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CLS vs FLEX
Which Stock Would AI Choose? Celestica (CLS) vs. Flex Ltd. (FLEX) Stock Comparison
Key Takeaways
- Both CLS and FLEX operate in the electronics manufacturing services (EMS) sector with significant exposure to artificial intelligence (AI) infrastructure and data center markets.
- CLS reported robust first-quarter 2026 revenue growth of 53% year-over-year and raised its full-year 2026 revenue guidance to $19 billion, reflecting strong demand in cloud and AI segments.
- FLEX achieved inclusion in the S&P 500 Index in June 2026 and delivered record adjusted operating margins in fiscal 2026, supported by AI-related partnerships and revenue expansion.
- Recent market activity shows both stocks experiencing volatility amid broader technology sector movements, with FLEX posting substantial year-to-date gains prior to a pullback in late July 2026.
- Key contrasts include CLS’s emphasis on high-complexity solutions versus FLEX’s broader scale and diversified customer base across multiple end markets.
- Upcoming second-quarter earnings releases for both companies in late July 2026 provide near-term catalysts for assessing relative momentum and guidance updates.
Introduction
Celestica Inc. (CLS) and Flex Ltd. (FLEX) represent two prominent players in the electronics manufacturing services industry, both benefiting from surging demand in artificial intelligence and data center infrastructure. This comparison examines their business models, recent performance trends, and market positioning to assist institutional investors, active traders, and portfolio managers evaluating relative opportunities within the technology hardware supply chain. The analysis draws on observable financial metrics, sector developments, and sentiment indicators from the past several weeks, providing a factual framework for assessing trade-offs in growth profiles, operational scale, and risk exposures without forward-looking projections.
CLS Overview and Recent Performance
Celestica Inc. specializes in electronics manufacturing services, offering design, engineering, and supply-chain solutions primarily for original equipment manufacturers in communications, cloud computing, and industrial markets. The company has positioned itself as a key supplier in AI infrastructure, delivering complex hardware for data centers and networking applications. In recent weeks, CLS stock has reflected broader technology sector dynamics, with performance influenced by strong first-quarter results that included 53% year-over-year revenue growth to $4.05 billion and an adjusted operating margin of 8.0%. Management raised full-year 2026 guidance to $19 billion in revenue, underscoring sustained customer demand. Sentiment has remained constructive around AI exposure, though the shares experienced some consolidation amid market-wide volatility ahead of the second-quarter earnings release scheduled for late July 2026.
FLEX Overview and Recent Performance
Flex Ltd. provides electronics manufacturing services with a wide-ranging portfolio spanning consumer electronics, automotive, healthcare, and industrial sectors, while expanding its footprint in AI infrastructure and data centers. Recent market activity for FLEX has been shaped by its addition to the S&P 500 Index in June 2026 and ongoing partnerships in AI hardware production. The company reported fiscal 2026 results with net sales of $27.9 billion, up 8% year-over-year, and achieved record adjusted operating margins. In recent weeks, the stock posted notable year-to-date appreciation before a pullback in late July amid earnings anticipation and sector rotation. Second-quarter fiscal 2027 results are slated for release on July 29, 2026, with analysts noting expectations for continued revenue expansion driven by compute and AI workloads.
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Head-to-Head Comparison
In business model terms, CLS emphasizes high-complexity, lower-volume manufacturing tailored to advanced technology applications, while FLEX operates at greater scale with broader diversification across end markets. Growth drivers for both center on AI infrastructure, yet CLS has highlighted accelerated revenue momentum in its most recent reported quarter, contrasting with FLEX’s emphasis on margin expansion and index inclusion. Recent momentum shows FLEX with stronger cumulative year-to-date returns prior to volatility, whereas CLS has demonstrated pronounced percentage gains tied to earnings beats and guidance lifts. Risk factors include supply-chain dependencies and customer concentration for both, with FLEX carrying additional considerations around its larger balance sheet and global footprint. Sector exposure remains similar, though market sentiment has alternately favored each name based on specific catalysts such as index additions or earnings visibility. Trade-offs center on CLS’s higher growth velocity versus FLEX’s established scale and liquidity profile.
Tickeron AI Verdict
Based on observable factors including trend consistency in AI-driven segments, recent earnings momentum, and relative positioning within the EMS sector, Tickeron’s AI models currently assign a modest probabilistic edge to CLS over FLEX. This assessment reflects stronger reported revenue growth and guidance revisions in the most recent period, alongside sustained demand signals in high-complexity AI applications. However, outcomes remain contingent on upcoming earnings data, broader market conditions, and execution on shared industry tailwinds, underscoring the probabilistic rather than deterministic nature of model outputs.
Disclaimer
The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.
To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is CLS is a StrongBuy and FLEX is a StrongBuy.
Long-Term Analysis
It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).
CLS’s FA Score shows that 2 FA rating(s) are green whileFLEX’s FA Score has 2 green FA rating(s).
- CLS’s FA Score: 2 green, 3 red.
- FLEX’s FA Score: 2 green, 3 red.
Short-Term Analysis
It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.
If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.
CLS’s TA Score shows that 5 TA indicator(s) are bullish while FLEX’s TA Score has 4 bullish TA indicator(s).
- CLS’s TA Score: 5 bullish, 3 bearish.
- FLEX’s TA Score: 4 bullish, 5 bearish.
Price Growth
CLS (@Electronic Components) experienced а +8.57% price change this week, while FLEX (@Electronic Components) price change was -4.02% for the same time period.
The average weekly price growth across all stocks in the @Electronic Components industry was -2.35%. For the same industry, the average monthly price growth was -15.65%, and the average quarterly price growth was +8.45%.
Reported Earning Dates
CLS is expected to report earnings on Oct 26, 2026.
FLEX is expected to report earnings on Nov 04, 2026.
Industries' Descriptions
@Electronic Components (-2.35% weekly)The Electronic Components industry produces electronic equipment for industries and consumer electronics products, such as mobile devices, televisions, and circuit boards. TE Connectivity Ltd, for example, is a company that designs and manufactures connectivity and sensor products for harsh environments in various industries, such as automotive, industrial equipment, aerospace, and oil & gas. Another major player, Corning Inc., makes advanced optics including end-to-end fiber and wireless solutions for communications networks along with various other technologies catering to industrial and scientific applications.
| CLS | FLEX | CLS / FLEX | |
| Capitalization | 38.1B | 41.7B | 91% |
| EBITDA | 1.36B | 2.06B | 66% |
| Gain YTD | 12.121 | 88.265 | 14% |
| P/E Ratio | 36.40 | 43.92 | 83% |
| Revenue | 13.8B | 29.3B | 47% |
| Total Cash | 536M | 2.84B | 19% |
| Total Debt | 810M | 5.93B | 14% |
CLS | FLEX | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 81 | 50 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 60 Fair valued | 54 Fair valued | |
PROFIT vs RISK RATING 1..100 | 24 | 28 | |
SMR RATING 1..100 | 20 | 49 | |
PRICE GROWTH RATING 1..100 | 50 | 37 | |
P/E GROWTH RATING 1..100 | 78 | 9 | |
SEASONALITY SCORE 1..100 | 50 | 44 |
Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.
FLEX's Valuation (54) in the Electronic Components industry is in the same range as CLS (60). This means that FLEX’s stock grew similarly to CLS’s over the last 12 months.
CLS's Profit vs Risk Rating (24) in the Electronic Components industry is in the same range as FLEX (28). This means that CLS’s stock grew similarly to FLEX’s over the last 12 months.
CLS's SMR Rating (20) in the Electronic Components industry is in the same range as FLEX (49). This means that CLS’s stock grew similarly to FLEX’s over the last 12 months.
FLEX's Price Growth Rating (37) in the Electronic Components industry is in the same range as CLS (50). This means that FLEX’s stock grew similarly to CLS’s over the last 12 months.
FLEX's P/E Growth Rating (9) in the Electronic Components industry is significantly better than the same rating for CLS (78). This means that FLEX’s stock grew significantly faster than CLS’s over the last 12 months.
| CLS | FLEX | |
|---|---|---|
| RSI ODDS (%) | 4 days ago 80% | 4 days ago 90% |
| Stochastic ODDS (%) | 4 days ago 74% | 4 days ago 81% |
| Momentum ODDS (%) | 4 days ago 84% | 4 days ago 74% |
| MACD ODDS (%) | 4 days ago 81% | N/A |
| TrendWeek ODDS (%) | 4 days ago 84% | 4 days ago 64% |
| TrendMonth ODDS (%) | 4 days ago 70% | 4 days ago 66% |
| Advances ODDS (%) | 7 days ago 84% | 4 days ago 77% |
| Declines ODDS (%) | 11 days ago 72% | 6 days ago 61% |
| BollingerBands ODDS (%) | 4 days ago 80% | 4 days ago 90% |
| Aroon ODDS (%) | 4 days ago 70% | 4 days ago 58% |
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FLEX and
Correlation & Price change
A.I.dvisor indicates that over the last year, FLEX has been loosely correlated with BHE. These tickers have moved in lockstep 66% of the time. This A.I.-generated data suggests there is some statistical probability that if FLEX jumps, then BHE could also see price increases.
| Ticker / NAME | Correlation To FLEX | 1D Price Change % | ||
|---|---|---|---|---|
| FLEX | 100% | +1.64% | ||
| BHE - FLEX | 66% Loosely correlated | +0.44% | ||
| TTMI - FLEX | 60% Loosely correlated | -0.06% | ||
| PLXS - FLEX | 59% Loosely correlated | +3.86% | ||
| LFUS - FLEX | 58% Loosely correlated | +0.03% | ||
| VICR - FLEX | 54% Loosely correlated | +0.34% | ||
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