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AMPH
Amphastar Pharmaceuticals, Inc.
stock NASDAQ

At Close

Jul 18, 2025 3:59:58 PM EDT

20.61USD-5.023%(-1.09)430,269

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 16, 2025 8:00:30 AM EDT

21.68USD-0.092%(-0.02)0

After-hours

Jul 18, 2025 4:00:30 PM EDT

20.62USD+0.049%(+0.01)3,569

OverviewOptionsHistoricalExchange VolumeShortsMore

AMPH Volume Jul 18, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	38.68	166,412	38.91
Nasdaq GSM	38.45	165,449	40.64
NYSE Arca	5.24	22,534	4.96
Cboe EDGX	4.22	18,136	2.97
Cboe BZX	3.88	16,695	3.73
IEX	3.36	14,471	3.89
NYSE	2.70	11,617	1.54
MEMX	1.29	5,548	1.03
Cboe BYX	0.57	2,468	0.68
MIAX Pearl	0.53	2,278	0.22
Nasdaq BX	0.38	1,649	0.47
Cboe EDGA	0.35	1,503	0.52
Nasdaq PHLX	0.26	1,113	0.15
NYSE National	0.06	240	0.18
CHX	0.02	100	0.02
NYSE American	0.01	53	0.08
LTSE	0.00	0	0.00

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

AMPH Nutrition Facts

0.85 servings per container

Serving size

504.29K

Calories

430.27K

% Day

% Avg

Off Exchange¹ 166K

38.68%

38.91%

Nasdaq GSM 165K

38.45%

40.64%

NYSE Arca 23K

5.24%

4.96%

Cboe EDGX 18K

4.22%

2.97%

Cboe BZX 17K

3.88%

3.73%

IEX 14K

3.36%

3.89%

NYSE 12K

2.70%

1.54%

MEMX 6K

1.29%

1.03%

Cboe BYX 2K

0.57%

0.68%

MIAX Pearl 2K

0.53%

0.22%

Nasdaq BX 2K

0.38%

0.47%

Cboe EDGA 2K

0.35%

0.52%

Nasdaq PHLX 1K

0.26%

0.15%

NYSE National 240

0.06%

0.18%

CHX 100

0.02%

NYSE American 53

0.01%

0.08%

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

AMPH Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 166,412, which is 38.68% of today's total volume.
Today's Lit volume is 263,854, which is 61.32%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.91%.
The average Lit volume has been 61.09%.

AMPH Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

Cboe BZX

IEX

NYSE

MEMX

Cboe BYX

MIAX Pearl

Nasdaq BX