As the Q3 earnings season comes to a close, it’s time to take stock of this quarter’s best and worst performers in the electronic components & manufacturing industry, including Plexus (NASDAQ: PLXS) and its peers.
The sector could see higher demand as the prevalence of advanced electronics increases in industries such as automotive, healthcare, aerospace, and computing. The high-performance components and contract manufacturing expertise required for autonomous vehicles and cloud computing datacenters, for instance, will benefit companies in the space. However, headwinds include geopolitical risks, particularly U.S.-China trade tensions that could disrupt component sourcing and production as the Trump administration takes an increasingly antagonizing stance on foreign relations. Additionally, stringent environmental regulations on e-waste and emissions could force the industry to pivot in potentially costly ways.
The 10 electronic components & manufacturing stocks we track reported an exceptional Q3. As a group, revenues beat analysts’ consensus estimates by 4.9% while next quarter’s revenue guidance was 4.1% above.
Amidst this news, share prices of the companies have had a rough stretch. On average, they are down 16% since the latest earnings results.
Best Q3: Plexus (NASDAQ: PLXS)
With over 20,000 team members across 26 global facilities, Plexus (NASDAQ: PLXS) designs, manufactures, and services complex electronic products for companies in aerospace/defense, healthcare, and industrial sectors.
Plexus reported revenues of $1.43 billion, up 34.8% year on year. This print exceeded analysts’ expectations by 4.9%. Overall, it was a stunning quarter for the company with an impressive beat of analysts’ EPS guidance for next quarter estimates and revenue guidance for next quarter exceeding analysts’ expectations.
Mr. Kelsey concluded, “We are guiding fiscal first quarter revenue of $1.410 to $1.460 billion, up 1% sequentially and 34% year over year at the midpoint, with non-GAAP operating margin of 6.0% to 6.4% and non-GAAP EPS of $2.46 to $2.63. For fiscal 2027, we anticipate continued expansion in revenue and profitability, driven by market sector strength, program ramps and share gains while sustaining our investments in people, operational efficiency and technology. We now expect mid- to upper-teens revenue growth with increasing operating margin and sustained working capital efficiency. Finally, through our aligned focus on innovation and our continuous improvement culture, Plexus is creating customer success, scaling the company for the future and developing substantial long-term efficiencies that we expect to generate robust financial returns and shareholder value.”
Investor expectations, however, were likely higher than Wall Street’s published projections, leaving some wishing for even better results (analysts’ consensus estimates are those published by big banks and advisory firms, not the investors who make buy and sell decisions). The stock is down 21.6% since reporting and currently trades at $187.62.
Amphenol (NYSE: APH)
With over 90 years of connecting the world's technologies, Amphenol (NYSE: APH) designs and manufactures connectors, cables, sensors, and interconnect systems that enable electrical and electronic connections across virtually every industry.
Amphenol reported revenues of $10.23 billion, up 65.1% year on year, outperforming analysts’ expectations by 7.4%. The business had a stunning quarter with an impressive beat of analysts’ EPS guidance for next quarter estimates and revenue guidance for next quarter exceeding analysts’ expectations.
Amphenol pulled off the fastest revenue growth and highest full-year guidance raise among its peers. Although it had a fine quarter compared to its peers, the market seems unhappy with the results as the stock is down 7.3% since reporting. It currently trades at $72.90.
Is now the time to buy Amphenol? Access our full analysis of the earnings results here, it’s free.
Weakest Q3: TTM Technologies (NASDAQ: TTMI)
As one of the world's largest printed circuit board manufacturers with facilities spanning North America and Asia, TTM Technologies (NASDAQ: TTMI) manufactures printed circuit boards (PCBs) and radio frequency (RF) components for aerospace, defense, automotive, and telecommunications industries.
TTM Technologies reported revenues of $1.20 billion, up 59.9% year on year, exceeding analysts’ expectations by 7.3%. It may have had the worst quarter among its peers, but its results were still good as it also locked in a beat of analysts’ EPS estimates and revenue guidance for next quarter meeting analysts’ expectations.
TTM Technologies delivered the weakest guidance update in the group. As expected, the stock is down 37.8% since the results and currently trades at $63.57.
Read our full analysis of TTM Technologies’s results here.
Rogers (NYSE: ROG)
With roots dating back to 1832, making it one of America's oldest continuously operating companies, Rogers (NYSE: ROG) designs and manufactures specialized engineered materials and components used in electric vehicles, telecommunications, renewable energy, and other high-performance applications.
Rogers reported revenues of $236.1 million, up 9.3% year on year. This print lagged analysts’ expectations by 0.8%. Taking a step back, it was still a very strong quarter as it produced a beat of analysts’ EPS estimates and an impressive beat of analysts’ EPS guidance for next quarter estimates.
Rogers had the weakest performance against analyst estimates of the whole group. The stock is down 13.8% since reporting and currently trades at $115.67.
Read our full, actionable report on Rogers here, it’s free.
Knowles (NYSE: KN)
With roots dating back to 1946 and a focus on components that must perform flawlessly in critical situations, Knowles (NYSE: KN) designs and manufactures specialized electronic components like high-performance capacitors, microphones, and speakers for medical technology, defense, and industrial applications.
Knowles reported revenues of $184 million, up 20.3% year on year. This number topped analysts’ expectations by 6.9%. It was a stunning quarter as it also put up an impressive beat of analysts’ EPS guidance for next quarter estimates and revenue guidance for next quarter exceeding analysts’ expectations.
The stock is down 9.2% since reporting and currently trades at $30.32.
Read our full, actionable report on Knowles here, it’s free.
Market update
Over the past year, investors have been forced to repeatedly answer the same question: what is the market’s biggest risk? The answer has changed several times, and each shift has reshaped market leadership.
Late in 2025 and early 2026, artificial intelligence became the market’s primary uncertainty. Investors questioned whether AI would erode software pricing power and weaken competitive moats as AI made it easier to replicate once-differentiated products.
By the spring, technology took a back seat to geopolitics. The U.S. conflict with Iran briefly became the market’s dominant narrative, raising concerns about oil prices, inflation, and global growth. But as energy markets remained orderly and fears of a prolonged supply disruption faded, investors quickly turned their focus back to fundamentals.
Want to invest in winners with rock-solid fundamentals? Check out our Strong Momentum Stocks and add them to your watchlist. These companies are poised for growth regardless of the political or macroeconomic climate.
