PDFS vs. CPRX
PDFS (PDF Solutions, Inc.) and CPRX (Catalyst Pharmaceuticals, Inc.) are both stocks. PDFS operates in Software - Application (Technology), while CPRX operates in Biotechnology (Healthcare). Over the past 10 years, PDFS returned 16.45%/yr vs 44.46%/yr for CPRX. At a 0.18 correlation, their price movements are largely independent.
Performance
PDFS vs. CPRX - Performance Comparison
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Returns By Period
In the year-to-date period, PDFS achieves a 122.78% return, which is significantly higher than CPRX's 34.62% return. Over the past 10 years, PDFS has underperformed CPRX with an annualized return of 16.45%, while CPRX has yielded a comparatively higher 44.46% annualized return.
PDFS
- 1D
- 4.99%
- 1M
- 37.90%
- YTD
- 122.78%
- 6M
- 121.16%
- 1Y
- 206.61%
- 3Y*
- 13.36%
- 5Y*
- 28.09%
- 10Y*
- 16.45%
CPRX
- 1D
- 0.06%
- 1M
- 0.51%
- YTD
- 34.62%
- 6M
- 28.51%
- 1Y
- 42.37%
- 3Y*
- 33.69%
- 5Y*
- 39.02%
- 10Y*
- 44.46%
PDFS vs. CPRX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PDFS PDF Solutions, Inc. | 122.78% | 5.35% | -15.74% | 12.69% | -10.29% | 47.18% | 27.89% | 100.36% | -46.31% | -30.38% |
CPRX Catalyst Pharmaceuticals, Inc. | 34.62% | 11.84% | 24.15% | -9.62% | 174.74% | 102.69% | -10.93% | 95.31% | -50.90% | 272.38% |
Correlation
The correlation between PDFS and CPRX is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.17 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.25 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.31 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.28 |
Correlation (All Time) Calculated using the full available price history since Nov 8, 2006 | 0.18 |
The correlation between PDFS and CPRX shifts across timeframes, from 0.17 (1 year) to 0.31 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
PDFS:
$2.57B
CPRX:
$3.99B
PDFS:
$0.18
CPRX:
$1.74
PDFS:
351.25
CPRX:
18.06
PDFS:
10.90
CPRX:
6.69
PDFS:
9.15
CPRX:
3.94
PDFS:
$231.38M
CPRX:
$596.96M
PDFS:
$167.77M
CPRX:
$378.23M
PDFS:
$23.76M
CPRX:
$313.50M
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Return for Risk
PDFS vs. CPRX — Risk / Return Rank
PDFS
CPRX
PDFS vs. CPRX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PDF Solutions, Inc. (PDFS) and Catalyst Pharmaceuticals, Inc. (CPRX). 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.
| PDFS | CPRX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.28 | ||
| Sortino ratioReturn per unit of downside risk | +1.64 | ||
| Omega ratioGain probability vs. loss probability | 1.46 | 1.26 | +0.21 |
| Calmar ratioReturn relative to maximum drawdown | 8.44 | 3.06 | +5.38 |
| Martin ratioReturn relative to average drawdown | 21.31 | 8.08 | +13.23 |
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Drawdowns
PDFS vs. CPRX - Drawdown Comparison
The maximum PDFS drawdown since its inception was -95.46%, roughly equal to the maximum CPRX drawdown of -94.25%. Use the drawdown chart below to compare losses from any high point for PDFS and CPRX.
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Drawdown Indicators
| PDFS | CPRX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -95.46% | -94.25% | -1.21% |
Max Drawdown (1Y)Largest decline over 1 year | -24.65% | -13.91% | -10.74% |
Max Drawdown (3Y)Largest decline over 3 years | -65.53% | -27.29% | -38.24% |
Max Drawdown (5Y)Largest decline over 5 years | -65.53% | -45.37% | -20.16% |
Max Drawdown (10Y)Largest decline over 10 years | -68.00% | -64.87% | -3.13% |
Current DrawdownCurrent decline from peak | -2.75% | 0.00% | -2.75% |
Average DrawdownAverage peak-to-trough decline | -43.98% | -51.89% | +7.91% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 9.74% | 5.31% | +4.43% |
Volatility
PDFS vs. CPRX - Volatility Comparison
PDF Solutions, Inc. (PDFS) has a higher volatility of 23.85% compared to Catalyst Pharmaceuticals, Inc. (CPRX) at 0.46%. This indicates that PDFS's price experiences larger fluctuations and is considered to be riskier than CPRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDFS | CPRX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 23.85% | 0.46% | +23.39% |
Volatility (6M)Calculated over the trailing 6-month period | 45.57% | 22.84% | +22.73% |
Volatility (1Y)Calculated over the trailing 1-year period | 58.07% | 32.60% | +25.47% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 48.50% | 47.78% | +0.72% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 46.31% | 60.07% | -13.76% |
Dividends
PDFS vs. CPRX - Dividend Comparison
Neither PDFS nor CPRX has paid dividends to shareholders.
Financials
PDFS vs. CPRX - Financials Comparison
This section allows you to compare key financial metrics between PDF Solutions, Inc. and Catalyst Pharmaceuticals, Inc.. 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
PDFS vs. CPRX - Profitability Comparison
PDFS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, PDF Solutions, Inc. reported a gross profit of 43.19M and revenue of 60.13M. Therefore, the gross margin over that period was 71.8%.
CPRX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Catalyst Pharmaceuticals, Inc. reported a gross profit of 0.00 and revenue of 149.39M. Therefore, the gross margin over that period was 0.0%.
PDFS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, PDF Solutions, Inc. reported an operating income of 6.31M and revenue of 60.13M, resulting in an operating margin of 10.5%.
CPRX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Catalyst Pharmaceuticals, Inc. reported an operating income of 73.23M and revenue of 149.39M, resulting in an operating margin of 49.0%.
PDFS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, PDF Solutions, Inc. reported a net income of 4.79M and revenue of 60.13M, resulting in a net margin of 8.0%.
CPRX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Catalyst Pharmaceuticals, Inc. reported a net income of 63.73M and revenue of 149.39M, resulting in a net margin of 42.7%.
Frequently Asked Questions
PDFS and CPRX have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDFS has higher volatility (23.85%) compared to CPRX (0.46%). In terms of maximum drawdown, PDFS dropped -95.46% vs CPRX's -94.25%.
PDFS currently has the higher Sharpe Ratio (3.59 vs 1.31), 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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