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

29.50 +0.63 (+2.20%)
Delayed Quote Updated: 1:37 PM EST, Nov 13, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 129,818
Open 29.05
Bid (Size) 29.48 (200)
Ask (Size) 29.53 (100)
Prev. Close 28.87
Today's Range 28.84 - 29.54
52wk Range 16.64 - 31.00
Shares Outstanding 48,081,433
Dividend Yield N/A

Performance

52-Week Range 4.8% below 52-week high
29.50
16.6452W Low 31.0052W High
1 Week 4.8% below 1-week high
27.801W Low 31.001W High

Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $31.00 over the past 52 weeks and last traded at $29.50, 4.8% below its 52-week high. Over the past week it ranged between $27.80 and $31.00.

Past 12 Months
+3.6%
+13.3%
+46.2%
+70.5%
+11.5%
+6.0%
1W +$1.02
1M +$3.45
3M +$9.32
6M +$12.20
YTD +$3.04
1Y +$1.68

AMPH was +6.0% over the past year, +70.5% over six months, +11.5% year to date, +3.6% in the last week.

12 Months vs Market
AMPH
+6.0%
DIA
+8.2%
SPY
+10.1%
QQQ
+9.2%
IWM
+13.7%

Over the past 12 months AMPH returned +6.0% versus DIA (Dow) +8.2%, SPY (S&P 500) +10.1%, QQQ (Nasdaq 100) +9.2% and IWM (Russell 2000) +13.7%.

Volume & Liquidity 0.28× 3-mo avg
Today 129,818 3-mo avg 466.5K
1W
563.9K
1M
449.8K
3M
466.5K
6M
518.1K
YTD
512.7K
1Y
495.6K

AMPH most recently traded 129,818 shares against a 3-month average daily volume of 466.5K.

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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 29.50
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 11/13/26 01:37 PM ET
What is the market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock?
The market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock is 1.42B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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