ONTO

Potentially Overvalued

Onto Innovation Inc. — PEG Ratio Analysis

4.27

PEG Ratio

4.27

Growth Rate Source

Good Data Quality5-Year EPS CAGR

Current Price

$316.15

TTM EPS

$2.14

P/E Ratio

147.73

Growth Rate

34.6%

5-Year EPS CAGR

Sector

Technology

Semiconductors

Calculated

6/17/2026

11:04:39 AM

Peer Comparison

Sample Size

5 peers

Industry Median PEG

2.29

25th Percentile

0.34

75th Percentile

7.83

ONTO PEG (4.27) vs Industry Median (2.29): 87% premium

Symbol	Company	PEG	P/E	Growth	vs ONTO
KLAC	KLA Corporation	0.21	6.7	31.5%	-95%
PLAB	Photronics, Inc.	0.34	11.8	34.5%	-92%
ACLS	Axcelis Technologies, Inc.	2.29	46.9	20.5%	-47%
LRCX	Lam Research Corporation	7.83	69.7	8.9%	+83%
CAMT	Camtek Ltd.	13.39	202.0	15.1%	+213%

How to Interpret PEG Ratio

PEG < 1.0 — Potentially Undervalued. The stock may be priced below its earnings growth rate, suggesting a potential buying opportunity.

PEG 1.0–2.0 — Fairly Valued. The stock price is roughly in line with its earnings growth. A PEG of 1.0 is often considered "fair value."

PEG > 2.0 — Potentially Overvalued. The stock may be priced above what its earnings growth justifies.

Limitations:PEG ratios are less reliable for financial firms (earnings driven by interest margins), companies with negative/zero earnings growth, and hypergrowth companies (>100% growth) where the ratio may appear misleadingly low. Always use PEG alongside other valuation metrics.