Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 374,218 |
| 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
25.301W 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 $25.30 and $27.80.
Past 12 Months
1W
-$0.70
1M
+$2.47
3M
+$5.79
6M
+$4.97
YTD
-$1.03
1Y
-$1.56
AMPH was -5.8% over the past year, +24.3% over six months, -3.9% year to date, -2.7% in the last week.
12 Months vs Market
AMPH
-5.8%
DIA
+10.1%
SPY
+15.1%
QQQ
+24.3%
IWM
+16.1%
Over the past 12 months AMPH returned -5.8% versus DIA (Dow) +10.1%, SPY (S&P 500) +15.1%, QQQ (Nasdaq 100) +24.3% and IWM (Russell 2000) +16.1%.
Volume & Liquidity
0.81× 3-mo avg
Today 374,218
3-mo avg 464.2K
1W
560.2K
1M
551.2K
3M
464.2K
6M
540.5K
YTD
521.9K
1Y
490.8K
AMPH most recently traded 374,218 shares against a 3-month average daily volume of 464.2K.
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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 25.43
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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