KLAC vs. ONTO

Last updated Apr 1, 2026

Compare and contrast key facts about KLA Corporation (KLAC) and Onto Innovation Inc. (ONTO).

Performance

KLAC vs. ONTO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in KLA Corporation (KLAC) and Onto Innovation Inc. (ONTO). The values are adjusted to include any dividend payments, if applicable.

KLAC vs. ONTO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
KLAC KLA Corporation	21.34%	94.48%	9.36%	56.05%	-11.20%	68.05%	47.94%	103.99%	-12.49%	36.80%
ONTO Onto Innovation Inc.	29.91%	-5.29%	9.01%	124.56%	-32.74%	112.89%	30.13%	33.70%	9.67%	-0.56%

Fundamentals

Market Cap KLAC : $194.66B ONTO : $10.16B
EPS KLAC : $34.42 ONTO : $2.78
PE Ratio KLAC : 42.78 ONTO : 73.81
PEG Ratio KLAC : 1.60 ONTO : 6.62
PS Ratio KLAC : 15.30 ONTO : 10.04
PB Ratio KLAC : 35.61 ONTO : 4.84
Total Revenue (TTM) KLAC : $12.74B ONTO : $1.01B
Gross Profit (TTM) KLAC : $7.89B ONTO : $499.77M
EBITDA (TTM) KLAC : $5.71B ONTO : $188.86M

Returns By Period

In the year-to-date period, KLAC achieves a 21.34% return, which is significantly lower than ONTO's 29.91% return. Over the past 10 years, KLAC has outperformed ONTO with an annualized return of 37.36%, while ONTO has yielded a comparatively lower 29.67% annualized return.

KLAC

• 1D: 6.50%
• 1M: -3.42%
• YTD: 21.34%
• 6M: 36.92%
• 1Y: 118.24%
• 3Y*: 55.93%
• 5Y*: 34.90%
• 10Y*: 37.36%

ONTO

• 1D: 8.35%
• 1M: -5.01%
• YTD: 29.91%
• 6M: 58.70%
• 1Y: 69.00%
• 3Y*: 32.64%
• 5Y*: 24.01%
• 10Y*: 29.67%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

KLAC vs. ONTO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

KLAC

KLAC Risk / Return Rank: 93
KLAC Sharpe Ratio Rank: 94
KLAC Sortino Ratio Rank: 89
KLAC Omega Ratio Rank: 91
KLAC Calmar Ratio Rank: 95
KLAC Martin Ratio Rank: 96

ONTO

ONTO Risk / Return Rank: 75
ONTO Sharpe Ratio Rank: 75
ONTO Sortino Ratio Rank: 71
ONTO Omega Ratio Rank: 73
ONTO Calmar Ratio Rank: 78
ONTO Martin Ratio Rank: 75

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

KLAC vs. ONTO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for KLA Corporation (KLAC) and Onto Innovation Inc. (ONTO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	KLAC	ONTO	Difference
Sharpe ratio Return per unit of total volatility	2.41	1.00	+1.41
Sortino ratio Return per unit of downside risk	2.74	1.58	+1.16
Omega ratio Gain probability vs. loss probability	1.40	1.23	+0.17
Calmar ratio Return relative to maximum drawdown	5.37	2.02	+3.35
Martin ratio Return relative to average drawdown	17.17	4.20	+12.97
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

KLAC vs. ONTO - Sharpe Ratio Comparison

The current KLAC Sharpe Ratio is 2.41, which is higher than the ONTO Sharpe Ratio of 1.00. The chart below compares the historical Sharpe Ratios of KLAC and ONTO, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	KLAC	ONTO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.41	1.00	+1.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.82	0.44	+0.38
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.92	0.59	+0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.20	+0.23

Correlation

The correlation between KLAC and ONTO is 0.38, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

KLAC vs. ONTO - Dividend Comparison

KLAC's dividend yield for the trailing twelve months is around 0.52%, while ONTO has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
KLAC KLA Corporation	0.52%	0.61%	0.96%	0.92%	1.25%	0.91%	1.35%	1.74%	3.17%	2.15%	2.67%	2.94%
ONTO Onto Innovation Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

KLAC vs. ONTO - Drawdown Comparison

The maximum KLAC drawdown since its inception was -83.74%, smaller than the maximum ONTO drawdown of -98.56%. Use the drawdown chart below to compare losses from any high point for KLAC and ONTO.

Drawdown Indicators

	KLAC	ONTO	Difference
Max Drawdown Largest peak-to-trough decline	-83.74%	-98.56%	+14.82%
Max Drawdown (1Y) Largest decline over 1 year	-22.41%	-33.64%	+11.23%
Max Drawdown (5Y) Largest decline over 5 years	-40.28%	-62.82%	+22.54%
Max Drawdown (10Y) Largest decline over 10 years	-40.28%	-62.82%	+22.54%
Current Drawdown Current decline from peak	-12.49%	-13.85%	+1.36%
Average Drawdown Average peak-to-trough decline	-29.47%	-54.98%	+25.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.00%	16.20%	-9.20%

Volatility

KLAC vs. ONTO - Volatility Comparison

The current volatility for KLA Corporation (KLAC) is 17.00%, while Onto Innovation Inc. (ONTO) has a volatility of 22.54%. This indicates that KLAC experiences smaller price fluctuations and is considered to be less risky than ONTO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KLAC	ONTO	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.00%	22.54%	-5.54%
Volatility (6M) Calculated over the trailing 6-month period	37.03%	41.71%	-4.68%
Volatility (1Y) Calculated over the trailing 1-year period	49.32%	69.14%	-19.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.63%	54.81%	-12.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.93%	50.78%	-9.85%

Financials

KLAC vs. ONTO - Profitability Comparison

The chart below illustrates the profitability comparison between KLA Corporation and Onto Innovation Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

KLAC - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, KLA Corporation reported a gross profit of 2.03B and revenue of 3.30B. Therefore, the gross margin over that period was 61.5%.

ONTO - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Onto Innovation Inc. reported a gross profit of 123.79M and revenue of 266.87M. Therefore, the gross margin over that period was 46.4%.

KLAC - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, KLA Corporation reported an operating income of 1.36B and revenue of 3.30B, resulting in an operating margin of 41.3%.

ONTO - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Onto Innovation Inc. reported an operating income of 13.86M and revenue of 266.87M, resulting in an operating margin of 5.2%.

KLAC - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, KLA Corporation reported a net income of 1.15B and revenue of 3.30B, resulting in a net margin of 34.8%.

ONTO - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Onto Innovation Inc. reported a net income of 10.53M and revenue of 266.87M, resulting in a net margin of 4.0%.