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

27.72 UNCHANGED
Delayed Quote Updated: 4:00 PM EDT, Oct 30, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 491
Open 27.72
Bid (Size) 11.24 (100)
Ask (Size) 27.81 (1,000)
Prev. Close 27.72
Today's Range 27.72 - 27.72
52wk Range 16.64 - 29.52
Shares Outstanding 48,081,433
Dividend Yield N/A

Performance

52-Week Range 6.1% below 52-week high
27.72
16.6452W Low 29.5252W High
1 Week 0.3% below 1-week high
25.211W 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 $27.72, 6.1% below its 52-week high. Over the past week it ranged between $25.21 and $27.80.

Past 12 Months
+8.8%
+9.0%
+37.1%
+21.9%
+4.8%
+9.6%
1W +$2.25
1M +$2.29
3M +$7.50
6M +$4.98
YTD +$1.26
1Y +$2.42

AMPH was +9.6% over the past year, +21.9% over six months, +4.8% year to date, +8.8% in the last week.

12 Months vs Market
AMPH
+9.6%
DIA
+9.2%
SPY
+10.6%
QQQ
+9.2%
IWM
+13.8%

Over the past 12 months AMPH returned +9.6% versus DIA (Dow) +9.2%, SPY (S&P 500) +10.6%, QQQ (Nasdaq 100) +9.2% and IWM (Russell 2000) +13.8%.

Volume & Liquidity 0.00× 3-mo avg
Today 491 3-mo avg 466.3K
1W
396.5K
1M
406.0K
3M
466.3K
6M
538.4K
YTD
510.3K
1Y
495.3K

AMPH most recently traded 491 shares against a 3-month average daily volume of 466.3K.

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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 27.72
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/30/26 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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