Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 374,221 |
| Open | 25.46 |
| Bid (Size) | 24.20 (1,900) |
| Ask (Size) | 27.48 (200) |
| Prev. Close | 25.35 |
| Today's Range | 25.06 - 25.55 |
| 52wk Range | 16.64 - 29.52 |
| Shares Outstanding | 48,081,433 |
| Dividend Yield | N/A |
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Performance
52-Week Range
13.9% below 52-week high
25.43
16.6452W Low
29.5252W High
1 Week
8.5% 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 $25.43, 13.9% below its 52-week high. Over the past week it ranged between $25.06 and $27.80.
Past 12 Months
1W
-$1.96
1M
+$1.69
3M
+$5.82
6M
+$4.85
YTD
-$1.03
1Y
-$1.09
AMPH was -4.1% over the past year, +23.6% over six months, -3.9% year to date, -7.2% in the last week.
12 Months vs Market
AMPH
-4.1%
DIA
+9.9%
SPY
+15.0%
QQQ
+23.7%
IWM
+15.4%
Over the past 12 months AMPH returned -4.1% versus DIA (Dow) +9.9%, SPY (S&P 500) +15.0%, QQQ (Nasdaq 100) +23.7% and IWM (Russell 2000) +15.4%.
Volume & Liquidity
0.80× 3-mo avg
Today 374,221
3-mo avg 465.1K
1W
559.7K
1M
543.2K
3M
465.1K
6M
540.3K
YTD
521.2K
1Y
490.9K
AMPH most recently traded 374,221 shares against a 3-month average daily volume of 465.1K.
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August 13, 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 25.43
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/02/26 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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