AMPH: Amphastar Pharmaceuticals Inc.

As of Thursday, July 23rd, 2026

$ 18.87

-0.43 -2.23%

Open: 19.08
High: 19.34
Low: 18.73
Volume: 650,429
Previous Close on Wednesday, July 22nd, 2026

$ 19.30

-0.29 -1.48%

Open: 19.71
High: 19.95
Low: 19.20
Volume: 409,241

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-07-23 19.08 19.34 18.73 18.87 650,429 -0.43 -2.23
2026-07-22 19.71 19.95 19.20 19.30 409,241 -0.29 -1.48
2026-07-21 19.42 19.89 19.42 19.59 619,967 -0.04 -0.20
2026-07-20 19.78 19.91 19.52 19.63 437,415 -0.12 -0.58
2026-07-17 19.84 20.35 19.63 19.75 338,152 -0.12 -0.58
2026-07-16 19.40 20.14 19.40 19.86 416,837 +0.46 +2.37
2026-07-15 18.87 19.50 18.83 19.40 356,064 +0.60 +3.16
2026-07-14 19.10 19.39 18.41 18.81 334,697 -0.49 -2.51
VIEW MORE / DOWNLOAD

Metrics and Technicals

Period High Low Chg %Chg Max Drawdown SMA
Peak Trough %Loss
Period High Low Chg %Chg MDD SMA
5D 20.35
On 2026-07-17		 18.73
On 2026-07-23		 -0.99 -4.98 20.35
On 2026-07-17		 18.73
On 2026-07-23		 -7.96 19.43
10D 20.35
On 2026-07-17		 18.41
On 2026-07-14		 -0.15 -0.79 20.35
On 2026-07-17		 18.73
On 2026-07-23		 -7.96 19.32
20D 22.00
On 2026-06-25		 18.41
On 2026-07-14		 -2.15 -10.23 22.00
On 2026-06-25		 18.41
On 2026-07-14		 -16.32 19.71
WTD 19.95
On 2026-07-22		 18.73
On 2026-07-23		 -0.88 -4.43 19.95
On 2026-07-22		 18.73
On 2026-07-23		 -6.12 19.35
MTD 20.54
On 2026-07-01		 18.41
On 2026-07-14		 -1.31 -6.49 20.54
On 2026-07-01		 18.41
On 2026-07-14		 -10.35 19.41
As of Thursday, July 23rd, 2026
 
Free Tier
Ticker Last Chg %Chg Volume
GE

General Electric Company

349.00 +7.81 +2.29 3,737,573
KO

The Coca-Cola Company

81.17 -1.03 -1.25 13,647,786
PFE

Pfizer Inc.

25.01 +0.19 +0.77 30,354,129
VZ

Verizon Communications Inc.

43.82 -0.47 -1.06 27,889,766
VIX

CBOE Volatility Index

18.70 +2.06 +12.38
 
Watchlists
Log In
To create and display watchlists.
 
Markets
Ticker Last Chg %Chg Volume
DJIA

Dow Jones Industrial Average

51,711.65 -506.93 -0.97 495,503,602
DJTA

Dow Jones Transportation Average

22,578.51 -20.54 -0.09 106,536,780
SPX

S&P 500 Index

7,408.30 -90.66 -1.21
OEX

S&P 100 Index

3,635.15 -60.49 -1.64
NDX

NASDAQ 100 Index

28,454.81 -543.29 -1.87
NYA

NYSE Composite Index

23,874.27 -45.44 -0.19
XAX

NYSE AMEX Composite Index

8,423.44 +117.64 +1.42
RUI

RUSSELL 1000 Index

4,033.45 -47.68 -1.17
RUT

Russell 2000 Index

2,940.16 -19.78 -0.67
RUA

Russell 3000 Index

4,213.78 -48.90 -1.15
VIX

CBOE Volatility Index

18.70 +2.06 +12.38
VIX1Y

CBOE S&P 500 One-Year Volatility Index

23.76 +0.36 +1.54
VIX6M

CBOE S&P 500 6-Month Volatility Index

22.48 +0.80 +3.69
VIX3M

CBOE S&P 500 3-Month Volatility Index

20.60 +1.06 +5.42
 
Recent
Ticker Last Chg %Chg Volume
CLB

Core Laboratories Inc.

11.80 -0.16 -1.34 709,179
ASO

Academy Sports and Outdoors Inc.

47.06 -1.80 -3.68 1,014,493
HP

Helmerich & Payne Inc.

35.07 -0.17 -0.48 743,726
SLM

SLM Corporation

24.18 -1.04 -4.12 5,619,568
AMPH

Amphastar Pharmaceuticals Inc.

18.87 -0.43 -2.23 650,429