Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 774,795 |
| Open | 25.91 |
| Bid (Size) | 24.20 (1,800) |
| Ask (Size) | 26.65 (100) |
| Prev. Close | 25.91 |
| Today's Range | 25.29 - 26.17 |
| 52wk Range | 16.64 - 29.52 |
| Shares Outstanding | 48,081,433 |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
13.5% below 52-week high
25.54
16.6452W Low
29.5252W High
1 Week
4.7% below 1-week high
25.031W Low
26.791W High
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.54, 13.5% below its 52-week high. Over the past week it ranged between $25.03 and $26.79.
Past 12 Months
1W
-$0.27
1M
+$2.61
3M
+$5.46
6M
+$4.96
YTD
-$0.92
1Y
-$1.04
AMPH was -3.9% over the past year, +24.1% over six months, -3.5% year to date, -1.0% in the last week.
12 Months vs Market
AMPH
-3.9%
DIA
+9.5%
SPY
+15.7%
QQQ
+24.7%
IWM
+12.5%
Over the past 12 months AMPH returned -3.9% versus DIA (Dow) +9.5%, SPY (S&P 500) +15.7%, QQQ (Nasdaq 100) +24.7% and IWM (Russell 2000) +12.5%.
Volume & Liquidity
1.66× 3-mo avg
Today 774,795
3-mo avg 467.4K
1W
467.6K
1M
537.9K
3M
467.4K
6M
540.7K
YTD
520.5K
1Y
492.1K
AMPH most recently traded 774,795 shares against a 3-month average daily volume of 467.4K.
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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 25.54
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/07/26 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 1.23B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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