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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 is a smaller, higher-growth semiconductor test and burn-in specialist that has surged sharply in recent months on AI-related demand, trading at a premium valuation.
- ONTO is a larger, profitable process-control leader with a record backlog and stronger, more diversified revenue base.
- Both stocks benefit from AI, advanced packaging, and high-bandwidth memory (HBM) trends, but they occupy different positions in the semiconductor equipment value chain.
- AEHR is a turnaround story pivoting toward AI processors and silicon photonics; ONTO is a more established compounder with demonstrated profitability and cash generation.
- Relative performance and market positioning differ materially, with AEHR showing greater volatility and ONTO offering comparatively more earnings stability.
Introduction
Investors tracking the artificial intelligence-driven semiconductor equipment cycle frequently weigh specialist test providers against diversified process-control companies. This stock comparison examines AEHR (Aehr Test Systems) and ONTO (Onto Innovation), two names with overlapping exposure to AI processors, advanced packaging, and HBM but very different business models and risk profiles. Growth-oriented traders may focus on AEHR's rapid momentum and premium valuation, while investors seeking profitability and scale may find ONTO's established footprint more compelling. Understanding the contrast in relative performance, market positioning, and catalysts helps clarify how each stock might fit a diversified semiconductor portfolio.
AEHR Overview and Recent Performance
Aehr Test Systems, headquartered in Fremont, California, supplies test and burn-in systems used to screen and stabilize semiconductor devices at the wafer level, in singulated die, and at the package level. In recent weeks, AEHR has been among the sector's strongest performers, with its shares climbing dramatically as investors repriced its growth story. The company reported record fiscal fourth-quarter bookings and a roughly $100 million effective backlog, while guiding to a significant step-up in fiscal 2027 revenue. Sentiment has been driven by a shift in its revenue mix toward AI processors, silicon photonics, and power semiconductors, moving away from the electric-vehicle silicon carbide demand that previously dominated. The company also holds a strengthened cash position following an equity offering. This momentum, however, has left the stock trading at a steep forward-sales multiple relative to its own history and to industry peers.
ONTO Overview and Recent Performance
Onto Innovation, based in Wilmington, Massachusetts, provides process-control systems spanning metrology, inspection, and lithography used across the semiconductor value chain, including advanced packaging and leading-edge chip manufacturing. ONTO has also posted strong recent market activity, supported by record quarterly revenue, a gross margin that expanded to roughly 57%, and a backlog exceeding $1.1 billion. Demand has been led by advanced-node metrology and inspection platforms such as the Dragonfly and Atlas families, with particular strength in 2.5D logic packaging and HBM. The company raised its second-half growth outlook and holds nearly $1.9 billion in cash and short-term investments. As with AEHR, elevated valuation multiples and customer concentration remain key considerations, but ONTO's scale, profitability, and diversified revenue base differentiate its risk profile.
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Head-to-Head Comparison
The two companies serve different functions within the semiconductor supply chain. AEHR focuses on reliability screening through test and burn-in, a role that becomes more critical as AI processors and silicon photonics ramp into production. ONTO focuses on process control — measuring, inspecting, and analyzing wafers and packages to improve yield — giving it broad exposure to advanced nodes, memory, and packaging. In terms of scale, ONTO generates far higher revenue and is solidly profitable, while AEHR is transitioning from a period of losses toward a projected rebound. Growth drivers differ in intensity: AEHR's forward guidance implies a very large year-over-year revenue increase from a small base, whereas ONTO's growth, though strong, is more moderate in percentage terms. Risk profiles also diverge — AEHR carries higher volatility and a richer valuation multiple, while ONTO's principal sensitivities include customer concentration and memory-cycle timing. Market sentiment toward both remains positive, but for different reasons.
Tickeron AI Verdict
Based on observable factors, Tickeron's AI would likely tilt toward ONTO on a relative basis. Its consistent trend, demonstrated profitability, record backlog, and expanding margins suggest a more stable and lower-risk trajectory than AEHR's higher-volatility, higher-multiple turnaround. That said, AEHR offers potentially greater upside if its AI and silicon-photonics bookings translate into sustained revenue growth. The AI-driven assessment leans on trend consistency and stability rather than raw momentum, which favors ONTO while acknowledging that AEHR's catalysts could narrow the gap under favorable execution.
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 Hold and ONTO is a Buy.
AEHR | ONTO | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 50 | 31 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 69 Overvalued | 76 Overvalued | |
PROFIT vs RISK RATING 1..100 | 34 | 30 | |
SMR RATING 1..100 | 92 | 80 | |
PRICE GROWTH RATING 1..100 | 34 | 36 | |
P/E GROWTH RATING 1..100 | 65 | 4 | |
SEASONALITY SCORE 1..100 | 75 | 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 (69) in the Electronic Production Equipment industry is in the same range as ONTO (76) in the null industry. This means that AEHR’s stock grew similarly to ONTO’s over the last 12 months.
ONTO's Profit vs Risk Rating (30) in the null industry is in the same range as AEHR (34) 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.
AEHR's Price Growth Rating (34) in the Electronic Production Equipment industry is in the same range as ONTO (36) in the null industry. This means that AEHR’s stock grew similarly to ONTO’s over the last 12 months.
ONTO's P/E Growth Rating (4) in the null industry is somewhat better than the same rating for AEHR (65) in the Electronic Production Equipment industry. This means that ONTO’s stock grew somewhat faster than AEHR’s over the last 12 months.
| AEHR | ONTO | |
|---|---|---|
| RSI ODDS (%) | N/A | 4 days ago 71% |
| Stochastic ODDS (%) | 4 days ago 90% | 4 days ago 74% |
| Momentum ODDS (%) | 4 days ago 82% | 4 days ago 80% |
| MACD ODDS (%) | 4 days ago 86% | 4 days ago 90% |
| TrendWeek ODDS (%) | 4 days ago 87% | 4 days ago 83% |
| TrendMonth ODDS (%) | 4 days ago 86% | 4 days ago 83% |
| Advances ODDS (%) | 4 days ago 89% | 4 days ago 82% |
| Declines ODDS (%) | 21 days ago 83% | 12 days ago 74% |
| BollingerBands ODDS (%) | N/A | N/A |
| Aroon ODDS (%) | 4 days ago 87% | 4 days ago 74% |
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 0 FA rating(s) are green while ONTO’s FA Score has 2 green FA rating(s).
- AEHR’s FA Score: 0 green, 5 red.
- ONTO’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.
AEHR’s TA Score shows that 6 TA indicator(s) are bullish while ONTO’s TA Score has 5 bullish TA indicator(s).
- AEHR’s TA Score: 6 bullish, 2 bearish.
- ONTO’s TA Score: 5 bullish, 4 bearish.
Price Growth
AEHR (@Electronic Production Equipment) experienced а +2.70% price change this week, while ONTO (@Electronic Production Equipment) price change was +13.95% for the same time period.
The average weekly price growth across all stocks in the @Electronic Production Equipment industry was +7.24%. For the same industry, the average monthly price growth was +18.77%, and the average quarterly price growth was +32.75%.
Reported Earning Dates
AEHR is expected to report earnings on Oct 06, 2026.
ONTO is expected to report earnings on Oct 29, 2026.
Industries' Descriptions
@Electronic Production Equipment (+7.24% 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 ONTO. 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 ONTO could also see price increases.
| Ticker / NAME | Correlation To AEHR | 1D Price Change % | ||
|---|---|---|---|---|
| AEHR | 100% | +5.52% | ||
| ONTO - AEHR | 69% Closely correlated | +4.09% | ||
| NVMI - AEHR | 68% Closely correlated | +2.46% | ||
| TER - AEHR | 67% Closely correlated | +8.00% | ||
| LRCX - AEHR | 66% Closely correlated | +2.17% | ||
| CAMT - AEHR | 66% Closely correlated | +7.41% | ||
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