Amphenol or Celestica: Which Stock Has More Upside?

CLS: Celestica logo
CLS
Celestica

Celestica surged 12% during the past Week. You may be tempted to buy more, or may want to reduce your exposure. But there is an entirely different perspective you might be missing. Is there a better alternative? Turns out, its peer Amphenol gives you more. Amphenol (APH) stock offers superior revenue growth across key periods, better profitability, and relatively lower valuation vs Celestica (CLS) stock, suggesting you may be better off investing in APH

  • APH’s quarterly revenue growth was 53.4%, vs. CLS’s 27.8%.
  • In addition, its Last 12 Months revenue growth came in at 47.4%, ahead of CLS’s 22.1%.
  • APH leads on profitability over both periods – LTM margin of 24.6% and 3-year average of 22.2%.

These differences become even clearer when you look at the financials side by side. The table highlights how CLS’s fundamentals stack up against those of APH on growth, margins, momentum, and valuation multiples.

Valuation & Performance Overview

  CLS APH Preferred
     
Valuation      
P/EBIT Ratio 36.6 32.5 APH
     
Revenue Growth      
Last Quarter 27.8% 53.4% APH
Last 12 Months 22.1% 47.4% APH
Last 3 Year Average 18.9% 20.7% APH
     
Operating Margins      
Last 12 Months 8.5% 24.6% APH
Last 3 Year Average 6.2% 22.2% APH
     
Momentum      
Last 3 Year Return 2695.2% 272.1% APH

Note: For “Last 3 Year Return” metric, preferred stock is one with higher returns unless the returns are too high (>300%) which creates risk of sell off.
See more revenue details: CLS Revenue Comparison | APH Revenue Comparison
See more margin details: CLS Operating Income Comparison | APH Operating Income Comparison

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See detailed fundamentals on Buy or Sell APH Stock and Buy or Sell CLS Stock. Below we compare market return and related metrics across years.

Historical Market Performance

  2020 2021 2022 2023 2024 2025 Total [1] Avg Best
Returns
CLS Return -2% 38% 1% 160% 215% 234% 3631%   <===
APH Return 22% 35% -12% 31% 41% 100% 439%    
S&P 500 Return 16% 27% -19% 24% 23% 18% 114%  
Monthly Win Rates [3]
CLS Win Rate 58% 67% 50% 67% 75% 58%   62%  
APH Win Rate 58% 75% 25% 58% 75% 75%   61%  
S&P 500 Win Rate 58% 75% 42% 67% 75% 73%   65% <===
Max Drawdowns [4]
CLS Max Drawdown -66% -12% -26% -6% -6% -28%   -24%  
APH Max Drawdown -37% -8% -28% -4% -5% -15%   -16%  
S&P 500 Max Drawdown -31% -1% -25% -1% -2% -15%   -12% <===

[1] Cumulative total returns since the beginning of 2020
[2] 2025 data is for the year up to 12/26/2025 (YTD)
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year

No matter how good the numbers, stock investment is never a smooth ride. There is a risk you must factor in. Read APH Dip Buyer Analyses and CLS Dip Buyer Analyses to see how these stocks have fallen and recovered in the past.

Still not sure about CLS or APH? Consider portfolio approach.

Portfolios Are The Smarter Way To Invest

Single stocks swing wildly but staying invested matters. A well built portfolio keeps you invested, captures upside and softens the blows from individual stocks

The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 – the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.