IMOS
ChipMOS TECHNOLOGIES Inc.
Semiconductors
Market Cap$2.07B
5Y Perf.+191.9%
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Stock Comparison
IMOS vs ONTO
Revenue, margins, valuation, and 5-year total return — side by side.
ONTO
Onto Innovation Inc.
Semiconductors
Market Cap$13.63B
5Y Perf.+781.7%
IMOS vs ONTO — Key Financials
Market cap, revenue, margins, and valuation side-by-side.
| Company Snapshot | IMOS | ONTO |
|---|---|---|
| Industry | Semiconductors | Semiconductors |
| Market Cap | $2.07B | $13.63B |
| Revenue (TTM) | $22.81B | $1.03B |
| Net Income (TTM) | $247M | $106M |
| Gross Margin | 9.5% | 48.8% |
| Operating Margin | 2.7% | 10.0% |
| Forward P/E | 0.8x | 38.7x |
| Total Debt | $15.16B | $17M |
| Cash & Equiv. | $15.22B | $346M |
IMOS vs ONTO — Long-Term Stock Performance
Price return indexed to 100 at period start. Dividends excluded.
IMOS
ONTO
| Stock | May 20 | May 26 | Return |
|---|---|---|---|
| ChipMOS TECHNOLOGIE… (IMOS) | 100 | 291.9 | +191.9% |
| Onto Innovation Inc. (ONTO) | 100 | 881.7 | +781.7% |
Price return only. Dividends and distributions are not included.
Quick Verdict: IMOS vs ONTO
Each card shows where this stock fits in a portfolio — not just who wins on paper.
Bottom line: IMOS leads in 5 of 7 categories, making it the strongest pick for growth and revenue expansion and valuation and capital efficiency. Onto Innovation Inc. is the stronger pick specifically for profitability and margin quality and operational efficiency and capital deployment. As sector peers, any of these can serve as alternatives in the same allocation.
IMOS
ChipMOS TECHNOLOGIES Inc.
The Income Pick
IMOS carries the broadest edge in this set and is the clearest fit for income & stability and growth exposure.
- Dividend streak 0 yrs, beta 1.36, yield 1.9%
- Rev growth 6.3%, EPS growth -25.2%, 3Y rev CAGR -6.1%
- Lower volatility, beta 1.36, Low D/E 60.6%, current ratio 2.71x
Best for: income & stability and growth exposure
ONTO
Onto Innovation Inc.
The Long-Run Compounder
ONTO is the clearest fit if your priority is long-term compounding.
- 14.3% 10Y total return vs IMOS's 301.1%
- 10.3% margin vs IMOS's 1.1%
- 4.7% ROA vs IMOS's 0.6%, ROIC 5.7% vs 3.6%
Best for: long-term compounding
See the full category breakdown
| Category | Winner | Why |
|---|---|---|
| Growth | IMOS | 6.3% revenue growth vs ONTO's 1.8% |
| Value | IMOS | Lower P/E (0.8x vs 38.7x), PEG 0.01 vs 1.12 |
| Quality / Margins | ONTO | 10.3% margin vs IMOS's 1.1% |
| Stability / Safety | IMOS | Beta 1.36 vs ONTO's 2.66 |
| Dividends | IMOS | 1.9% yield; the other pay no meaningful dividend |
| Momentum (1Y) | IMOS | +251.8% vs ONTO's +118.9% |
| Efficiency (ROA) | ONTO | 4.7% ROA vs IMOS's 0.6%, ROIC 5.7% vs 3.6% |
IMOS vs ONTO — Revenue Breakdown by Segment
How each company's revenue is distributed across its business units
Segment breakdown not available.
FY 2025
IMOS vs ONTO — Financial Metrics
Side-by-side numbers across 2 stocks — who leads on profitability, valuation, growth, and risk.
BEST OVERALLONTOLAGGINGIMOS
IMOSChipMOS TECHNOLOGIES …
2leads
ONTOOnto Innovation Inc.
3leads
6 Total Categories
CATEGORYLEADERvs IMOSMETRICS WON
Income & Cash FlowRevenue, margins, and cash flow strength
ONTO5/6
Valuation MetricsMultiples, price ratios, and targets
IMOS6/7
Profitability & EfficiencyROE, ROIC, leverage, and quality scores
ONTO7/8
Total Returns1Y, 3Y, 5Y total returns with dividends
ONTO4/6
Risk & VolatilityBeta, volatility, and downside exposure
IMOS2/2
Analyst OutlookRatings, price targets, and dividends
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Income & Cash Flow (Last 12 Months)
ONTO leads this category, winning 5 of 6 comparable metrics.
Income & Cash Flow (Last 12 Months)
IMOS is the larger business by revenue, generating $22.8B annually — 22.1x ONTO's $1.0B. ONTO is the more profitable business, keeping 10.3% of every revenue dollar as net income compared to IMOS's 1.1%. On growth, ONTO holds the edge at +9.5% YoY revenue growth, suggesting stronger near-term business momentum.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| RevenueTrailing 12 months | $22.8B | $1.0B |
| EBITDAEarnings before interest/tax | $5.6B | $158M |
| Net IncomeAfter-tax profit | $247M | $106M |
| Free Cash FlowCash after capex | -$85M | $239M |
| Gross MarginGross profit ÷ Revenue | +9.5% | +48.8% |
| Operating MarginEBIT ÷ Revenue | +2.7% | +10.0% |
| Net MarginNet income ÷ Revenue | +1.1% | +10.3% |
| FCF MarginFCF ÷ Revenue | -0.4% | +23.2% |
| Rev. Growth (YoY)Latest quarter vs prior year | +1.2% | +9.5% |
| EPS Growth (YoY)Latest quarter vs prior year | +22.0% | -48.5% |
ONTO leads this category, winning 5 of 6 comparable metrics.
Valuation Metrics
IMOS leads this category, winning 6 of 7 comparable metrics.
Valuation Metrics
At 48.2x trailing earnings, IMOS trades at a 51% valuation discount to ONTO's 98.6x P/E. Adjusting for growth (PEG ratio), IMOS offers better value at 0.77x vs ONTO's 2.85x — a lower PEG means you pay less per unit of expected earnings growth.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| Market CapShares × price | $2.1B | $13.6B |
| Enterprise ValueMkt cap + debt − cash | $2.1B | $13.3B |
| Trailing P/EPrice ÷ TTM EPS | 48.23x | 98.57x |
| Forward P/EPrice ÷ next-FY EPS est. | 0.80x | 38.74x |
| PEG RatioP/E ÷ EPS growth rate | 0.77x | 2.85x |
| EV / EBITDAEnterprise value multiple | 10.55x | 68.79x |
| Price / SalesMarket cap ÷ Revenue | 2.85x | 13.56x |
| Price / BookPrice ÷ Book value/share | 2.73x | 6.43x |
| Price / FCFMarket cap ÷ FCF | 75.32x | 45.47x |
IMOS leads this category, winning 6 of 7 comparable metrics.
Profitability & Efficiency
ONTO leads this category, winning 7 of 8 comparable metrics.
Profitability & Efficiency
ONTO delivers a 5.2% return on equity — every $100 of shareholder capital generates $5 in annual profit, vs $1 for IMOS. ONTO carries lower financial leverage with a 0.01x debt-to-equity ratio, signaling a more conservative balance sheet compared to IMOS's 0.61x. On the Piotroski fundamental quality scale (0–9), IMOS scores 6/9 vs ONTO's 4/9, reflecting solid financial health.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| ROE (TTM)Return on equity | +1.1% | +5.2% |
| ROA (TTM)Return on assets | +0.6% | +4.7% |
| ROICReturn on invested capital | +3.6% | +5.7% |
| ROCEReturn on capital employed | +3.4% | +6.5% |
| Piotroski ScoreFundamental quality 0–9 | 6 | 4 |
| Debt / EquityFinancial leverage | 0.61x | 0.01x |
| Net DebtTotal debt minus cash | -$63M | -$329M |
| Cash & Equiv.Liquid assets | $15.2B | $346M |
| Total DebtShort + long-term debt | $15.2B | $17M |
| Interest CoverageEBIT ÷ Interest expense | 6.24x | — |
ONTO leads this category, winning 7 of 8 comparable metrics.
Total Returns (Dividends Reinvested)
ONTO leads this category, winning 4 of 6 comparable metrics.
Total Returns (Dividends Reinvested)
A $10,000 investment in ONTO five years ago would be worth $41,263 today (with dividends reinvested), compared to $19,852 for IMOS. Over the past 12 months, IMOS leads with a +251.8% total return vs ONTO's +118.9%. The 3-year compound annual growth rate (CAGR) favors ONTO at 47.1% vs IMOS's 35.1% — a key indicator of consistent wealth creation.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| YTD ReturnYear-to-date | +94.6% | +65.2% |
| 1-Year ReturnPast 12 months | +251.8% | +118.9% |
| 3-Year ReturnCumulative with dividends | +146.7% | +218.0% |
| 5-Year ReturnCumulative with dividends | +98.5% | +312.6% |
| 10-Year ReturnCumulative with dividends | +301.1% | +1431.7% |
| CAGR (3Y)Annualised 3-year return | +35.1% | +47.1% |
ONTO leads this category, winning 4 of 6 comparable metrics.
Risk & Volatility
IMOS leads this category, winning 2 of 2 comparable metrics.
Risk & Volatility
IMOS is the less volatile stock with a 1.36 beta — it tends to amplify market swings less than ONTO's 2.66 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. IMOS currently trades 98.3% from its 52-week high vs ONTO's 86.8% drawdown — a narrower gap to the peak suggests stronger recent price momentum.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| Beta (5Y)Sensitivity to S&P 500 | 1.36x | 2.66x |
| 52-Week HighHighest price in past year | $60.47 | $315.86 |
| 52-Week LowLowest price in past year | $15.06 | $85.88 |
| % of 52W HighCurrent price vs 52-week peak | +98.3% | +86.8% |
| RSI (14)Momentum oscillator 0–100 | 70.5 | 61.0 |
| Avg Volume (50D)Average daily shares traded | 65K | 832K |
IMOS leads this category, winning 2 of 2 comparable metrics.
Analyst Outlook
Insufficient data to determine a leader in this category.
Analyst Outlook
Wall Street rates IMOS as "Hold" and ONTO as "Buy". IMOS is the only dividend payer here at 1.92% yield — a key consideration for income-focused portfolios.
| Metric | IMOSChipMOS TECHNOLOG… | ONTOOnto Innovation I… |
|---|---|---|
| Analyst RatingConsensus buy/hold/sell | Hold | Buy |
| Price TargetConsensus 12-month target | — | $308.33 |
| # AnalystsCovering analysts | 1 | 11 |
| Dividend YieldAnnual dividend ÷ price | +1.9% | — |
| Dividend StreakConsecutive years of raises | 0 | — |
| Dividend / ShareAnnual DPS | $35.67 | — |
| Buyback YieldShare repurchases ÷ mkt cap | 0.0% | +0.6% |
Insufficient data to determine a leader in this category.
Key Takeaway
ONTO leads in 3 of 6 categories (Income & Cash Flow, Profitability & Efficiency). IMOS leads in 2 (Valuation Metrics, Risk & Volatility).
Best OverallOnto Innovation Inc. (ONTO)Leads 3 of 6 categories
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IMOS vs ONTO: Frequently Asked Questions
10 questions · data-driven answers · updated daily
01Is IMOS or ONTO a better buy right now?
For growth investors, ChipMOS TECHNOLOGIES Inc.
(IMOS) is the stronger pick with 6. 3% revenue growth year-over-year, versus 1. 8% for Onto Innovation Inc. (ONTO). ChipMOS TECHNOLOGIES Inc. (IMOS) offers the better valuation at 48. 2x trailing P/E (0. 8x forward), making it the more compelling value choice. Analysts rate Onto Innovation Inc. (ONTO) a "Buy" — based on 11 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.
02Which has the better valuation — IMOS or ONTO?
On trailing P/E, ChipMOS TECHNOLOGIES Inc.
(IMOS) is the cheapest at 48. 2x versus Onto Innovation Inc. at 98. 6x. On forward P/E, ChipMOS TECHNOLOGIES Inc. is actually cheaper at 0. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: ChipMOS TECHNOLOGIES Inc. wins at 0. 01x versus Onto Innovation Inc. 's 1. 12x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.
03Which is the better long-term investment — IMOS or ONTO?
Over the past 5 years, Onto Innovation Inc.
(ONTO) delivered a total return of +312. 6%, compared to +98. 5% for ChipMOS TECHNOLOGIES Inc. (IMOS). Over 10 years, the gap is even starker: ONTO returned +1432% versus IMOS's +301. 1%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.
04Which is safer — IMOS or ONTO?
By beta (market sensitivity over 5 years), ChipMOS TECHNOLOGIES Inc.
(IMOS) is the lower-risk stock at 1. 36β versus Onto Innovation Inc. 's 2. 66β — meaning ONTO is approximately 96% more volatile than IMOS relative to the S&P 500. On balance sheet safety, Onto Innovation Inc. (ONTO) carries a lower debt/equity ratio of 1% versus 61% for ChipMOS TECHNOLOGIES Inc. — giving it more financial flexibility in a downturn.
05Which is growing faster — IMOS or ONTO?
By revenue growth (latest reported year), ChipMOS TECHNOLOGIES Inc.
(IMOS) is pulling ahead at 6. 3% versus 1. 8% for Onto Innovation Inc. (ONTO). On earnings-per-share growth, the picture is similar: ChipMOS TECHNOLOGIES Inc. grew EPS -25. 2% year-over-year, compared to -31. 5% for Onto Innovation Inc.. Over a 3-year CAGR, ONTO leads at 0. 0% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.
06Which has better profit margins — IMOS or ONTO?
Onto Innovation Inc.
(ONTO) is the more profitable company, earning 13. 6% net margin versus 6. 3% for ChipMOS TECHNOLOGIES Inc. — meaning it keeps 13. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ONTO leads at 13. 2% versus 5. 6% for IMOS. At the gross margin level — before operating expenses — ONTO leads at 49. 7%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.
07Is IMOS or ONTO more undervalued right now?
The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.
By this metric, ChipMOS TECHNOLOGIES Inc. (IMOS) is the more undervalued stock at a PEG of 0. 01x versus Onto Innovation Inc. 's 1. 12x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ChipMOS TECHNOLOGIES Inc. (IMOS) trades at 0. 8x forward P/E versus 38. 7x for Onto Innovation Inc. — 37. 9x cheaper on a one-year earnings basis.
08Which pays a better dividend — IMOS or ONTO?
In this comparison, IMOS (1.
9% yield) pays a dividend. ONTO does not pay a meaningful dividend and should not be held primarily for income.
09Is IMOS or ONTO better for a retirement portfolio?
For long-horizon retirement investors, ChipMOS TECHNOLOGIES Inc.
(IMOS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (1. 9% yield, +301. 1% 10Y return). Onto Innovation Inc. (ONTO) carries a higher beta of 2. 66 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (IMOS: +301. 1%, ONTO: +1432%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.
10What are the main differences between IMOS and ONTO?
Both stocks operate in the Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.
IMOS pays a dividend while ONTO does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.
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(IMOS: 1.2% · ONTO: 9.5%)P/E Ratio<
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