URNM vs. RMBS
URNM (Sprott Uranium Miners ETF) is Commodity Producers Equities fund tracking the VettaFi Global Uranium Miners Index, while RMBS (Rambus Inc.) is a stock. Over the past 5 years, URNM returned 12.61%/yr vs 49.08%/yr for RMBS. At a 0.35 correlation, their price movements are largely independent.
Performance
URNM vs. RMBS - Performance Comparison
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Returns By Period
In the year-to-date period, URNM achieves a -0.56% return, which is significantly lower than RMBS's 59.50% return.
URNM
- 1D
- 0.53%
- 1M
- -14.56%
- YTD
- -0.56%
- 6M
- -0.53%
- 1Y
- 31.54%
- 3Y*
- 20.14%
- 5Y*
- 12.61%
- 10Y*
- —
RMBS
- 1D
- 1.45%
- 1M
- 8.68%
- YTD
- 59.50%
- 6M
- 55.53%
- 1Y
- 141.61%
- 3Y*
- 32.27%
- 5Y*
- 49.08%
- 10Y*
- 28.27%
URNM vs. RMBS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
URNM Sprott Uranium Miners ETF | -0.56% | 40.78% | -14.13% | 57.80% | -11.86% | 78.32% | 68.36% | 4.05% |
RMBS Rambus Inc. | 59.50% | 73.84% | -22.55% | 90.54% | 21.88% | 68.33% | 26.75% | 9.50% |
Correlation
The correlation between URNM and RMBS is 0.31, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.31 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.31 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.33 |
Correlation (All Time) Calculated using the full available price history since Dec 4, 2019 | 0.35 |
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Return for Risk
URNM vs. RMBS — Risk / Return Rank
URNM
RMBS
URNM vs. RMBS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Sprott Uranium Miners ETF (URNM) and Rambus Inc. (RMBS). 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.
| URNM | RMBS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.27 | ||
| Sortino ratioReturn per unit of downside risk | -1.14 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.32 | -0.18 |
| Calmar ratioReturn relative to maximum drawdown | 0.82 | 3.88 | -3.06 |
| Martin ratioReturn relative to average drawdown | 2.00 | 9.73 | -7.73 |
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Drawdowns
URNM vs. RMBS - Drawdown Comparison
The maximum URNM drawdown since its inception was -50.78%, smaller than the maximum RMBS drawdown of -97.16%. Use the drawdown chart below to compare losses from any high point for URNM and RMBS.
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Drawdown Indicators
| URNM | RMBS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -50.78% | -97.16% | +46.38% |
Max Drawdown (1Y)Largest decline over 1 year | -38.72% | -36.69% | -2.03% |
Max Drawdown (3Y)Largest decline over 3 years | -50.78% | -48.83% | -1.95% |
Max Drawdown (5Y)Largest decline over 5 years | -50.78% | -48.83% | -1.95% |
Max Drawdown (10Y)Largest decline over 10 years | — | -52.95% | — |
Current DrawdownCurrent decline from peak | -35.02% | -14.12% | -20.90% |
Average DrawdownAverage peak-to-trough decline | -18.09% | -74.88% | +56.79% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 15.78% | 14.62% | +1.16% |
Volatility
URNM vs. RMBS - Volatility Comparison
The current volatility for Sprott Uranium Miners ETF (URNM) is 17.40%, while Rambus Inc. (RMBS) has a volatility of 28.11%. This indicates that URNM experiences smaller price fluctuations and is considered to be less risky than RMBS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| URNM | RMBS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 17.40% | 28.11% | -10.71% |
Volatility (6M)Calculated over the trailing 6-month period | 41.84% | 62.19% | -20.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.48% | 76.00% | -23.52% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 48.58% | 55.40% | -6.82% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 47.04% | 46.30% | +0.74% |
Dividends
URNM vs. RMBS - Dividend Comparison
URNM's dividend yield for the trailing twelve months is around 3.19%, while RMBS has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|---|
RMBS Rambus Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
URNM Sprott Uranium Miners ETF | 3.19% | 3.18% | 3.18% | 3.63% | 0.00% | 6.70% | 2.57% |
Frequently Asked Questions
URNM and RMBS have a correlation of 0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
RMBS has higher volatility (28.11%) compared to URNM (17.40%). In terms of maximum drawdown, URNM dropped -50.78% vs RMBS's -97.16%.
RMBS currently has the higher Sharpe Ratio (1.87 vs 0.60), 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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