Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 93,360 |
| Open | 25.43 |
| Bid (Size) | 25.55 (100) |
| Ask (Size) | 25.61 (100) |
| Prev. Close | 25.43 |
| Today's Range | 25.17 - 25.61 |
| 52wk Range | 16.64 - 29.52 |
| Shares Outstanding | 48,081,433 |
| Dividend Yield | N/A |
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Performance
52-Week Range
13.3% below 52-week high
25.58
16.6452W Low
29.5252W High
1 Week
8.0% below 1-week high
25.061W Low
27.801W High
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.58, 13.3% below its 52-week high. Over the past week it ranged between $25.06 and $27.80.
Past 12 Months
1W
-$1.81
1M
+$2.40
3M
+$5.97
6M
+$5.00
YTD
-$0.88
1Y
-$1.00
AMPH was -3.8% over the past year, +24.3% over six months, -3.3% year to date, -6.6% in the last week.
12 Months vs Market
AMPH
-3.8%
DIA
+9.4%
SPY
+15.1%
QQQ
+23.9%
IWM
+14.6%
Over the past 12 months AMPH returned -3.8% versus DIA (Dow) +9.4%, SPY (S&P 500) +15.1%, QQQ (Nasdaq 100) +23.9% and IWM (Russell 2000) +14.6%.
Volume & Liquidity
0.20× 3-mo avg
Today 93,360
3-mo avg 465.1K
1W
559.7K
1M
551.1K
3M
465.1K
6M
540.3K
YTD
521.2K
1Y
492.4K
AMPH most recently traded 93,360 shares against a 3-month average daily volume of 465.1K.
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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 25.58
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/05/26 12:22 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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