If you'd invested in Amphstar Pharmaceuticals, Inc. (AMPH): performance and returns
Looking for Amphstar Pharmaceuticals, Inc.'s share price history and how much the stock has returned? Here's its year-by-year performance and what $1,000 invested at different dates would be worth today.
💰 Calculator: how much would Amphstar Pharmaceuticals, Inc. have returned?
This calculator shows how much Amphstar Pharmaceuticals, Inc. stock would have returned based on the amount invested and the starting year. Pick a sum and a year and you'll instantly see what it would be worth today and the total gain. Real prices, excluding dividends.
If I'd invested $1,000 in Amphstar Pharmaceuticals, Inc.
| Investment | Worth today | Gain |
|---|---|---|
| 1 years ago | $506 | -49% |
| 3 years ago | $671 | -33% |
| 5 years ago | $935 | -6% |
| 10 years ago | $1,322 | +32% |
| since inception (2014) | $2,118 | +112% |
Return by year (Amphstar Pharmaceuticals, Inc.)
| Year | Return | $1,000 invested at year start |
|---|---|---|
| 2026 (YTD) | -30% | $702 (-30%) |
| 2025 | -28% | $506 (-49%) |
| 2024 | -40% | $304 (-70%) |
| 2023 | +121% | $671 (-33%) |
| 2022 | +20% | $807 (-19%) |
| 2021 | +16% | $935 (-6%) |
| 2020 | +4% | $975 (-3%) |
| 2019 | -3% | $945 (-6%) |
| 2018 | +3% | $977 (-2%) |
| 2017 | +4% | $1,021 (+2%) |
| 2016 | +29% | $1,322 (+32%) |
Frequently asked questions
How much does AMPH return?
$1,000 invested in Amphstar Pharmaceuticals, Inc. 10 years ago would be worth $1,322 today, i.e. +3%/yr on average (price, excluding dividends).
What was AMPH's best/worst year?
Best year: 2023 (+121%). Worst year: 2024 (-40%). Year-by-year detail is above.
How much would $1,000 invested in AMPH since inception be worth?
Since 2014, $1,000 would have become $2,118 (+112%). Past performance is not a guarantee.
Do Amphstar Pharmaceuticals, Inc.'s returns include dividends?
No — these returns are price-only. If Amphstar Pharmaceuticals, Inc. pays a dividend, its total return would be somewhat higher — see its dividend page.
What is Amphstar Pharmaceuticals, Inc.'s average annual return (ROI)?
Amphstar Pharmaceuticals, Inc.'s return on investment is about +3%/yr over 10 years (price, excluding dividends), versus the S&P 500's ~10%/yr over the long run.