MRK vs. TAN
MRK (Merck & Co., Inc.) is a stock, while TAN (Invesco Solar ETF) is Alternative Energy Equities fund tracking the MAC Global Solar Energy Index. Over the past 10 years, MRK returned 11.59%/yr vs 13.06%/yr for TAN. At a 0.23 correlation, their price movements are largely independent.
Performance
MRK vs. TAN - Performance Comparison
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Returns By Period
In the year-to-date period, MRK achieves a 13.94% return, which is significantly lower than TAN's 28.32% return. Over the past 10 years, MRK has underperformed TAN with an annualized return of 11.59%, while TAN has yielded a comparatively higher 13.06% annualized return.
MRK
- 1D
- -1.42%
- 1M
- 6.89%
- YTD
- 13.94%
- 6M
- 20.60%
- 1Y
- 50.99%
- 3Y*
- 5.87%
- 5Y*
- 12.81%
- 10Y*
- 11.59%
TAN
- 1D
- 1.17%
- 1M
- -2.96%
- YTD
- 28.32%
- 6M
- 31.75%
- 1Y
- 80.24%
- 3Y*
- -4.29%
- 5Y*
- -4.50%
- 10Y*
- 13.06%
MRK vs. TAN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MRK Merck & Co., Inc. | 13.94% | 9.79% | -6.26% | 1.01% | 49.42% | 1.75% | -7.20% | 22.27% | 39.95% | -1.49% |
TAN Invesco Solar ETF | 28.32% | 48.31% | -37.61% | -26.79% | -5.24% | -25.10% | 233.96% | 66.53% | -25.67% | 54.38% |
Correlation
The correlation between MRK and TAN is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.13 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.05 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.11 |
Correlation (All Time) Calculated using the full available price history since Apr 15, 2008 | 0.23 |
The correlation between MRK and TAN shifts across timeframes, from 0.05 (5 years) to 0.23 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
MRK vs. TAN — Risk / Return Rank
MRK
TAN
MRK vs. TAN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Merck & Co., Inc. (MRK) and Invesco Solar ETF (TAN). 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.
| MRK | TAN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.29 | ||
| Sortino ratioReturn per unit of downside risk | +0.05 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.34 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 4.49 | 4.23 | +0.26 |
| Martin ratioReturn relative to average drawdown | 11.22 | 13.77 | -2.55 |
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Drawdowns
MRK vs. TAN - Drawdown Comparison
The maximum MRK drawdown since its inception was -68.61%, smaller than the maximum TAN drawdown of -95.29%. Use the drawdown chart below to compare losses from any high point for MRK and TAN.
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Drawdown Indicators
| MRK | TAN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -68.61% | -95.29% | +26.68% |
Max Drawdown (1Y)Largest decline over 1 year | -11.37% | -19.98% | +8.61% |
Max Drawdown (3Y)Largest decline over 3 years | -43.44% | -64.40% | +20.96% |
Max Drawdown (5Y)Largest decline over 5 years | -43.44% | -73.95% | +30.51% |
Max Drawdown (10Y)Largest decline over 10 years | -43.44% | -78.53% | +35.09% |
Current DrawdownCurrent decline from peak | -5.03% | -71.05% | +66.02% |
Average DrawdownAverage peak-to-trough decline | -18.83% | -78.48% | +59.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.54% | 6.13% | -1.59% |
Volatility
MRK vs. TAN - Volatility Comparison
The current volatility for Merck & Co., Inc. (MRK) is 9.57%, while Invesco Solar ETF (TAN) has a volatility of 16.32%. This indicates that MRK experiences smaller price fluctuations and is considered to be less risky than TAN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MRK | TAN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.57% | 16.32% | -6.75% |
Volatility (6M)Calculated over the trailing 6-month period | 18.04% | 28.02% | -9.98% |
Volatility (1Y)Calculated over the trailing 1-year period | 27.18% | 39.00% | -11.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.66% | 40.04% | -16.38% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.96% | 38.11% | -15.15% |
Dividends
MRK vs. TAN - Dividend Comparison
MRK's dividend yield for the trailing twelve months is around 2.79%, while TAN has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MRK Merck & Co., Inc. | 2.79% | 3.12% | 3.14% | 2.72% | 2.52% | 3.41% | 3.03% | 2.48% | 2.60% | 3.36% | 3.14% | 3.43% |
TAN Invesco Solar ETF | 0.00% | 0.00% | 0.50% | 0.09% | 0.00% | 0.00% | 0.09% | 0.30% | 0.69% | 1.77% | 5.04% | 1.60% |
Frequently Asked Questions
MRK and TAN have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TAN has higher volatility (16.32%) compared to MRK (9.57%). In terms of maximum drawdown, MRK dropped -68.61% vs TAN's -95.29%.
TAN currently has the higher Sharpe Ratio (2.17 vs 1.88), 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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