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Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)

25.78 -0.64 (-2.42%)
Delayed Quote Updated: 3:21 PM EDT, Oct 16, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 186,449
Open 26.61
Bid (Size) 25.74 (100)
Ask (Size) 25.79 (300)
Prev. Close 26.42
Today's Range 25.52 - 26.61
52wk Range 16.64 - 29.52
Shares Outstanding 48,081,433
Dividend Yield N/A

Performance

52-Week Range 12.7% below 52-week high
25.78
16.6452W Low 29.5252W High
1 Week 4.9% below 1-week high
25.651W Low 27.101W High

Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.78, 12.7% below its 52-week high. Over the past week it ranged between $25.65 and $27.10.

Past 12 Months
-3.2%
+9.1%
+29.8%
+18.2%
-2.6%
+11.4%
1W -$0.84
1M +$2.14
3M +$5.92
6M +$3.97
YTD -$0.68
1Y +$2.64

AMPH was +11.4% over the past year, +18.2% over six months, -2.6% year to date, -3.2% in the last week.

12 Months vs Market
AMPH
+11.4%
DIA
+12.0%
SPY
+14.7%
QQQ
+17.9%
IWM
+8.1%

Over the past 12 months AMPH returned +11.4% versus DIA (Dow) +12.0%, SPY (S&P 500) +14.7%, QQQ (Nasdaq 100) +17.9% and IWM (Russell 2000) +8.1%.

Volume & Liquidity 0.39× 3-mo avg
Today 186,449 3-mo avg 472.3K
1W
368.8K
1M
527.0K
3M
472.3K
6M
539.8K
YTD
517.5K
1Y
494.1K

AMPH most recently traded 186,449 shares against a 3-month average daily volume of 472.3K.

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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 25.78
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/16/26 03:21 PM ET
What is the market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock?
The market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock is 1.24B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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