RIO vs. CPRX
RIO (Rio Tinto Group) and CPRX (Catalyst Pharmaceuticals, Inc.) are both stocks. RIO operates in Other Industrial Metals & Mining (Basic Materials), while CPRX operates in Biotechnology (Healthcare). Over the past 10 years, RIO returned 21.75%/yr vs 48.01%/yr for CPRX. At a 0.14 correlation, their price movements are largely independent.
Performance
RIO vs. CPRX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, RIO achieves a 29.64% return, which is significantly lower than CPRX's 34.02% return. Over the past 10 years, RIO has underperformed CPRX with an annualized return of 21.75%, while CPRX has yielded a comparatively higher 48.01% annualized return.
RIO
- 1D
- 0.24%
- 1M
- -4.22%
- YTD
- 29.64%
- 6M
- 42.09%
- 1Y
- 80.02%
- 3Y*
- 23.43%
- 5Y*
- 10.94%
- 10Y*
- 21.75%
CPRX
- 1D
- 0.03%
- 1M
- 0.42%
- YTD
- 34.02%
- 6M
- 35.06%
- 1Y
- 20.91%
- 3Y*
- 39.11%
- 5Y*
- 40.76%
- 10Y*
- 48.01%
RIO vs. CPRX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
RIO Rio Tinto Group | 29.64% | 44.47% | -15.36% | 11.06% | 18.48% | -3.67% | 36.22% | 33.18% | -2.93% | 44.87% |
CPRX Catalyst Pharmaceuticals, Inc. | 34.02% | 11.84% | 24.15% | -9.62% | 174.74% | 102.69% | -10.93% | 95.31% | -50.90% | 272.38% |
Correlation
The correlation between RIO and CPRX is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.16 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.19 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.21 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.19 |
Correlation (All Time) Calculated using the full available price history since Nov 9, 2006 | 0.14 |
Fundamentals
RIO:
$165.37B
CPRX:
$3.97B
RIO:
$13.11
CPRX:
$1.74
RIO:
7.70
CPRX:
17.98
RIO:
1.48
CPRX:
6.67
RIO:
2.66
CPRX:
3.92
RIO:
$111.41B
CPRX:
$596.96M
RIO:
$31.10B
CPRX:
$378.23M
RIO:
$40.42B
CPRX:
$313.50M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
RIO vs. CPRX — Risk / Return Rank
RIO
CPRX
RIO vs. CPRX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Rio Tinto Group (RIO) 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.
| RIO | CPRX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.16 | ||
| Sortino ratioReturn per unit of downside risk | +2.24 | ||
| Omega ratioGain probability vs. loss probability | 1.43 | 1.14 | +0.29 |
| Calmar ratioReturn relative to maximum drawdown | 5.30 | 0.77 | +4.53 |
| Martin ratioReturn relative to average drawdown | 20.21 | 1.40 | +18.81 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| RIO | CPRX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.79 | 0.63 | +2.16 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.38 | 0.86 | -0.48 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.71 | 0.80 | -0.08 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.33 | 0.09 | +0.24 |
Drawdowns
RIO vs. CPRX - Drawdown Comparison
The maximum RIO drawdown since its inception was -88.97%, smaller than the maximum CPRX drawdown of -94.25%. Use the drawdown chart below to compare losses from any high point for RIO and CPRX.
Loading charts...
Drawdown Indicators
| RIO | CPRX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -88.97% | -94.25% | +5.28% |
Max Drawdown (1Y)Largest decline over 1 year | -15.19% | -27.29% | +12.10% |
Max Drawdown (3Y)Largest decline over 3 years | -24.19% | -27.29% | +3.10% |
Max Drawdown (5Y)Largest decline over 5 years | -35.25% | -45.37% | +10.12% |
Max Drawdown (10Y)Largest decline over 10 years | -37.47% | -64.87% | +27.40% |
Current DrawdownCurrent decline from peak | -9.92% | -0.16% | -9.76% |
Average DrawdownAverage peak-to-trough decline | -23.77% | -52.02% | +28.25% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.97% | 14.95% | -10.98% |
Volatility
RIO vs. CPRX - Volatility Comparison
Rio Tinto Group (RIO) has a higher volatility of 11.37% compared to Catalyst Pharmaceuticals, Inc. (CPRX) at 0.44%. This indicates that RIO'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.
Loading charts...
Volatility by Period
| RIO | CPRX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.37% | 0.44% | +10.93% |
Volatility (6M)Calculated over the trailing 6-month period | 23.90% | 23.50% | +0.40% |
Volatility (1Y)Calculated over the trailing 1-year period | 28.93% | 33.58% | -4.65% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 29.23% | 47.80% | -18.57% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 30.63% | 60.47% | -29.84% |
Dividends
RIO vs. CPRX - Dividend Comparison
RIO's dividend yield for the trailing twelve months is around 3.98%, while CPRX has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CPRX Catalyst Pharmaceuticals, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
RIO Rio Tinto Group | 3.98% | 4.66% | 7.40% | 5.40% | 10.48% | 10.23% | 5.13% | 7.68% | 6.32% | 4.47% | 3.93% | 7.58% |
Financials
RIO vs. CPRX - Financials Comparison
This section allows you to compare key financial metrics between Rio Tinto Group 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
RIO vs. CPRX - Profitability Comparison
RIO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Rio Tinto Group reported a gross profit of 8.15B and revenue of 30.65B. Therefore, the gross margin over that period was 26.6%.
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%.
RIO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Rio Tinto Group reported an operating income of 8.15B and revenue of 30.65B, resulting in an operating margin of 26.6%.
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%.
RIO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Rio Tinto Group reported a net income of 5.42B and revenue of 30.65B, resulting in a net margin of 17.7%.
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
RIO and CPRX have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
RIO has higher volatility (11.37%) compared to CPRX (0.44%). In terms of maximum drawdown, RIO dropped -88.97% vs CPRX's -94.25%.
RIO currently has the higher Sharpe Ratio (2.79 vs 0.63), 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.
Find the right allocation for RIO and CPRX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer