AMPH vs. CORT
AMPH (Amphastar Pharmaceuticals, Inc.) and CORT (Corcept Therapeutics Incorporated) are both stocks. Both are in the Healthcare sector — AMPH in Drug Manufacturers - Specialty & Generic, CORT in Biotechnology. Over the past 10 years, AMPH returned 2.27%/yr vs 31.36%/yr for CORT. At a 0.31 correlation, their price movements are largely independent.
Performance
AMPH vs. CORT - Performance Comparison
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Returns By Period
In the year-to-date period, AMPH achieves a -27.07% return, which is significantly lower than CORT's 129.45% return. Over the past 10 years, AMPH has underperformed CORT with an annualized return of 2.27%, while CORT has yielded a comparatively higher 31.36% annualized return.
AMPH
- 1D
- 6.55%
- 1M
- 6.08%
- YTD
- -27.07%
- 6M
- -26.16%
- 1Y
- -20.87%
- 3Y*
- -30.09%
- 5Y*
- -1.33%
- 10Y*
- 2.27%
CORT
- 1D
- 0.18%
- 1M
- 32.60%
- YTD
- 129.45%
- 6M
- -2.61%
- 1Y
- 7.50%
- 3Y*
- 54.01%
- 5Y*
- 28.64%
- 10Y*
- 31.36%
AMPH vs. CORT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMPH Amphastar Pharmaceuticals, Inc. | -27.07% | -27.88% | -39.97% | 120.74% | 20.31% | 15.81% | 4.25% | -3.07% | 3.43% | 4.45% |
CORT Corcept Therapeutics Incorporated | 129.45% | -30.94% | 55.14% | 59.92% | 2.58% | -24.31% | 116.20% | -9.43% | -26.02% | 148.76% |
Correlation
The correlation between AMPH and CORT is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.29 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.31 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.29 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.30 |
Correlation (All Time) Calculated using the full available price history since Jun 25, 2014 | 0.31 |
Fundamentals
AMPH:
$907.32M
CORT:
$8.34B
AMPH:
$1.67
CORT:
$0.41
AMPH:
11.67
CORT:
194.71
AMPH:
0.62
CORT:
96.99
AMPH:
1.28
CORT:
12.05
AMPH:
1.17
CORT:
13.07
AMPH:
$720.53M
CORT:
$769.10M
AMPH:
$341.13M
CORT:
$755.64M
AMPH:
$155.96M
CORT:
$3.66M
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Return for Risk
AMPH vs. CORT — Risk / Return Rank
AMPH
CORT
AMPH vs. CORT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amphastar Pharmaceuticals, Inc. (AMPH) and Corcept Therapeutics Incorporated (CORT). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| AMPH | CORT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.48 | ||
| Sortino ratioReturn per unit of downside risk | -0.89 | ||
| Omega ratioGain probability vs. loss probability | 0.97 | 1.14 | -0.17 |
| Calmar ratioReturn relative to maximum drawdown | -0.46 | 0.12 | -0.58 |
| Martin ratioReturn relative to average drawdown | -0.92 | 0.21 | -1.13 |
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Drawdowns
AMPH vs. CORT - Drawdown Comparison
The maximum AMPH drawdown since its inception was -74.05%, smaller than the maximum CORT drawdown of -94.29%. Use the drawdown chart below to compare losses from any high point for AMPH and CORT.
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Drawdown Indicators
| AMPH | CORT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.05% | -94.29% | +20.24% |
Max Drawdown (1Y)Largest decline over 1 year | -45.25% | -64.40% | +19.15% |
Max Drawdown (3Y)Largest decline over 3 years | -74.05% | -71.85% | -2.20% |
Max Drawdown (5Y)Largest decline over 5 years | -74.05% | -71.85% | -2.20% |
Max Drawdown (10Y)Largest decline over 10 years | -74.05% | -71.85% | -2.20% |
Current DrawdownCurrent decline from peak | -69.95% | -30.09% | -39.86% |
Average DrawdownAverage peak-to-trough decline | -24.17% | -53.42% | +29.25% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 22.82% | 35.40% | -12.58% |
Volatility
AMPH vs. CORT - Volatility Comparison
The current volatility for Amphastar Pharmaceuticals, Inc. (AMPH) is 12.78%, while Corcept Therapeutics Incorporated (CORT) has a volatility of 13.66%. This indicates that AMPH experiences smaller price fluctuations and is considered to be less risky than CORT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMPH | CORT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.78% | 13.66% | -0.88% |
Volatility (6M)Calculated over the trailing 6-month period | 46.51% | 85.06% | -38.55% |
Volatility (1Y)Calculated over the trailing 1-year period | 54.26% | 77.02% | -22.76% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 45.25% | 74.59% | -29.34% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 42.76% | 67.21% | -24.45% |
Dividends
AMPH vs. CORT - Dividend Comparison
Neither AMPH nor CORT has paid dividends to shareholders.
Financials
AMPH vs. CORT - Financials Comparison
This section allows you to compare key financial metrics between Amphastar Pharmaceuticals, Inc. and Corcept Therapeutics Incorporated. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
AMPH vs. CORT - Profitability Comparison
AMPH - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Amphastar Pharmaceuticals, Inc. reported a gross profit of 70.32M and revenue of 171.17M. Therefore, the gross margin over that period was 41.1%.
CORT - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Corcept Therapeutics Incorporated reported a gross profit of 162.02M and revenue of 164.90M. Therefore, the gross margin over that period was 98.3%.
AMPH - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Amphastar Pharmaceuticals, Inc. reported an operating income of 13.63M and revenue of 171.17M, resulting in an operating margin of 8.0%.
CORT - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Corcept Therapeutics Incorporated reported an operating income of -49.60M and revenue of 164.90M, resulting in an operating margin of -30.1%.
AMPH - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Amphastar Pharmaceuticals, Inc. reported a net income of 6.42M and revenue of 171.17M, resulting in a net margin of 3.8%.
CORT - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Corcept Therapeutics Incorporated reported a net income of -31.20M and revenue of 164.90M, resulting in a net margin of -18.9%.
Frequently Asked Questions
AMPH and CORT have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CORT has higher volatility (13.66%) compared to AMPH (12.78%). In terms of maximum drawdown, AMPH dropped -74.05% vs CORT's -94.29%.
CORT currently has the higher Sharpe Ratio (0.10 vs -0.39), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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