What is the current shares outstanding of ONTO?

As of today, ONTO shares outstanding is 49.07M

What is 1-year change in ONTO shares outstanding?

ONTO shares outstanding is up +0.13% year-over-year

ONTO shares outstanding is down -0.01% over the past 3 years

ONTO shares outstanding is currently -19.71% below its historical high of 61.12M set on August 12, 2026

49.07M12.05M-19.71%

October 5, 2026

Current Value: As of today, ONTO has 49.07M outstanding shares, down -19.71% on October 5, 2026
Historical Performance: ONTO shares outstanding is up +0.13% year-over-year, down -0.01% over the past 3 years
All-Time High Comparison: ONTO shares outstanding is currently -19.71% below its historical high of 61.12M set on August 12, 2026
3-Year Low Comparison: ONTO shares outstanding is +0.49% above its 3-year low of 48.84M reached on March 31, 2025

ONTO Performance
Metric	Date	Value	1Y	3Y	5Y
Shares Outstanding	Oct 5, 26	49.07M	+0.1%	-0.0%	-0.4%
Price	Oct 20, 26	$219.62	+61.9%	+86.2%	+200.4%
Market Cap	Oct 20, 26	$11B	+62.1%	+86.2%	+199.2%
PE Ratio	Oct 20, 26	82.19	+114.9%	+121.8%	+161.8%
TTM Revenue	Jun 30, 26	$1.12B	+8.1%	+24.8%	+73.9%
TTM EPS	Jun 30, 26	$2.67	-33.9%	-23.7%	+51.8%
	Oct 20, 26	$10.37B	+82.5%	+100.1%	+228.1%
TTM Net Income	Jun 30, 26	$132.61M	-33.7%	-23.5%	+52.1%
TTM Dividend	Oct 20, 26	-	–	–	–

ONTO Shares Outstanding Highs Comparison
Period	High	Date	Current
1Y	61.12M	Aug 12, 26	-19.7%
3Y	61.12M	Aug 12, 26	-19.7%
5Y	61.12M	Aug 12, 26	-19.7%
All	61.12M	Aug 12, 26	-19.7%

ONTO Shares Outstanding Lows Comparison
Period	Low	Date	Current
1Y	49.01M	N/A	+0.1%
3Y	48.84M	Mar 31, 25	+0.5%
5Y	48.68M	Dec 31, 22	+0.8%
All	8.61M	Mar 30, 98	+470.1%

What is the current shares outstanding of ONTO?: As of today, ONTO shares outstanding is 49.07M
What is 1-year change in ONTO shares outstanding?: ONTO shares outstanding is up +0.13% year-over-year
What is 3-year change in ONTO shares outstanding?: ONTO shares outstanding is down -0.01% over the past 3 years
How far is ONTO shares outstanding from its all-time high?: ONTO shares outstanding is currently -19.71% below its historical high of 61.12M set on August 12, 2026

ONTO Official Website www.ontoinnovation.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/704532/000119312526059380/0001193125-26-059380-index.htm
ONTO Profile on Yahoo Finance finance.yahoo.com/quote/ONTO
ONTO Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/onto