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ONTO
Onto Innovation Inc.
stock NYSE

At Close

Sep 29, 2026 3:59:53 PM EDT

304.67USD+5.517%(+15.93)652,091

288.33Bid 317.10Ask 28.77Spread

Pre-market

Sep 29, 2026 9:27:30 AM EDT

295.00USD+2.168%(+6.26)2,430

After-hours

Sep 29, 2026 4:30:30 PM EDT

305.00USD+0.108%(+0.33)1,671

OverviewOptionsHistoricalExchange VolumeShortsMore

ONTO Volume Sep 29, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	46.30	301,834	47.14
NYSE	24.40	159,074	25.97
IEX	8.85	57,688	6.15
Nasdaq GSM	8.03	52,339	7.59
NYSE Arca	3.46	22,582	4.19
Cboe BZX	3.32	21,649	3.44
Cboe EDGX	2.37	15,455	2.14
Cboe EDGA	0.77	5,045	0.32
Cboe BYX	0.59	3,822	0.86
MEMX	0.51	3,306	0.80
MIAX Pearl	0.31	2,034	0.23
Nasdaq PHLX	0.24	1,596	0.13
NYSE American	0.24	1,578	0.14
Nasdaq BX	0.23	1,493	0.40
NYSE National	0.16	1,059	0.38
24X National	0.08	552	0.04
CHX	0.07	442	0.04
Texas Stock Exchange LLC	0.05	301	0.02
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

ONTO Nutrition Facts

0.74 servings per container

Serving size

875.94K

Calories

651.85K

% Day

% Avg

Off Exchange¹ 302K

46.30%

47.14%

NYSE 159K

24.40%

25.97%

IEX 58K

8.85%

6.15%

Nasdaq GSM 52K

8.03%

7.59%

NYSE Arca 23K

3.46%

4.19%

Cboe BZX 22K

3.32%

3.44%

Cboe EDGX 15K

2.37%

2.14%

Cboe EDGA 5K

0.77%

0.32%

Cboe BYX 4K

0.59%

0.86%

MEMX 3K

0.51%

0.80%

MIAX Pearl 2K

0.31%

0.23%

Nasdaq PHLX 2K

0.24%

0.13%

NYSE American 2K

0.24%

0.14%

Nasdaq BX 1K

0.23%

0.40%

NYSE National 1K

0.16%

0.38%

24X National 552

0.08%

0.04%

CHX 442

0.07%

0.04%

Texas Stock Exchange LLC 301

0.05%

0.02%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

ONTO Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 301,834, which is 46.30% of today's total volume.
Today's Lit volume is 350,015, which is 53.70%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.14%.
The average Lit volume has been 52.86%.

ONTO Volume by Exchange

Off Exchange

NYSE

IEX

Nasdaq GSM

NYSE Arca

Cboe BZX

Cboe EDGX

Cboe EDGA

Cboe BYX

MEMX

MIAX Pearl