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Amphastar Pharmaceuticals, Inc. (AMPH)

Equity · Currency in USD · Last updated Mar 18, 2023

Share Price Chart

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The chart shows the growth of $10,000 invested in Amphastar Pharmaceuticals, Inc. in Oct 2022 and compares it to the S&P 500 index or another benchmark. It would be worth nearly $41,474 for a total return of roughly 314.74%. All prices are adjusted for splits and dividends.

AMPH (Amphastar Pharmaceuticals, Inc.)
Benchmark (^GSPC)

S&P 500

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Amphastar Pharmaceuticals, Inc.


Amphastar Pharmaceuticals, Inc. had a return of 29.51% year-to-date (YTD) and 6.05% in the last 12 months. Over the past 10 years, Amphastar Pharmaceuticals, Inc. had an annualized return of 17.72%, outperforming the S&P 500 benchmark which had an annualized return of 8.27%.

1 month12.11%-5.31%
6 months23.73%0.39%
1 year6.05%-10.12%
5 years (annualized)12.77%7.32%
10 years (annualized)17.72%8.27%

Monthly Returns Heatmap


Sharpe Ratio Chart

The Sharpe ratio shows whether the portfolio's excess returns are due to smart investment decisions or a result of taking a higher risk. The higher a portfolio's Sharpe ratio, the better its risk-adjusted performance.

The current Amphastar Pharmaceuticals, Inc. Sharpe ratio is 0.13. A Sharpe ratio between 0 and 1.0 is considered sub-optimal.

The chart below displays rolling 12-month Sharpe Ratio.

AMPH (Amphastar Pharmaceuticals, Inc.)
Benchmark (^GSPC)

Dividend History

Amphastar Pharmaceuticals, Inc. doesn't pay dividends

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way.

AMPH (Amphastar Pharmaceuticals, Inc.)
Benchmark (^GSPC)

Worst Drawdowns

The table below shows the maximum drawdowns of the Amphastar Pharmaceuticals, Inc.. A maximum drawdown is an indicator of risk. It shows a reduction in portfolio value from its maximum due to a series of losing trades.

The maximum drawdown since January 2010 for the Amphastar Pharmaceuticals, Inc. is 49.92%, recorded on Mar 20, 2020. It took 456 trading sessions for the portfolio to recover.



To Bottom


To Recover



-49.92%Mar 4, 2019266Mar 20, 2020456Jan 10, 2022722
-43.39%Nov 18, 201678Mar 14, 2017420Nov 9, 2018498
-42.11%Jun 26, 2015170Feb 29, 2016115Aug 11, 2016285
-35.49%Apr 14, 2022144Nov 8, 2022
-20.08%Sep 21, 201632Nov 3, 201610Nov 17, 201642
-18.81%Sep 11, 201444Nov 11, 201418Dec 8, 201462
-17.24%Jun 30, 20148Jul 10, 201432Aug 25, 201440
-15.42%Dec 4, 201814Dec 24, 201819Jan 23, 201933
-12.25%Aug 24, 201614Sep 13, 20165Sep 20, 201619
-11.5%Jan 8, 20156Jan 15, 201513Feb 4, 201519

Volatility Chart

Current Amphastar Pharmaceuticals, Inc. volatility is 33.07%. The chart below shows the rolling 10-day volatility. Volatility is a statistical measure showing how big price swings are in either direction. The higher asset volatility, the riskier it is, because the price movements are less predictable.

AMPH (Amphastar Pharmaceuticals, Inc.)
Benchmark (^GSPC)