Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 454,523 |
| Open | 25.43 |
| Bid (Size) | 25.13 (100) |
| Ask (Size) | 25.37 (300) |
| Prev. Close | 25.43 |
| Today's Range | 25.17 - 25.70 |
| 52wk Range | 16.64 - 29.52 |
| Shares Outstanding | 48,081,433 |
| Dividend Yield | N/A |
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Performance
52-Week Range
14.1% below 52-week high
25.37
16.6452W Low
29.5252W High
1 Week
8.2% below 1-week high
25.061W Low
27.641W High
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.37, 14.1% below its 52-week high. Over the past week it ranged between $25.06 and $27.64.
Past 12 Months
1W
-$1.31
1M
+$2.44
3M
+$5.76
6M
+$4.79
YTD
-$1.09
1Y
-$1.21
AMPH was -4.6% over the past year, +23.3% over six months, -4.1% year to date, -4.9% in the last week.
12 Months vs Market
AMPH
-4.6%
DIA
+9.7%
SPY
+15.4%
QQQ
+24.4%
IWM
+14.8%
Over the past 12 months AMPH returned -4.6% versus DIA (Dow) +9.7%, SPY (S&P 500) +15.4%, QQQ (Nasdaq 100) +24.4% and IWM (Russell 2000) +14.8%.
Volume & Liquidity
0.98× 3-mo avg
Today 454,523
3-mo avg 465.0K
1W
500.2K
1M
541.4K
3M
465.0K
6M
539.7K
YTD
520.8K
1Y
492.2K
AMPH most recently traded 454,523 shares against a 3-month average daily volume of 465.0K.
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August 13, 2026
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August 06, 2026
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Frequently Asked Questions
Is Amphastar Pharmaceuticals, Inc. - Common Stock publicly traded?
Yes, Amphastar Pharmaceuticals, Inc. - Common Stock is publicly traded.
What exchange does Amphastar Pharmaceuticals, Inc. - Common Stock trade on?
Amphastar Pharmaceuticals, Inc. - Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Amphastar Pharmaceuticals, Inc. - Common Stock?
The ticker symbol for Amphastar Pharmaceuticals, Inc. - Common Stock is AMPH on the Nasdaq Stock Market
What is the current price of Amphastar Pharmaceuticals, Inc. - Common Stock?
The current price of Amphastar Pharmaceuticals, Inc. - Common Stock is 25.37
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/05/26 04:00 PM ET
What is the market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock?
The market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock is 1.22B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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