The stock market started the week on a high note, with the Dow Jones Industrial Average gaining 85 points, or 0.41%. The S&P 500 and Nasdaq each delivered similar gains to close at all-time highs today, driven partly by a spike in the price of crude oil following an agreement between Saudi Arabia and Russia to "do whatever it takes to achieve the desired goal of stabilizing the market," the latter country's energy ministry stated.

But a few individual stocks soared even higher than the overall market today, including FireEye (NASDAQ:FEYE), Patheon (NYSE: PTHN), and Vista Outdoor (NYSE:VSTO). Read on to learn what drove these unusual jumps.

Lock on a circuit board, cybersecurity visual

Image source: Getty Images.

FireEye catches one analyst's eye

Shares of cybersecurity specialist FireEye climbed 7.5% today after encouraging comments on the company and its industry from Goldman Sachs analyst Gabriela Borges.

On the heels of the recent cyberattack from ransomware virus WannaCry, which infected an estimated 300,000 computers worldwide over the past few days, Borges predicted FireEye's incident response business would enjoy a relative "uptick in demand given its best-in-class reputation." 

"Ransomware has been gaining traction as an attack method over the last several years because of its low cost to implement," Borges elaborated, "but this attack is unique in its breadth."

Shares of FireEye most recently jumped more than 13% in a single day earlier this month after the company announced stronger-than-expected first-quarter results, including solid customer additions and a narrower net loss as it makes progress toward its goal of sustained profitability. As prominent cyberattacks like WannaCry spur the need for FireEye's products and services, I suspect it should have little trouble reaching that goal in time.

Patheon pairs off

Patheon stock skyrocketed 33.1% today after the drug development and delivery solutions company announced it has agreed to be acquired by Thermo Fisher Scientific (NYSE:TMO) for $35 per share in cash. That represents a 34.6% premium to Patheon's closing price on Friday, and values the company at $7.2 billion, including Thermo Fisher's assumption of roughly $2.0 billion of net debt. 

"Over the past several years, we have increased our capabilities to become a leading CDMO provider in a highly fragmented market," stated Patheon CEO James Mullen. "We are confident that our combined offerings and Thermo Fisher's proven track record of disciplined M&A and successful integrations will take our business to the next level."

The deal is expected to close by the end of this year, but is still subject to regulatory approvals and the adoption of "certain resolutions relating to the transaction" by Patheon shareholders. With shares trading just 1% below the agreed acquisition price -- and unless waiting to sell would result in more favorable capital gains tax treatment -- I think Patheon investors would do well to take their profits and put them to work elsewhere.

Vista Outdoor's C-suite shakeup

Finally, shares of Vista Outdoor rose 5.2% on Monday after the outdoor sports and recreation products company appointed Kenny Bement as vice president and corporate controller, effective today. On June 5, 2017, Bement will also assume the role of chief accounting officer from Tom Sexton, who announced his impending retirement earlier this year. Bement, for his part, most recently served as controller of reporting and governance for Google parent Alphabet. Before that, he oversaw SEC reporting, corporate accounting, and accounting policies at Raytheon, and worked for almost five years on the staff of the U.S. Financial Accounting Standards Board.

If you're wondering why the market is excited about this particular executive addition, recall shares of Vista Outdoor plunged nearly 30% in February after retail weakness and headwinds in its hunting and shooting accessories segment triggered an evaluation of goodwill. In turn, that evaluation resulted in a massive $449 million non-cash goodwill impairment charge. 

Vista Outdoor investors are right to celebrate bringing an experienced accounting executive like Bement on board with the hope of avoiding such situations in the future.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.