TAN vs. BITI

Last updated Jul 14, 2026

TAN (Invesco Solar ETF) and BITI (ProShares Short Bitcoin ETF) are both exchange-traded funds - TAN is a Alternative Energy Equities fund tracking the MAC Global Solar Energy Index, while BITI is a Cryptocurrency fund tracking the Bloomberg Bitcoin Index. Both are passively managed. Over the past 3 years, TAN returned -8.92%/yr vs -30.65%/yr for BITI. At a correlation of -0.27, they often move in opposite directions. TAN charges 0.69%/yr vs 1.03%/yr for BITI.

Performance

TAN vs. BITI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Solar ETF (TAN) and ProShares Short Bitcoin ETF (BITI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TAN achieves a 8.14% return, which is significantly lower than BITI's 28.75% return.

TAN

• 1D: -3.35%
• 1M: -15.72%
• 6M: 1.88%
• YTD: 8.14%
• 1Y: 39.42%
• 3Y*: -8.92%
• 5Y*: -8.62%
• 10Y*: 10.44%

BITI

• 1D: 2.65%
• 1M: 1.46%
• 6M: 34.68%
• YTD: 28.75%
• 1Y: 68.34%
• 3Y*: -30.65%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

TAN vs. BITI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
TAN Invesco Solar ETF	8.14%	48.31%	-37.61%	-26.79%	4.01%
BITI ProShares Short Bitcoin ETF	28.75%	-1.76%	-62.60%	-66.17%	3.39%

Correlation

The correlation between TAN and BITI is -0.38, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.38
Correlation (3Y) Calculated over the trailing 3-year period	-0.25
Correlation (All Time) Calculated using the full available price history since Jun 21, 2022	-0.27

The correlation between TAN and BITI shifts across timeframes, from -0.38 (1 year) to -0.25 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

TAN vs. BITI — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

TAN

TAN Risk / Return Rank: 36
TAN Sharpe Ratio Rank: 36
TAN Sortino Ratio Rank: 38
TAN Omega Ratio Rank: 34
TAN Calmar Ratio Rank: 35
TAN Martin Ratio Rank: 38

BITI

BITI Risk / Return Rank: 57
BITI Sharpe Ratio Rank: 58
BITI Sortino Ratio Rank: 55
BITI Omega Ratio Rank: 50
BITI Calmar Ratio Rank: 68
BITI Martin Ratio Rank: 51

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

TAN vs. BITI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Solar ETF (TAN) and ProShares Short Bitcoin ETF (BITI). 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.

	TAN	BITI	Difference
Sharpe ratio: Return per unit of total volatility	1.03	1.56	-0.53
Sortino ratio: Return per unit of downside risk	1.62	2.13	-0.50
Omega ratio: Gain probability vs. loss probability	1.19	1.26	-0.07
Calmar ratio: Return relative to maximum drawdown	1.41	2.72	-1.31
Martin ratio: Return relative to average drawdown	4.62	6.78	-2.16

TAN vs. BITI - Sharpe Ratio Comparison

The current TAN Sharpe Ratio is 1.03, which is lower than the BITI Sharpe Ratio of 1.56. The chart below compares the historical Sharpe Ratios of TAN and BITI, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

TAN vs. BITI - Drawdown Comparison

The maximum TAN drawdown since its inception was -95.29%, roughly equal to the maximum BITI drawdown of -92.16%. Use the drawdown chart below to compare losses from any high point for TAN and BITI.

Drawdown Indicators

	TAN	BITI	Difference
Max Drawdown Largest peak-to-trough decline	-95.29%	-92.16%	-3.13%
Max Drawdown (1Y) Largest decline over 1 year	-28.15%	-25.28%	-2.87%
Max Drawdown (3Y) Largest decline over 3 years	-64.40%	-84.63%	+20.23%
Max Drawdown (5Y) Largest decline over 5 years	-73.95%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-78.53%	—	—
Current Drawdown Current decline from peak	-75.60%	-85.94%	+10.34%
Average Drawdown Average peak-to-trough decline	-78.46%	-68.34%	-10.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.56%	10.11%	-1.55%

Volatility

TAN vs. BITI - Volatility Comparison

Invesco Solar ETF (TAN) has a higher volatility of 12.44% compared to ProShares Short Bitcoin ETF (BITI) at 11.38%. This indicates that TAN's price experiences larger fluctuations and is considered to be riskier than BITI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TAN	BITI	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.44%	11.38%	+1.06%
Volatility (6M) Calculated over the trailing 6-month period	28.91%	34.25%	-5.34%
Volatility (1Y) Calculated over the trailing 1-year period	38.45%	44.14%	-5.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	40.14%	52.28%	-12.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.18%	52.28%	-14.10%

TAN vs. BITI - Expense Ratio Comparison

TAN has a 0.69% expense ratio, which is lower than BITI's 1.03% expense ratio.

Dividends

TAN vs. BITI - Dividend Comparison

TAN has not paid dividends to shareholders, while BITI's dividend yield for the trailing twelve months is around 15.10%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BITI ProShares Short Bitcoin ETF	15.10%	1.60%	3.91%	3.33%	0.06%	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

Can I hold both TAN and BITI in my portfolio?

TAN and BITI have a correlation of -0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TAN or BITI?

TAN has higher volatility (12.44%) compared to BITI (11.38%). In terms of maximum drawdown, TAN dropped -95.29% vs BITI's -92.16%.

Which ETF is better, TAN or BITI?

On 3-year performance, TAN leads with -8.92% vs -30.65% for BITI. On fees, TAN is cheaper at 0.69% per year. On volatility, BITI has been the lower-risk option at 11.38%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TAN or BITI?

Over the 3-year period, TAN has performed better with a -8.92% return vs -30.65%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TAN or BITI?

TAN is cheaper with a 0.69% expense ratio, compared with 1.03% for BITI.

Which ETF pays a higher dividend yield, TAN or BITI?

BITI has the higher dividend yield at 15.10%, compared with 0.00% for TAN.

What is the main difference between TAN and BITI?

TAN is categorized as Alternative Energy Equities, while BITI is Cryptocurrency. TAN tracks MAC Global Solar Energy Index, while BITI tracks Bloomberg Bitcoin Index. They also come from different issuers: Invesco and ProShares. Their fees differ too: 0.69% for TAN and 1.03% for BITI.

Which has better risk-adjusted returns?

BITI currently has the higher Sharpe Ratio (1.56 vs 1.03), 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.