Amphastar Pharmaceuticals, Inc. (AMPH)
NASDAQ: AMPH · Real-Time Price · USD
25.87
-0.55 (-2.08%)
At close: Oct 16, 2026, 4:00 PM EDT
25.80
-0.07 (-0.27%)
After-hours: Oct 16, 2026, 7:30 PM EDT
Amphastar Pharmaceuticals Market Cap
Amphastar Pharmaceuticals has a market cap or net worth of $1.1 billion as of October 16, 2026. It is the 9,583rd most valuable company in the world and the 2,167th biggest in the United States. Its market cap has increased by 2.28% in one year.
Market Cap
1.10B
Enterprise Value
1.50B
1-Year Change
2.28%
Global Rank
Country Rank
#2,167 United States
Category
ChartMarket Cap Chart
Since June 25, 2014, Amphastar Pharmaceuticals's market cap has increased from $374.20M to $1.10B, an increase of 194.08%. That is a compound annual growth rate of 9.15%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 16, 2026 | 1.10B | -10.57% |
| Dec 31, 2025 | 1.23B | -31.07% |
| Dec 31, 2024 | 1.79B | -39.75% |
| Dec 29, 2023 | 2.96B | 118.81% |
| Dec 30, 2022 | 1.35B | 21.52% |
| Dec 31, 2021 | 1.11B | 16.65% |
| Dec 31, 2020 | 955.30M | 5.51% |
| Dec 31, 2019 | 905.40M | -1.31% |
| Dec 31, 2018 | 917.40M | 3.71% |
| Dec 29, 2017 | 884.60M | 4.34% |
| Dec 30, 2016 | 847.80M | 32.34% |
| Dec 31, 2015 | 640.60M | 23.57% |
| Dec 31, 2014 | 518.40M | 38.54% |
| Jun 25, 2014 | 374.20M | - |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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