Advertisement
CLS vs GLW
Which Stock Would AI Choose? Celestica (CLS) vs. Corning (GLW) Stock Comparison
Key Takeaways
- Both CLS and GLW are leveraged to the artificial intelligence (AI) infrastructure build-out but occupy different links in the supply chain — electronics manufacturing versus optical materials.
- CLS has delivered explosive revenue growth (up over 60% year over year in recent quarters) but carries concentrated customer risk, with a large share of revenue tied to a few hyperscale cloud providers.
- GLW offers a more diversified, 175-year-old materials-science business whose optical communications segment has become the dominant growth engine, backed by multi-year deals with Meta, Amazon, and Nvidia.
- Both stocks have retreated sharply from their 2026 highs as the broader AI trade unwound, but GLW has retained more of its year-to-date gains than CLS.
- Relative performance, volatility, and customer concentration are the key trade-offs investors must weigh in this stock comparison.
- For more information about each ticker's major news and today's price moves, explore CLS Major News, CLS Today's Price Move, GLW Major News, and GLW Today's Price Move.
- To see how algorithmic strategies are positioning across the market, explore the curated Trending AI Robots.
Introduction
Artificial intelligence has become one of the defining investment themes of the current market cycle, and both CLS (Celestica) and GLW (Corning) have ridden that wave — and more recently, its sharp correction. Celestica designs and manufactures servers, networking switches, and storage systems for the world's largest cloud providers, while Corning supplies the optical fiber, glass, and connectivity products that carry data through AI data centers. This stock comparison is relevant to growth-oriented traders seeking AI infrastructure exposure, as well as investors weighing concentrated, high-momentum growth against a diversified, established materials franchise. Understanding their distinct market positioning helps clarify how each may perform across different market environments.
CLS Overview and Recent Performance
CLS, or Celestica, is a Canadian electronics manufacturing services company that builds compute, networking, and storage hardware, increasingly for hyperscale AI customers. In recent quarters the business has grown rapidly: revenue rose roughly 62% year over year in its second quarter to about $4.7 billion, with record adjusted operating margin, as 800G (800-gigabit) switching and AI compute programs scaled up. Management has raised full-year guidance and highlighted partnerships involving Broadcom, AMD, and OpenAI, as well as an emerging co-packaged optics switch program expected to ramp in 2027.
Despite strong fundamentals, recent market activity has been punishing. As AI-spending concerns resurfaced, CLS shares fell well off their 2026 peak and underperformed industry peers over the trailing year. A $3 billion equity offering in August added supply pressure, and analysts note the company's dependence on a handful of large customers — with roughly three companies contributing the majority of revenue — as a key concentration risk. This mix of rapid growth and elevated volatility defines the current CLS profile.
GLW Overview and Recent Performance
GLW, or Corning, is a diversified materials-science company with a 175-year history spanning glass, ceramics, and optical physics. Its optical communications segment has become the primary growth engine, with sales rising roughly 32% year over year in the second quarter and enterprise network (data center fiber) sales up around 65%. Corning has secured multi-year, multibillion-dollar agreements with Meta and Amazon and a manufacturing partnership with Nvidia that aims to expand U.S. optical connectivity capacity roughly tenfold.
Like Celestica, GLW has pulled back sharply from record highs reached earlier in 2026, losing about half its value from peak, with an October equity-issuance authorization adding pressure. Yet the stock remains materially higher year to date, and its diversified mix — optical communications, glass innovations, automotive, and a new solar segment — offers broader revenue exposure. Core earnings per share growth has continued at a roughly 30% year-over-year pace in recent periods, underscoring resilient underlying momentum.
Trending AI Robots
Tickeron's Trending AI Robots page highlights a curated selection of algorithmic trading strategies chosen for their suitability to current market conditions. While Tickeron maintains hundreds of AI trading bots that collectively trade thousands of different tickers, only a small number earn a place in this featured section. These bots vary widely in trading style, strategy, timeframe, performance, and the set of tickers they monitor — from short-term swing approaches to longer-horizon trend systems. For traders comparing stocks like CLS and GLW, this resource offers a data-driven lens on how automated strategies are interpreting relative strength and momentum. Explore the Trending AI Robots to see which strategies align with current market conditions.
Head-to-Head Comparison
The two companies differ fundamentally in business model. CLS is a contract manufacturer whose growth depends on winning and ramping large hardware programs for a small group of hyperscalers — a high-reward, high-concentration model. GLW is a component and materials supplier serving broader end markets, with optical communications as its fastest-growing but not sole driver.
On growth, CLS has shown the steeper revenue acceleration, while GLW has delivered steadier, mid-teens-to-twenties sales growth with expanding margins. On risk, CLS faces greater customer concentration and heavy capital spending commitments; GLW carries diversification and a modest dividend but also trades at an elevated valuation relative to earnings. In terms of market sentiment, both have experienced sharp de-ratings, though GLW has preserved more relative strength and a larger base of buy-rated analyst coverage.
Tickeron AI Verdict
Based on observable factors, Tickeron's AI would likely lean toward GLW for its more diversified revenue base, steadier trend consistency, and comparatively stronger retention of recent gains, while acknowledging that CLS offers the more aggressive earnings-growth profile for risk-tolerant investors. The higher customer concentration and heavier volatility in CLS argue for a more cautious probabilistic stance, whereas GLW's broadened demand and long-term supply agreements provide greater stability. Neither is a definitive "buy," but on the balance of trend stability, diversification, and catalyst visibility, the AI framework would currently assign a modest edge to GLW.
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 Hold and GLW is a Hold.
CLS in downward trend: 10-day moving average crossed below 50-day moving average on October 21, 2026
The 10-day moving average for CLS crossed bearishly below the 50-day moving average on October 21, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 11 of 12 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are 90%.
Technical Analysis (Indicators)
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 08, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on CLS as a result. In 63 of 81 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 78%.
The Moving Average Convergence Divergence Histogram (MACD) for CLS turned negative on October 09, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 49 similar instances when the indicator turned negative. In 36 of the 49 cases the stock turned lower in the days that followed. This puts the odds of success at 73%.
CLS moved below its 50-day moving average on October 14, 2026 date and that indicates a change from an upward trend to a downward trend.
The 50-day moving average for CLS moved below the 200-day moving average on October 15, 2026. This could be a long-term bearish signal for the stock as the stock shifts to an downward trend.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where CLS declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 75%.
The Aroon Indicator for CLS entered a downward trend on November 03, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Bullish Trend Analysis
The RSI Indicator points to a transition from a downward trend to an upward trend -- in cases where CLS's RSI Oscillator exited the oversold zone, 13 of 19 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 68%.
The Stochastic Oscillator demonstrated that the ticker has stayed in the oversold zone for 1 day, which means it's wise to expect a price bounce in the near future.
Following a +21.55% 3-day Advance, the price is estimated to grow further. Considering data from situations where CLS advanced for three days, in 314 of 374 cases, the price rose further within the following month. The odds of a continued upward trend are 84%.
CLS may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
Fundamental Analysis (Ratings)
The Tickeron SMR rating for this company is 20 (best 1 - 100 worst), indicating very strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Profit vs. Risk Rating rating for this company is 40 (best 1 - 100 worst), indicating well-balanced risk and returns. The average Profit vs. Risk Rating rating for the industry is 71, placing this stock slightly better than average.
The Tickeron Valuation Rating of 69 (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: CLS's P/B Ratio (13.220) is very high in comparison to the industry average of (4.187). P/E Ratio (26.828) is within average values for comparable stocks, (4.640). CLS's Projected Growth (PEG Ratio) (0.030) is slightly lower than the industry average of (0.930). Dividend Yield (0.000) settles around the average of (0.020) among similar stocks. P/S Ratio (2.388) is also within normal values, averaging (4.422).
The Tickeron Price Growth Rating for this company is 85 (best 1 - 100 worst), indicating slightly worse than average price growth. CLS’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron PE Growth Rating for this company is 91 (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
GLW in -4.41% downward trend, declining for three consecutive days on November 02, 2026
Moving lower for three straight days is viewed as a bearish sign. Keep an eye on this stock for future declines. Considering data from situations where GLW declined for three days, in 163 of 260 cases, the price declined further within the following month. The odds of a continued downward trend are 63%.
Technical Analysis (Indicators)
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 08, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on GLW as a result. In 53 of 86 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 62%.
The Moving Average Convergence Divergence Histogram (MACD) for GLW turned negative on October 12, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 48 similar instances when the indicator turned negative. In 27 of the 48 cases the stock turned lower in the days that followed. This puts the odds of success at 56%.
GLW moved below its 50-day moving average on October 12, 2026 date and that indicates a change from an upward trend to a downward trend.
The 10-day moving average for GLW crossed bearishly below the 50-day moving average on October 15, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 7 of 15 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are 47%.
The 50-day moving average for GLW moved below the 200-day moving average on October 20, 2026. This could be a long-term bearish signal for the stock as the stock shifts to an downward trend.
The Aroon Indicator for GLW entered a downward trend on November 03, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Bullish Trend Analysis
The RSI Indicator points to a transition from a downward trend to an upward trend -- in cases where GLW's RSI Indicator exited the oversold zone, 13 of 21 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 62%.
The Stochastic Oscillator demonstrated that the ticker has stayed in the oversold zone for 1 day, which means it's wise to expect a price bounce in the near future.
GLW may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
Fundamental Analysis (Ratings)
The Tickeron PE Growth Rating for this company is 49 (best 1 - 100 worst), pointing to consistent earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron SMR rating for this company is 53 (best 1 - 100 worst), indicating strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Profit vs. Risk Rating rating for this company is 57 (best 1 - 100 worst), indicating well-balanced risk and returns. The average Profit vs. Risk Rating rating for the industry is 71, placing this stock slightly better than average.
The Tickeron Price Growth Rating for this company is 64 (best 1 - 100 worst), indicating steady price growth. GLW’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Valuation Rating of 77 (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: GLW's P/B Ratio (8.651) is slightly higher than the industry average of (4.187). P/E Ratio (56.820) is within average values for comparable stocks, (4.640). Projected Growth (PEG Ratio) (0.906) is also within normal values, averaging (0.930). Dividend Yield (0.009) settles around the average of (0.020) among similar stocks. P/S Ratio (7.446) is also within normal values, averaging (4.422).
CLS | GLW | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 67 | 68 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 69 Overvalued | 77 Overvalued | |
PROFIT vs RISK RATING 1..100 | 40 | 57 | |
SMR RATING 1..100 | 20 | 53 | |
PRICE GROWTH RATING 1..100 | 85 | 64 | |
P/E GROWTH RATING 1..100 | 91 | 49 | |
SEASONALITY SCORE 1..100 | 50 | n/a |
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.
CLS's Valuation (69) in the Electronic Components industry is in the same range as GLW (77). This means that CLS’s stock grew similarly to GLW’s over the last 12 months.
CLS's Profit vs Risk Rating (40) in the Electronic Components industry is in the same range as GLW (57). This means that CLS’s stock grew similarly to GLW’s over the last 12 months.
CLS's SMR Rating (20) in the Electronic Components industry is somewhat better than the same rating for GLW (53). This means that CLS’s stock grew somewhat faster than GLW’s over the last 12 months.
GLW's Price Growth Rating (64) in the Electronic Components industry is in the same range as CLS (85). This means that GLW’s stock grew similarly to CLS’s over the last 12 months.
GLW's P/E Growth Rating (49) in the Electronic Components industry is somewhat better than the same rating for CLS (91). This means that GLW’s stock grew somewhat faster than CLS’s over the last 12 months.
| CLS | GLW | |
|---|---|---|
| RSI ODDS (%) | 2 days ago 68% | 2 days ago 62% |
| Stochastic ODDS (%) | 2 days ago 82% | 2 days ago 69% |
| Momentum ODDS (%) | 2 days ago 78% | 2 days ago 62% |
| MACD ODDS (%) | 2 days ago 73% | 2 days ago 56% |
| TrendWeek ODDS (%) | 2 days ago 72% | 2 days ago 61% |
| TrendMonth ODDS (%) | 2 days ago 74% | 2 days ago 60% |
| Advances ODDS (%) | 8 days ago 84% | N/A |
| Declines ODDS (%) | 3 days ago 75% | 3 days ago 63% |
| BollingerBands ODDS (%) | 2 days ago 84% | 2 days ago 71% |
| Aroon ODDS (%) | 2 days ago 71% | 2 days ago 52% |
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 overvalued. 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 1 FA rating(s) are green while GLW’s FA Score has 0 green FA rating(s).
- CLS’s FA Score: 1 green, 4 red.
- GLW’s FA Score: 0 green, 5 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 4 TA indicator(s) are bullish while GLW’s TA Score has 3 bullish TA indicator(s).
- CLS’s TA Score: 4 bullish, 7 bearish.
- GLW’s TA Score: 3 bullish, 7 bearish.
Price Growth
CLS (@Electronic Components) experienced а -6.00% price change this week, while GLW (@Electronic Components) price change was -0.13% for the same time period.
The average weekly price growth across all stocks in the @Electronic Components industry was -8.40%. For the same industry, the average monthly price growth was -19.32%, and the average quarterly price growth was -19.18%.
Reported Earning Dates
CLS is expected to report earnings on Jan 27, 2027.
GLW is expected to report earnings on Feb 03, 2027.
Industries' Descriptions
@Electronic Components (-8.40% 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.
Advertisement
CLS and
Correlation & Price change
A.I.dvisor indicates that over the last year, CLS has been loosely correlated with FN. These tickers have moved in lockstep 66% of the time. This A.I.-generated data suggests there is some statistical probability that if CLS jumps, then FN could also see price increases.
GLW and
Correlation & Price change
A.I.dvisor indicates that over the last year, GLW has been closely correlated with FN. These tickers have moved in lockstep 70% of the time. This A.I.-generated data suggests there is a high statistical probability that if GLW jumps, then FN could also see price increases.
| Ticker / NAME | Correlation To GLW | 1D Price Change % | ||
|---|---|---|---|---|
| GLW | 100% | +2.39% | ||
| FN - GLW | 70% Closely correlated | +15.45% | ||
| BHE - GLW | 69% Closely correlated | +3.26% | ||
| FLEX - GLW | 68% Closely correlated | +4.63% | ||
| TTMI - GLW | 64% Loosely correlated | +6.59% | ||
| VSH - GLW | 61% Loosely correlated | +6.66% | ||
More | ||||