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

25.14 -0.90 (-3.46%)
Delayed Quote Updated: 4:00 PM EDT, Oct 23, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 483,121
Open 25.91
Bid (Size) 24.01 (100)
Ask (Size) 26.89 (200)
Prev. Close 26.04
Today's Range 24.62 - 25.91
52wk Range 16.64 - 29.52
Shares Outstanding 48,081,433
Dividend Yield N/A

Performance

52-Week Range 14.8% below 52-week high
25.14
16.6452W Low 29.5252W High
1 Week 5.5% below 1-week high
24.621W Low 26.611W High

Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.14, 14.8% below its 52-week high. Over the past week it ranged between $24.62 and $26.61.

Past 12 Months
-3.8%
+0.7%
+34.3%
+17.4%
-5.0%
+1.7%
1W -$1.00
1M +$0.18
3M +$6.42
6M +$3.73
YTD -$1.32
1Y +$0.42

AMPH was +1.7% over the past year, +17.4% over six months, -5.0% year to date, -3.8% in the last week.

12 Months vs Market
AMPH
+1.7%
DIA
+11.6%
SPY
+13.1%
QQQ
+15.4%
IWM
+11.9%

Over the past 12 months AMPH returned +1.7% versus DIA (Dow) +11.6%, SPY (S&P 500) +13.1%, QQQ (Nasdaq 100) +15.4% and IWM (Russell 2000) +11.9%.

Volume & Liquidity 1.05× 3-mo avg
Today 483,121 3-mo avg 462.0K
1W
369.9K
1M
453.2K
3M
462.0K
6M
534.8K
YTD
513.1K
1Y
493.1K

AMPH most recently traded 483,121 shares against a 3-month average daily volume of 462.0K.

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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 25.14
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/23/26 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 1.21B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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