany.
Designed for law enforcement and tactical forces, Scout enables rapid deployment of passive detection, tracking, identification, and cyber-based mitigation in a lightweight, man-portable format – without reliance on fixed infrastructure.
8. Under Armour Inc. (NYSE:UA)
Under Armour rallied for a third straight day on Tuesday, jumping 8.18 percent to finish at $7.54 apiece as investors resumed buying positions following the launch of its final signature shoe under the Curry brand lineup before parting ways with NBA superstar Stephen Curry.
Called the Curry 13, Under Armour Inc. (NYSE:UA) launched the new product on Friday, saying that it signifies “a milestone moment, a collectible finale, and a tribute to a partnership that helped reshape modern basketball footwear and the game.”
Under Armour Inc. (NYSE:UA) announced in November last year that it was officially ending its partnership with Curry, effective November 13, after more than a decade.
Upon termination, the NBA superstar will keep all his intellectual property, allowing him to bring the Curry brand to other manufacturers in the future.
Earlier this month, Under Armour Inc. (NYSE:UA) announced that it swung to a net loss of $430.8 million in the third quarter of fiscal year 2026, versus a $1.2 million net income in the same period a year earlier.
Net revenues dipped by 7 percent to $1.3 billion from $1.4 billion year-on-year.
7. Waystar Holding Corp. (NASDAQ:WAY)
Waystar saw its share prices jump by 8.48 percent on Tuesday to close at $24.31 apiece as investors cheered its swing to profitability and a double-digit growth outlook for this year.
In an updated report, Waystar Holding Corp. (NASDAQ:WAY) said that it swung to a net income of $112 million last year, reversing a $19 million net loss in 2024.
Revenues broke past the $1 billion level at $1.099 billion, marking a 16 percent jump from $943.5 million year-on-year.
In the fourth quarter alone, Waystar Holding Corp. (NASDAQ:WAY) netted $19.99 million, or 4.8 percent higher than the $19.08 million in the same quarter a year earlier. Revenues were at $303.5 million, marking a 24 percent jump from $244 million year-on-year.
For 2026, Waystar Holding Corp. (NASDAQ:WAY) is gunning for a 20.6 percent to 27 percent jump in non-GAAP net income, at $317 million to $335 million, versus a non-GAAP net income of $262.9 million in 2025.
Revenues are targeted at a range of $1.274 billion to $1.294 billion, or an implied growth of 16 percent to 17.7 percent year-on-year.
Adjusted EBITDA is expected at $530 million to $540 million, or 14.7 percent to 16.8 percent higher than the $462.1 million in the same comparable period.
“We are leading healthcare’s AI transformation by advancing the autonomous revenue cycle, leveraging unmatched proprietary data and deep domain expertise to deliver meaningful outcomes for providers. Our 2026 guidance reflects a robust pipeline, accelerating demand for an end-to-end AI-powered platform, and disciplined execution to sustain durable, profitable growth,” said CEO Matt Hawkins.
6. Kyndryl Holdings Inc. (NYSE:KD)
Kyndryl Holdings rallied for a second day on Tuesday, jumping 11.03 percent to finish at $13.59 apiece as investors resumed buying positions following the successful submission of its delayed quarterly and annual filings.
In a statement, Kyndryl Holdings Inc. (NYSE:KD) disclosed material weakness in its internal control over financial reporting related to its disclosure processes and cash management practices, among others.
However, it said that it has successfully submitted its quarterly report for the quarter ending December 2025, filed amendments to its annual report for the fiscal year ending March 2025, as well as quarters ending June and September 2025.
“The company’s financial position remains strong. Kyndryl’s global team remains laser-focused on delivering mission-critical services for customers and meeting its multi-year performance objectives,” Kyndryl Holdings Inc. (NYSE:KD) said.
In the third quarter ending December 2025, the company dropped its net income by 73 percent to $57 million from $215 million in the same period a year earlier. Revenues inched up by 3.2 percent to $3.86 billion from $3.7 billion year-on-year.
For the full fiscal year, Kyndryl Holdings Inc. (NYSE:KD) is targeting an adjusted EBITDA margin of 17.5 percent.
5. Norwegian Cruise Line Holdings Ltd. (NYSE:NCLH)
Norwegian Cruise saw its share prices jump by 12.15 percent on Tuesday to finish at $24.10 apiece as investors mimicked an activist group’s acquisition of a 10 percent stake in the company.
Elliott Management disclosed on the same day that it acquired a significant stake in Norwegian Cruise Line Holdings Ltd. (NYSE:NCLH), in line with its plans to push changes to its board and management to turn around the cruise operator.
According to Elliott, the current board of directors has failed to fulfill its fundamental responsibilities while criticizing the appointment of former Subway Restaurant boss, John Chidsey, as its CEO.
“We are committed to delivering durable, long-term value creation, which will be led by our recently appointed CEO, John Chidsey,” Norwegian Cruise Line Holdings Ltd. (NYSE:NCLH) said in a statement.
Elliott said that it expects to reach a constructive resolution with the cruise operator, adding that it is ready to take the case directly to shareholders.
Compared with its rivals Royal Caribbean and Carnival Corp., Norwegian Cruise Line Holdings Ltd. (NYSE:NCLH) has been experiencing challenges related to costs, stiff competition, and weak demand.
4. National Energy Services Reunited Corp. (NASDAQ:NESR)
National Energy Services soared to a new all-time high on Tuesday after beating earnings expectations last year.
At intra-day trading, the stock climbed to its highest price of $24.30 before trimming gains to finish the session just up by 16.03 percent at $24.17 apiece.
In an updated report, National Energy Services Reunited Corp. (NASDAQ:NESR) said that it was able to grow its revenues in the fourth quarter of last year by 15.9 percent to $398 million from $343.68 million in the same period a year earlier. The figure also beat analyst expectations of $368.54 million.
Net income, however, fell by 70.9 percent to $7.8 million from $26.8 million year-on-year, amid non-cash impairment charges on two small technology investments, additional current expected credit loss provisions, mobilization-related restructuring costs in Oman, and other write-offs and provisions largely related to a vendor bankruptcy and resulting provision for a construction-in-process prepayment previously made in Saudi Arabia.
Adjusted earnings per share stood at $0.32, higher than the $0.25 expected by analysts.
“We are very pleased with our fourth quarter results, which cap another year of disciplined execution and strategic progress for NESR. The quarter follows the announcement of several significant contract awards, most notably our integrated unconventional completions scope in Saudi Arabia’s Jafurah development, which further reinforces our long-standing partnership with Aramco and our role in enabling world-class unconventional operations in the Kingdom,” said National Energy Services Reunited Corp. (NASDAQ:NESR) Chairman and CEO Sherif Foda, adding that it sees strong momentum beyond Saudi Arabia.
3. eToro Group Ltd. (NASDAQ:ETOR)
eToro grew its share prices by 20.43 percent on Tuesday to finish at $33.07 apiece as investors gobbled up shares following a strong earnings performance and news of a higher buyback program.
In an updated report, eToro Group Ltd. (NASDAQ:ETOR) said that it grew its net income last year by 12 percent to $215.7 million from $192.38 million in 2024. Total revenues jumped by 9.5 percent to $13.8 billion from $12.6 billion.
In the fourth quarter alone, net income surged by 16 percent to $68.7 million from $59.2 million, despite revenues falling by 33 percent to $3.87 billion from $5.8 billion.
“Our fourth quarter results reflect the strength and resilience of our multi-asset business model. We delivered compelling financial performance through a combination of diversified revenue streams, healthy funded accounts growth, and disciplined financial management,” said eToro Group Ltd. (NASDAQ:ETOR) Chief Finance Officer Meron Shani.
“Furthermore, we are off to a strong start to 2026 with our January capital markets KPIs demonstrating the ability of our platform to adapt and perform across all different market conditions, including the recent spike in commodities trading. With our strong balance sheet and a clear execution roadmap, we believe that we are well-positioned to deliver accelerated growth in 2026,” he noted.
In other news, eToro Group Ltd. (NASDAQ:ETOR) also announced plans to raise its existing share buyback program by another $100 million, bringing the total to $250 million.
As of writing, the company has successfully spent $100 million of the total allocation.
2. ZIM Integrated Shipping Services Ltd. (NYSE:ZIM)
ZIM Integrated rallied to an over three-year high on Tuesday, as investors gobbled up shares following news that it was set to be acquired by German shipping giant Hapag-Lloyd AG for $4.2 billion.
In a statement, ZIM Integrated Shipping Services Ltd. (NYSE:ZIM) said that it has entered into a definitive merger agreement, under which Hapag-Lloyd would acquire its shares at $35 apiece. The amount represented a 58 percent premium over its price on February 13.
The companies expect to close the transaction late this year, subject to regulatory approvals, including those of its shareholders.
“I am incredibly proud of the strategic transformation we have executed at ZIM over recent years, which has generated exceptional value for our shareholders,” said ZIM Integrated Shipping Services Ltd. (NYSE:ZIM) President and CEO Eli Glickman.
“Since I joined the company in 2017, ZIM has progressed from a position of negative equity to become an industry leader with strong financial and operational performance. Since our IPO in January 2021, we have distributed an extraordinary $5.7 billion in dividends to shareholders. Upon completion of this transaction, total capital returned will be approximately $10 billion, representing more than five times the company’s initial market value five years ago, or approximately 45 times the capital raised at the IPO,” he noted.
1. Masimo Corporation (NASDAQ:MASI)
Masimo Corp. snapped a two-day losing streak on Tuesday, soaring 34.22 percent to finish at $174.69 apiece as investors snapped up shares following news that it was set to merge with Danaher Corp. for $9.9 billion.
In a statement, Masimo Corporation (NASDAQ:MASI) said that it officially inked a definitive agreement with Danaher for the acquisition of its shares at a price of $180 apiece. The amount represented a 38.3 percent premium over its closing price of $130.15 on Friday, February 13.
The transaction is expected to be closed in the second half of the year, subject to closing conditions.
Upon completion, Masimo Corporation (NASDAQ:MASI) will continue to be a standalone business unit and brand within Danaher’s Diagnostics segment and will operate autonomously.
“We look forward to joining Danaher and continuing our growth and momentum as the global leader in patient monitoring. Danaher shares our commitment to investing in talent and innovation and will be an ideal fit to help power the next chapter of Masimo. Importantly, becoming part of Danaher’s Diagnostics segment will strengthen our ability to scale our monitoring technologies globally and accelerate our mission of delivering Masimo innovations that empower clinicians to transform patient care,” said Masimo Corporation (NASDAQ:MASI) CEO Katie Szyman.
Masimo will report its earnings performance in the fourth quarter and full-year 2025 on February 26, but will not host an earnings call due to the transaction.
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