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ALGN
Align Technology Inc
stock NASDAQ

At Close

May 18, 2026 3:59:56 PM EDT

158.75USD+0.954%(+1.50)959,365

150.71Bid 166.95Ask 16.24Spread

Pre-market

0.00USD-100.000%(-157.25)0

After-hours

May 18, 2026 4:23:30 PM EDT

160.00USD+0.787%(+1.25)208,903

OverviewOptionsHistoricalDark Pool LevelsShortsMore

ALGN Volume May 18, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	45.78	447,920	46.45
Nasdaq GSM	33.60	328,720	34.51
IEX	5.27	51,599	4.47
NYSE Arca	3.30	32,331	4.35
NYSE	2.15	21,045	1.67
Cboe EDGX	2.04	19,973	1.38
Cboe BZX	1.84	18,021	3.58
Cboe BYX	1.51	14,781	0.84
Nasdaq BX	1.47	14,368	0.60
MEMX	1.07	10,426	0.74
NYSE National	0.97	9,516	0.37
Cboe EDGA	0.56	5,453	0.45
MIAX Pearl	0.23	2,244	0.19
Nasdaq PHLX	0.12	1,210	0.21
NYSE American	0.08	764	0.10
CHX	0.00	1	0.09
LTSE	0.00	0	0.00
24X National	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.

ALGN Nutrition Facts

1.01 servings per container

Serving size

970.00K

Calories

978.37K

% Day

% Avg

Off Exchange¹ 448K

45.78%

46.45%

Nasdaq GSM 329K

33.60%

34.51%

IEX 52K

5.27%

4.47%

NYSE Arca 32K

3.30%

4.35%

NYSE 21K

2.15%

1.67%

Cboe EDGX 20K

2.04%

1.38%

Cboe BZX 18K

1.84%

3.58%

Cboe BYX 15K

1.51%

0.84%

Nasdaq BX 14K

1.47%

0.60%

MEMX 10K

1.07%

0.74%

NYSE National 10K

0.97%

0.37%

Cboe EDGA 5K

0.56%

0.45%

MIAX Pearl 2K

0.23%

0.19%

Nasdaq PHLX 1K

0.12%

0.21%

NYSE American 764

0.08%

0.10%

CHX 1

0.00%

0.09%

LTSE 0

0.00%

24X National 0

0.00%

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

chartexchange.com

ALGN Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 447,920, which is 45.78% of today's total volume.
Today's Lit volume is 530,452, which is 54.22%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 46.45%.
The average Lit volume has been 53.55%.

ALGN Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

NYSE

Cboe EDGX

Cboe BZX

Cboe BYX

Nasdaq BX

MEMX

NYSE National