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ONTO
Onto Innovation Inc.
stock NYSE

Market Open

Oct 28, 2025 1:15:34 PM EDT

130.62USD-2.776%(-3.73)251,311

122.50Bid 131.43Ask 8.93Spread

Pre-market

Oct 24, 2025 8:18:30 AM EDT

135.00USD+0.267%(+0.36)0

After-hours

Oct 27, 2025 4:00:30 PM EDT

134.30USD-0.041%(-0.05)0

OverviewOptionsHistoricalExchange VolumeShortsMore

ONTO Volume Oct 28, 2025 12:55:00 PM EDT

[ < ]

Exchange	Day%	Volume	30D%
Off Exchange¹	56.83	128,572	42.36
Nasdaq GSM	12.80	28,951	10.89
NYSE	11.76	26,617	31.19
IEX	8.77	19,839	4.04
Cboe BZX	2.98	6,746	3.08
NYSE Arca	2.93	6,622	3.32
Cboe EDGX	2.03	4,603	1.82
MEMX	0.76	1,718	0.84
MIAX Pearl	0.28	640	0.24
Cboe EDGA	0.21	478	0.36
Nasdaq BX	0.19	429	0.52
Cboe BYX	0.13	296	0.68
Nasdaq PHLX	0.11	258	0.17
NYSE American	0.09	204	0.09
NYSE National	0.07	168	0.35
CHX	0.04	100	0.04
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

0.15 servings per container

Serving size

1.48M

Calories

226.24K

% Day

% Avg

Off Exchange¹ 129K

56.83%

42.36%

Nasdaq GSM 29K

12.80%

10.89%

NYSE 27K

11.76%

31.19%

IEX 20K

8.77%

4.04%

Cboe BZX 7K

2.98%

3.08%

NYSE Arca 7K

2.93%

3.32%

Cboe EDGX 5K

2.03%

1.82%

MEMX 2K

0.76%

0.84%

MIAX Pearl 640

0.28%

0.24%

Cboe EDGA 478

0.21%

0.36%

Nasdaq BX 429

0.19%

0.52%

Cboe BYX 296

0.13%

0.68%

Nasdaq PHLX 258

0.11%

0.17%

NYSE American 204

0.09%

NYSE National 168

0.07%

0.35%

CHX 100

0.04%

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 128,572, which is 56.83% of today's total volume.
Today's Lit volume is 97,669, which is 43.17%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 42.36%.
The average Lit volume has been 57.64%.

ONTO Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE

IEX

Cboe BZX

NYSE Arca

Cboe EDGX

MEMX

MIAX Pearl

Cboe EDGA

Nasdaq BX