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ONTO
Onto Innovation Inc.
stock NYSE

At Close

Oct 27, 2025 3:59:58 PM EDT

134.35USD-0.212%(-0.29)993,834

133.97Bid 134.17Ask 0.20Spread

Pre-market

Oct 24, 2025 8:18:30 AM EDT

135.00USD+2.405%(+3.17)0

After-hours

Oct 27, 2025 4:00:30 PM EDT

134.30USD-0.041%(-0.05)283

OverviewOptionsHistoricalExchange VolumeShortsMore

ONTO Volume Oct 27, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	49.79	494,896	42.50
NYSE	28.53	283,587	30.75
Nasdaq GSM	9.01	89,512	11.11
IEX	3.83	38,026	4.01
NYSE Arca	2.31	22,944	3.30
Cboe BZX	1.97	19,598	3.18
Cboe EDGX	1.97	19,579	1.84
Cboe BYX	0.68	6,776	0.68
MEMX	0.53	5,238	0.84
Nasdaq BX	0.45	4,477	0.52
NYSE National	0.28	2,831	0.35
MIAX Pearl	0.28	2,739	0.24
Cboe EDGA	0.17	1,723	0.38
Nasdaq PHLX	0.13	1,307	0.17
NYSE American	0.07	657	0.09
CHX	0.00	10	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

0.65 servings per container

Serving size

1.52M

Calories

993.90K

% Day

% Avg

Off Exchange¹ 495K

49.79%

42.50%

NYSE 284K

28.53%

30.75%

Nasdaq GSM 90K

9.01%

11.11%

IEX 38K

3.83%

4.01%

NYSE Arca 23K

2.31%

3.30%

Cboe BZX 20K

1.97%

3.18%

Cboe EDGX 20K

1.97%

1.84%

Cboe BYX 7K

0.68%

MEMX 5K

0.53%

0.84%

Nasdaq BX 4K

0.45%

0.52%

NYSE National 3K

0.28%

0.35%

MIAX Pearl 3K

0.28%

0.24%

Cboe EDGA 2K

0.17%

0.38%

Nasdaq PHLX 1K

0.13%

0.17%

NYSE American 657

0.07%

0.09%

CHX 10

0.00%

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 494,896, which is 49.79% of today's total volume.
Today's Lit volume is 499,004, which is 50.21%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 42.50%.
The average Lit volume has been 57.50%.

ONTO Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

Cboe BYX

MEMX

Nasdaq BX

NYSE National