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AEHR vs ONTO
Which Stock Would AI Choose? Aehr Test Systems (AEHR) vs. Onto Innovation (ONTO) Stock Comparison
Key Takeaways
- AEHR (Aehr Test Systems) has re-rated sharply in 2026 on AI-related semiconductor test and burn-in orders, while ONTO (Onto Innovation) has delivered a steadier climb backed by record revenue and a backlog exceeding $1.1 billion.
- AEHR is a smaller, higher-beta growth story trading at a steep premium relative to current sales; ONTO is a larger, profitable process-control leader with broader scale and recurring revenue.
- Both companies are leveraged to the same macro theme — AI infrastructure and advanced packaging — but they serve different points in the semiconductor manufacturing process.
- AEHR's recent momentum has been volatile, with rapid gains followed by pullbacks, while ONTO's relative performance has been more consistent against its peer group.
- For more information on each ticker's major news and today's price moves, explore AEHR Major News and AEHR Today's Price Move, as well as ONTO Major News and ONTO Today's Price Move.
- To see how automated strategies are positioning across this market, explore the curated Trending AI Robots page.
Introduction
Investors screening the semiconductor equipment space increasingly encounter two very different profiles: Aehr Test Systems (AEHR) and Onto Innovation (ONTO). Both have benefited from the same underlying driver — surging capital spending on artificial intelligence (AI) data centers — yet they occupy distinct niches and carry markedly different risk-reward profiles. AEHR provides test and burn-in systems for chips and wafers, while ONTO supplies process-control, inspection, and metrology tools used throughout semiconductor manufacturing. This stock comparison is most relevant for growth-oriented traders weighing high-momentum, high-valuation exposure against a more diversified, profitable equipment leader.
AEHR Overview and Recent Performance
Aehr Test Systems develops wafer-level and package-level test and burn-in equipment used to stress and screen semiconductors for reliability. Historically tied to silicon carbide (SiC) power devices for electric vehicles, the company has pivoted rapidly toward AI processors, silicon photonics, and memory testing in recent quarters. This transition has reshaped market sentiment: AEHR's shares surged more than 300% over the course of 2026, though recent market activity has been volatile, with notable pullbacks following strong runs.
The catalysts have been order-driven. Recent weeks brought follow-on production orders for its FOX-XP wafer-level burn-in systems and Sonoma package-level systems from hyperscale and AI-focused customers, alongside roughly $8 million in silicon carbide orders tied to new EV programs. The company reported record quarterly bookings near $60.7 million and an effective backlog around $100.6 million, with fiscal 2027 revenue guidance of $130–$150 million. The trade-off is valuation: AEHR trades at a substantial premium to sales relative to its own history, leaving little margin for execution shortfalls.
ONTO Overview and Recent Performance
Onto Innovation provides process-control solutions spanning macro-defect inspection, metrology, and advanced-packaging lithography used by leading logic, memory, and outsourced assembly and test (OSAT) providers. Its Dragonfly and Atlas platforms are central to inspection and measurement for advanced packaging, high-bandwidth memory (HBM), and next-generation transistor nodes. Unlike AEHR's volatile climb, ONTO's relative performance has been steadier, with the stock roughly doubling over the past year.
Recent results underscore durability: second-quarter 2026 revenue of $343 million rose 35% year over year, with gross and operating margins expanding and backlog exceeding $1.1 billion for the first time. Management raised its advanced-packaging growth outlook to approximately 80% for 2026 and lifted second-half revenue growth expectations. The company also holds nearly $1.9 billion in cash and short-term investments and took a roughly $710 million stake in Rigaku Holdings. Sentiment has been supported by broad demand across HBM and 2.5D packaging, though semiconductor-cycle and customer-concentration risks remain.
Trending AI Robots
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Head-to-Head Comparison
The clearest contrast between these two stocks is scale and profitability. ONTO is a larger, consistently profitable company generating hundreds of millions in quarterly revenue with expanding margins and a diversified customer base across logic, memory, and packaging. AEHR is considerably smaller, with recent quarterly revenue in the low double-digit millions and a record of uneven profitability as it pivots toward AI-driven demand.
Growth drivers also differ. AEHR's momentum depends heavily on a concentrated group of AI and hyperscale customers adopting its burn-in and test systems, plus a potential recovery in silicon carbide. ONTO's growth is broader, spanning advanced packaging, HBM, and leading-edge metrology across multiple customers and geographies. On risk, AEHR carries higher customer concentration and a richer valuation relative to current fundamentals, while ONTO faces semiconductor-cycle sensitivity and intensifying competition from larger equipment peers. In market sentiment terms, AEHR offers higher potential volatility and upside, whereas ONTO offers more consistent trend stability.
Tickeron AI Verdict
Based on observable factors such as trend consistency, stability, catalyst breadth, and relative positioning, Tickeron's AI would likely favor ONTO for a stability- and trend-oriented framework. Its record revenue, expanding margins, $1.1 billion backlog, and diversified demand across HBM and advanced packaging reflect a more durable setup. AEHR may retain an edge on pure momentum and upside sensitivity to new AI orders, but its higher valuation, customer concentration, and recent volatility introduce greater uncertainty. The AI Verdict therefore leans toward ONTO on a risk-adjusted basis, while acknowledging that AEHR could outperform if its order pipeline converts into sustained, profitable growth.
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 AEHR is a Buy and ONTO is a Buy.
AEHR's RSI Oscillator remains in oversold zone for 8 days
The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an uptrend is expected.
Technical Analysis (Indicators)
Bullish Trend Analysis
The Stochastic Oscillator shows that the ticker has stayed in the oversold zone for 13 days. The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an upward trend is expected.
Following a +7.62% 3-day Advance, the price is estimated to grow further. Considering data from situations where AEHR advanced for three days, in 245 of 274 cases, the price rose further within the following month. The odds of a continued upward trend are 89%.
AEHR may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
The Aroon Indicator entered an Uptrend today. In 210 of 226 cases where AEHR Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are 90%.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 06, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on AEHR as a result. In 75 of 85 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 88%.
The Moving Average Convergence Divergence Histogram (MACD) for AEHR turned negative on October 07, 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 37 similar instances when the indicator turned negative. In 29 of the 37 cases the stock turned lower in the days that followed. This puts the odds of success at 78%.
AEHR moved below its 50-day moving average on October 06, 2026 date and that indicates a change from an upward trend to a downward trend.
The 10-day moving average for AEHR crossed bearishly below the 50-day moving average on October 09, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 15 of 17 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 88%.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where AEHR 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 83%.
Fundamental Analysis (Ratings)
The Tickeron Valuation Rating of 5 (best 1 - 100 worst) indicates that the company is seriously undervalued 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: P/B Ratio (8.421) is normal, around the industry mean (6.363). P/E Ratio (-246.087) is within average values for comparable stocks, (89.427). Projected Growth (PEG Ratio) (0.927) is also within normal values, averaging (0.832). Dividend Yield (0.000) settles around the average of (0.008) among similar stocks. P/S Ratio (51.813) is also within normal values, averaging (27.093).
The Tickeron PE Growth Rating for this company is 18 (best 1 - 100 worst), pointing to outstanding 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 Price Growth Rating for this company is 64 (best 1 - 100 worst), indicating fairly steady price growth. AEHR’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Profit vs. Risk Rating rating for this company is 69 (best 1 - 100 worst), indicating that the returns do not compensate for the risks. AEHR’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 74, placing this stock better than average.
The Tickeron SMR rating for this company is 92 (best 1 - 100 worst), indicating weak sales and an unprofitable 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.
ONTO's RSI Oscillator remains in oversold zone for 8 days
The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an uptrend is expected.
Technical Analysis (Indicators)
Bullish Trend Analysis
The Stochastic Oscillator shows that the ticker has stayed in the oversold zone for 10 days. The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an upward trend is expected.
Following a +2.45% 3-day Advance, the price is estimated to grow further. Considering data from situations where ONTO advanced for three days, in 268 of 328 cases, the price rose further within the following month. The odds of a continued upward trend are 82%.
ONTO may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
The Aroon Indicator entered an Uptrend today. In 188 of 226 cases where ONTO Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are 83%.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 12, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on ONTO as a result. In 78 of 97 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 80%.
The Moving Average Convergence Divergence Histogram (MACD) for ONTO 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 43 similar instances when the indicator turned negative. In 32 of the 43 cases the stock turned lower in the days that followed. This puts the odds of success at 74%.
ONTO 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 ONTO crossed bearishly below the 50-day moving average on October 16, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 14 of 19 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 74%.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where ONTO 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%.
Fundamental Analysis (Ratings)
The Tickeron PE Growth Rating for this company is 4 (best 1 - 100 worst), pointing to outstanding 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 Seasonality Score of 50 (best 1 - 100 worst) indicates that the company is fair valued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
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 74, placing this stock slightly better than average.
The Tickeron Price Growth Rating for this company is 64 (best 1 - 100 worst), indicating fairly steady price growth. ONTO’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Valuation Rating of 79 (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: P/B Ratio (5.195) is normal, around the industry mean (6.363). P/E Ratio (76.228) is within average values for comparable stocks, (89.427). Projected Growth (PEG Ratio) (0.817) is also within normal values, averaging (0.832). Dividend Yield (0.000) settles around the average of (0.008) among similar stocks. P/S Ratio (10.787) is also within normal values, averaging (27.093).
The Tickeron SMR rating for this company is 80 (best 1 - 100 worst), indicating weak sales and an unprofitable 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.
AEHR | ONTO | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 59 | 73 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 5 Undervalued | 79 Overvalued | |
PROFIT vs RISK RATING 1..100 | 69 | 57 | |
SMR RATING 1..100 | 92 | 80 | |
PRICE GROWTH RATING 1..100 | 64 | 64 | |
P/E GROWTH RATING 1..100 | 18 | 4 | |
SEASONALITY SCORE 1..100 | 90 | 50 |
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.
AEHR's Valuation (5) in the Electronic Production Equipment industry is significantly better than the same rating for ONTO (79) in the null industry. This means that AEHR’s stock grew significantly faster than ONTO’s over the last 12 months.
ONTO's Profit vs Risk Rating (57) in the null industry is in the same range as AEHR (69) in the Electronic Production Equipment industry. This means that ONTO’s stock grew similarly to AEHR’s over the last 12 months.
ONTO's SMR Rating (80) in the null industry is in the same range as AEHR (92) in the Electronic Production Equipment industry. This means that ONTO’s stock grew similarly to AEHR’s over the last 12 months.
ONTO's Price Growth Rating (64) in the null industry is in the same range as AEHR (64) in the Electronic Production Equipment industry. This means that ONTO’s stock grew similarly to AEHR’s over the last 12 months.
ONTO's P/E Growth Rating (4) in the null industry is in the same range as AEHR (18) in the Electronic Production Equipment industry. This means that ONTO’s stock grew similarly to AEHR’s over the last 12 months.
| AEHR | ONTO | |
|---|---|---|
| RSI ODDS (%) | 2 days ago 90% | 2 days ago 90% |
| Stochastic ODDS (%) | 2 days ago 90% | 2 days ago 87% |
| Momentum ODDS (%) | 2 days ago 88% | 2 days ago 80% |
| MACD ODDS (%) | 2 days ago 78% | 2 days ago 74% |
| TrendWeek ODDS (%) | 2 days ago 83% | 2 days ago 74% |
| TrendMonth ODDS (%) | 2 days ago 83% | 2 days ago 72% |
| Advances ODDS (%) | 26 days ago 89% | 2 days ago 82% |
| Declines ODDS (%) | 5 days ago 83% | 12 days ago 75% |
| BollingerBands ODDS (%) | 2 days ago 90% | 2 days ago 90% |
| Aroon ODDS (%) | 2 days ago 90% | 2 days ago 83% |
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).
AEHR’s FA Score shows that 2 FA rating(s) are green while ONTO’s FA Score has 1 green FA rating(s).
- AEHR’s FA Score: 2 green, 3 red.
- ONTO’s FA Score: 1 green, 4 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.
AEHR’s TA Score shows that 5 TA indicator(s) are bullish while ONTO’s TA Score has 5 bullish TA indicator(s).
- AEHR’s TA Score: 5 bullish, 5 bearish.
- ONTO’s TA Score: 5 bullish, 5 bearish.
Price Growth
AEHR (@Electronic Production Equipment) experienced а -10.63% price change this week, while ONTO (@Electronic Production Equipment) price change was -10.05% for the same time period.
The average weekly price growth across all stocks in the @Electronic Production Equipment industry was +0.07%. For the same industry, the average monthly price growth was -17.63%, and the average quarterly price growth was -24.06%.
Reported Earning Dates
AEHR is expected to report earnings on Nov 02, 2026.
ONTO is expected to report earnings on Nov 09, 2026.
Industries' Descriptions
@Electronic Production Equipment (+0.07% weekly)The electronic production equipment industry makes equipment used to produce semiconductors. Such equipment includes wafer fabrication, plasma etching and photo-resist processing equipment. The industry also makes chemical vapor deposition processing systems and photomasks, which are high-purity quartz plates that contain patterns to define integrated circuits layouts. Applied Materials, Inc., Lam Research Corporation, and KLA-Tencor Corporation are examples of electronic production equipment manufacturing companies.
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AEHR and
Correlation & Price change
A.I.dvisor indicates that over the last year, AEHR has been closely correlated with TER. These tickers have moved in lockstep 69% of the time. This A.I.-generated data suggests there is a high statistical probability that if AEHR jumps, then TER could also see price increases.
| Ticker / NAME | Correlation To AEHR | 1D Price Change % | ||
|---|---|---|---|---|
| AEHR | 100% | +2.33% | ||
| TER - AEHR | 69% Closely correlated | +0.05% | ||
| ONTO - AEHR | 69% Closely correlated | +2.44% | ||
| NVMI - AEHR | 68% Closely correlated | +1.60% | ||
| LRCX - AEHR | 68% Closely correlated | +3.22% | ||
| CAMT - AEHR | 67% Closely correlated | +1.77% | ||
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ONTO and
Correlation & Price change
A.I.dvisor indicates that over the last year, ONTO has been closely correlated with AMAT. These tickers have moved in lockstep 85% of the time. This A.I.-generated data suggests there is a high statistical probability that if ONTO jumps, then AMAT could also see price increases.
| Ticker / NAME | Correlation To ONTO | 1D Price Change % | ||
|---|---|---|---|---|
| ONTO | 100% | +2.44% | ||
| AMAT - ONTO | 85% Closely correlated | +2.74% | ||
| LRCX - ONTO | 83% Closely correlated | +3.22% | ||
| KLAC - ONTO | 82% Closely correlated | +2.47% | ||
| NVMI - ONTO | 81% Closely correlated | +1.60% | ||
| ENTG - ONTO | 80% Closely correlated | +4.24% | ||
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