Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 607,332 |
| Open | 28.31 |
| Bid (Size) | 27.82 (200) |
| Ask (Size) | 29.45 (100) |
| Prev. Close | 28.02 |
| Today's Range | 27.43 - 29.21 |
| 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
6.3% below 52-week high
27.66
16.6452W Low
29.5252W High
1 Week
5.3% below 1-week high
26.691W Low
29.211W High
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $27.66, 6.3% below its 52-week high. Over the past week it ranged between $26.69 and $29.21.
Past 12 Months
1W
-$0.06
1M
+$1.75
3M
+$7.85
6M
+$3.63
YTD
+$1.20
1Y
+$2.35
AMPH was +9.3% over the past year, +15.1% over six months, +4.5% year to date, -0.2% in the last week.
12 Months vs Market
AMPH
+9.3%
DIA
+8.7%
SPY
+8.2%
QQQ
+3.8%
IWM
+10.7%
Over the past 12 months AMPH returned +9.3% versus DIA (Dow) +8.7%, SPY (S&P 500) +8.2%, QQQ (Nasdaq 100) +3.8% and IWM (Russell 2000) +10.7%.
Volume & Liquidity
1.28× 3-mo avg
Today 607,332
3-mo avg 475.3K
1W
592.7K
1M
434.6K
3M
475.3K
6M
542.4K
YTD
511.5K
1Y
497.4K
AMPH most recently traded 607,332 shares against a 3-month average daily volume of 475.3K.
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Amphastar (AMPH) Q2 2026 Earnings Call Transcript ↗
August 13, 2026
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August 06, 2026
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August 03, 2026
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 27.66
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 11/05/26 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 1.33B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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