BNTX vs. TAN
BNTX (BioNTech SE) is a stock, while TAN (Invesco Solar ETF) is Alternative Energy Equities fund tracking the MAC Global Solar Energy Index. Over the past 5 years, BNTX returned -16.74%/yr vs -7.42%/yr for TAN. At a 0.27 correlation, their price movements are largely independent.
Performance
BNTX vs. TAN - Performance Comparison
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Returns By Period
In the year-to-date period, BNTX achieves a -5.46% return, which is significantly lower than TAN's 17.81% return.
BNTX
- 1D
- -0.23%
- 1M
- -2.44%
- YTD
- -5.46%
- 6M
- -5.29%
- 1Y
- -14.12%
- 3Y*
- -5.58%
- 5Y*
- -16.74%
- 10Y*
- —
TAN
- 1D
- -0.50%
- 1M
- -16.08%
- YTD
- 17.81%
- 6M
- 13.78%
- 1Y
- 72.90%
- 3Y*
- -5.24%
- 5Y*
- -7.42%
- 10Y*
- 12.52%
BNTX vs. TAN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
BNTX BioNTech SE | -5.46% | -16.45% | 7.97% | -29.74% | -40.40% | 216.24% | 140.61% | 105.33% |
TAN Invesco Solar ETF | 17.81% | 48.31% | -37.61% | -26.79% | -5.24% | -25.10% | 233.96% | 5.97% |
Correlation
The correlation between BNTX and TAN is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.26 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.28 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.30 |
Correlation (All Time) Calculated using the full available price history since Oct 10, 2019 | 0.27 |
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Return for Risk
BNTX vs. TAN — Risk / Return Rank
BNTX
TAN
BNTX vs. TAN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BioNTech SE (BNTX) 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.
| BNTX | TAN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.26 | ||
| Sortino ratioReturn per unit of downside risk | -2.79 | ||
| Omega ratioGain probability vs. loss probability | 0.97 | 1.30 | -0.33 |
| Calmar ratioReturn relative to maximum drawdown | -0.48 | 3.37 | -3.85 |
| Martin ratioReturn relative to average drawdown | -0.93 | 10.58 | -11.51 |
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Drawdowns
BNTX vs. TAN - Drawdown Comparison
The maximum BNTX drawdown since its inception was -82.08%, smaller than the maximum TAN drawdown of -95.29%. Use the drawdown chart below to compare losses from any high point for BNTX and TAN.
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Drawdown Indicators
| BNTX | TAN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -82.08% | -95.29% | +13.21% |
Max Drawdown (1Y)Largest decline over 1 year | -29.71% | -21.72% | -7.99% |
Max Drawdown (3Y)Largest decline over 3 years | -37.35% | -64.40% | +27.05% |
Max Drawdown (5Y)Largest decline over 5 years | -82.08% | -73.95% | -8.13% |
Max Drawdown (10Y)Largest decline over 10 years | — | -78.53% | — |
Current DrawdownCurrent decline from peak | -79.42% | -73.42% | -6.00% |
Average DrawdownAverage peak-to-trough decline | -56.35% | -78.47% | +22.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 15.29% | 6.91% | +8.38% |
Volatility
BNTX vs. TAN - Volatility Comparison
The current volatility for BioNTech SE (BNTX) is 9.28%, while Invesco Solar ETF (TAN) has a volatility of 15.56%. This indicates that BNTX 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
| BNTX | TAN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.28% | 15.56% | -6.28% |
Volatility (6M)Calculated over the trailing 6-month period | 34.25% | 28.39% | +5.86% |
Volatility (1Y)Calculated over the trailing 1-year period | 41.00% | 38.32% | +2.68% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 54.95% | 40.14% | +14.81% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 76.19% | 38.15% | +38.04% |
Dividends
BNTX vs. TAN - Dividend Comparison
Neither BNTX nor TAN has paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BNTX BioNTech SE | 0.00% | 0.00% | 0.00% | 0.00% | 2.43% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
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
BNTX and TAN have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TAN has higher volatility (15.56%) compared to BNTX (9.28%). In terms of maximum drawdown, BNTX dropped -82.08% vs TAN's -95.29%.
TAN currently has the higher Sharpe Ratio (1.91 vs -0.35), 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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