This week, which stocks lagged or dragged? Weekly Winners column keeps up with market trends, helping Tigers sort out the week's hottest sectors, stock winners and important news.

Below are the top 10 S&P 500 stock gainers for the week ended May 9:

Insulet Stock Soars To A High After Robust Earnings; This Customer Management Name Pops

Insulet stock surged around 21% on Friday.

The medical device maker topped first-quarter profit and sales estimates late Thursday. It also raised its second-quarter and full-year 2025 revenue guidance, both above forecasts.

Its first quarter earnings increased 67% on 29% sales growth. Projections show quarterly sales rising an average 17% over the next four quarters. Meanwhile, full-year 2025 earnings forecasts call for a 30% rise, followed by a 24% increase in 2026.

Microchip Stock Jumps as Analysts Raise Price Targets on Strong Outlook

Microchip Technology shares surged Friday after the struggling chipmaker issued a better-than-expected forecast, and several analysts raised their price targets for the stock. 

The company said it anticipates fiscal first-quarter revenue of $1.02 billion to $1.07 billion and adjusted earnings per share of 18 cents to 26 cents, exceeding analysts' projections.

“It looks like the bottom has finally been hit,” Jefferies analysts said following the results, adding, “we see the potential for a sharp snap back in the next couple of quarters” after the company posted a steep revenue decline in the fourth quarter. The analysts maintained a "buy" rating and price target of $70. 

Citi analysts, which raised their target to $55 from $50, said, “when the economy eventually recovers, Microchip should have the strongest bounce in fundamentals given the steep decline in revenue.” Meanwhile, Bank of America raised its target to $56 from $44 and upgraded the stock to “neutral” from “underperform.”

Disney Stock Jumps on Strong Results, Abu Dhabi Park Announcement

Shares of The Walt Disney surged Wednesday after the media and entertainment giant's fiscal second-quarter results came in better than analysts had expected.

Disney reported adjusted earnings per share (EPS) of $1.45 on revenue of $23.62 billion. Analysts had expected $1.20 and $23.17 billion, respectively.

"Following an excellent first half of the fiscal year, we have a lot more to look forward to, including our upcoming theatrical slate, the launch of ESPN’s new DTC offering, and an unprecedented number of expansion projects underway in our Experiences segment," CEO Bob Iger said. "Overall, we remain optimistic about the direction of the company and our outlook for the remainder of the fiscal year."

Separately on Wednesday, Disney announced a partnership with Abu Dhabi-based developer Miral to build its seventh theme park on Yas Island in the capital of the United Arab Emirates. The companies said that Disney will lead the creative efforts, while the resort will be built and operated by Miral.

Enphase Energy’s Stock Soars Amid Product Innovations

Enphase Energy has experienced a notable stock price increase of 11% over the past week.

The company has been proactive in expanding its product offerings, which has contributed to the positive market sentiment. Enphase Energy recently launched new software that allows homeowners to upgrade their solar systems with the latest IQ8 Microinverters, enhancing solar capacity. Additionally, the introduction of the IQ Balcony Solar System in Germany provides an innovative solution for generating clean energy in limited spaces, further boosting investor confidence.

Enphase Energy’s commitment to expanding its manufacturing capabilities in the U.S. has also played a role in its stock price surge. The company has shipped over 6.5 million IQ Microinverters and 50 MWh of IQ Batteries, with a significant portion featuring higher domestic content. This strategic move not only supports the company’s growth but also aligns with incentives like the Domestic Content Bonus Credit, making Enphase Energy an attractive option for investors looking for growth in the renewable energy sector.

Paycom Stock Gains as Q1 Earnings and Revenues Beat Estimates

Paycom shares gained 9% on Thursday after the company reported better-than-expected first-quarter 2025 results. The online payroll and human resource technology provider reported non-GAAP earnings of $2.80 per share, which beat the Zacks Consensus Estimate of $2.60.

Moreover, the bottom line increased 8% year over year, mainly driven by higher revenues, operating efficiency and lower share counts. Paycom has an impressive earnings surprise history. It beat on earnings in each of the trailing four quarters, the average surprise being 7.5%.

Paycom reported revenues of $530.5 million, which outpaced the consensus mark of $525.6 million. The top line increased 6.1% year over year, primarily benefiting from increased sales momentum, international expansion and artificial intelligence (AI) integration in its products.