Amphastar Pharmaceuticals, Inc.
AMPHNASDAQHealthcare● Active
$19.74
+$1.04(+5.56%)
Market Cap$870394221
P/E Ratio—
52W High$31.26
52W Low$16.65
Amphastar Pharmaceuticals, Inc.（AMPH）股票价格历史
关键价位里程碑、OHLCV 表、年度回报、同业与 What If。
amph · 日线历史（复权）· FMP · 截至 2026年6月5日
5-Year High5Y
$67.66
Aug 9, 2023
-70.8% from here
5-Year Low5Y
$16.65
May 18, 2026
+18.6% from low
IPO Priceadj.
$8.75
Jun 25, 2014
+125.6% since IPO
1 Year Ago
$26.62
Jun 9, 2025
-25.8% in 1Y
5 Years Ago
$19.43
Jun 8, 2021
+1.6% in 5Y
10 Years Ago
$16.21
Jun 8, 2016
+21.8% in 10Y
Historical Price Data · AMPH
| Date↓ | Open↕ | High↕ | Low↕ | Close↕ | Close (Unadj.) ⓘ | Volume↕ | Change %↕ |
|---|---|---|---|---|---|---|---|
| Jun 5, 2026 | $18.86 | $20.14 | $18.85 | $19.74 | $19.74 | 750K | +4.67% |
| Jun 4, 2026 | $18.28 | $18.90 | $18.28 | $18.70 | $18.70 | 459K | +2.30% |
| Jun 3, 2026 | $18.26 | $18.36 | $17.73 | $18.12 | $18.12 | 509K | -0.77% |
| Jun 2, 2026 | $18.36 | $18.67 | $18.10 | $18.45 | $18.45 | 811K | +0.49% |
| Jun 1, 2026 | $18.63 | $19.01 | $18.22 | $18.42 | $18.42 | 570K | -1.13% |
| May 29, 2026 | $19.28 | $19.46 | $18.55 | $18.85 | $18.85 | 849K | -2.23% |
| May 28, 2026 | $19.04 | $19.55 | $19.02 | $19.30 | $19.30 | 621K | +1.37% |
| May 27, 2026 | $19.31 | $19.34 | $18.50 | $19.10 | $19.10 | 502K | -1.09% |
| May 26, 2026 | $18.45 | $19.12 | $18.45 | $18.81 | $18.81 | 671K | +1.95% |
| May 22, 2026 | $18.25 | $18.44 | $17.93 | $18.41 | $18.41 | 485K | +0.88% |
| May 21, 2026 | $18.07 | $18.37 | $17.76 | $18.16 | $18.16 | 1.7M | +0.50% |
| May 20, 2026 | $17.81 | $18.18 | $17.70 | $18.08 | $18.08 | 869K | +1.52% |
| May 19, 2026 | $17.28 | $17.91 | $17.00 | $17.82 | $17.82 | 725K | +3.12% |
| May 18, 2026 | $16.70 | $17.31 | $16.65 | $17.20 | $17.20 | 866K | +2.99% |
| May 15, 2026 | $17.27 | $17.53 | $16.76 | $16.87 | $16.87 | 679K | -2.32% |
| May 14, 2026 | $17.81 | $18.08 | $17.26 | $17.30 | $17.30 | 739K | -2.86% |
| May 13, 2026 | $17.50 | $18.57 | $17.43 | $18.32 | $18.32 | 971K | +4.69% |
| May 12, 2026 | $18.41 | $18.58 | $17.26 | $17.50 | $17.50 | 1.2M | -4.94% |
| May 11, 2026 | $19.13 | $19.41 | $18.33 | $18.45 | $18.45 | 1.4M | -3.55% |
| May 8, 2026 | $18.58 | $19.52 | $18.28 | $19.00 | $19.00 | 2.0M | +2.26% |
Showing 1–20 of 1,254 records
Annual Stock Price Performance · AMPH
Jan 1 → Dec 31 · 6 years2026-26.6%$26.91 → $19.74
-26.6%
2025-28.3%$37.37 → $26.78
-28.3%
2024-39.9%$61.78 → $37.13
-39.9%
2023+120.8%$28.01 → $61.85
+120.8%
2022+19.8%$23.38 → $28.02
+19.8%
2021+19.9%$19.43 → $23.29
+19.9%
Best Year2023 · +120.8%
Worst Year2024 · -39.9%
Positive Years3 / 6
Avg Annual Return+10.9%
6Y Total Return+1.6%
6Y CAGR~+0.3% / yr
Similar Companies in Healthcare
View sector
Eli Lilly and Company
LLY.TO
$40.68+0.00%
Mkt Cap $1.40T
Eli Lilly and Company
LLY
$1,131.42+0.00%
Mkt Cap $1.07T
Johnson & Johnson
JNJ
$232.77+0.00%
Mkt Cap $560.3B
AbbVie Inc.
ABBV
$227.23+0.00%
Mkt Cap $401.5B
UnitedHealth Group Incorporated
UNH
$399.47+0.00%
Mkt Cap $362.8B
Merck & Co., Inc.
MRK
$120.79+0.00%
Mkt Cap $298.3B
AstraZeneca PLC
AZN
$185.95+0.00%
Mkt Cap $288.4B
Novartis AG
NVS
$149.16+0.00%
Mkt Cap $284.6B
Novo Nordisk A/S
NVO
$42.96+0.00%
Mkt Cap $190.9B
Amgen Inc.
AMGN
$349.58+0.00%
Mkt Cap $188.7BWhat If You Invested in AMPH?
If you invested $1,000 in AMPH 10 years ago — how much would it be worth today?
INVESTED$1,000
→TODAY WORTH$1,218
Total Return+21.8%
CAGR~+2.0% / yr
Profit+$218
Based on Jun 8, 2016 · $16.21Split & dividend adjustedNo fees assumed
Want a detailed breakdown?
Try the full calculator with custom amounts, dates & DRIP.
Full Calculator →Try the full calculator with custom amounts, dates & DRIP.
关于价格历史与 OHLCV 数据
Amphastar Pharmaceuticals, Inc.（AMPH）所属板块为 Healthcare，主要交易场所为 NASDAQ。本页行情快照中的最近价为 $19.74。下方的图表与 OHLCV 表可查看历史开高低收与成交量。
年度表现条、同行业相似公司，以及 What If 假设计算器，便于在同一页面对比中长期收益。价格在注明处为拆股等调整后的日线数据；本页内容仅供信息参考，不构成投资建议。
数据：FMP 日线收盘 · 注明处为拆股等调整价 · 不构成投资建议
常见问题
AMPH 价格历史 · 5 个问题日线数据来自市场数据商（Financial Modeling Prep）。拆股等公司行为可能体现在复权序列中；重要决策请以券商或官方披露为准。
AMPH 历史股价FMP 日线复权 OHLCV