IMRA vs. BITI

Last updated Jul 17, 2026

IMRA (Bitwise MARA Option Income Strategy ETF) and BITI (ProShares Short Bitcoin ETF) are both exchange-traded funds - IMRA is a Derivative Income fund actively managed by Bitwise, while BITI is a Cryptocurrency fund tracking the Bloomberg Bitcoin Index. IMRA is actively managed, while BITI is passively managed. Over the past year, IMRA returned -46.57% vs 64.61% for BITI. At a correlation of -0.63, they often move in opposite directions. IMRA charges 0.98%/yr vs 1.03%/yr for BITI.

Performance

IMRA vs. BITI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bitwise MARA Option Income Strategy ETF (IMRA) 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, IMRA achieves a 13.16% return, which is significantly lower than BITI's 24.48% return.

IMRA

• 1D: -5.14%
• 1M: -12.18%
• 6M: -3.16%
• YTD: 13.16%
• 1Y: -46.57%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BITI

• 1D: 1.13%
• 1M: 1.49%
• 6M: 35.86%
• YTD: 24.48%
• 1Y: 64.61%
• 3Y*: -31.62%
• 5Y*: —
• 10Y*: —

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

IMRA vs. BITI - Yearly Performance Comparison

	2026 (YTD)	2025
IMRA Bitwise MARA Option Income Strategy ETF	13.16%	-34.78%
BITI ProShares Short Bitcoin ETF	24.48%	-5.55%

Correlation

The correlation between IMRA and BITI is -0.63, 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	-0.63
Correlation (All Time) Calculated using the full available price history since Apr 3, 2025	-0.63

The correlation between IMRA and BITI has been stable across timeframes, ranging from -0.63 to -0.63 - a consistent structural relationship.

Return for Risk

IMRA vs. BITI — Risk / Return Rank

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

IMRA

IMRA Risk / Return Rank: 3
IMRA Sharpe Ratio Rank: 3
IMRA Sortino Ratio Rank: 4
IMRA Omega Ratio Rank: 3
IMRA Calmar Ratio Rank: 3
IMRA Martin Ratio Rank: 4

BITI

BITI Risk / Return Rank: 52
BITI Sharpe Ratio Rank: 53
BITI Sortino Ratio Rank: 50
BITI Omega Ratio Rank: 46
BITI Calmar Ratio Rank: 64
BITI Martin Ratio Rank: 48

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.

IMRA vs. BITI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bitwise MARA Option Income Strategy ETF (IMRA) 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.

	IMRA	BITI	Difference
Sharpe ratio: Return per unit of total volatility	-0.76	1.47	-2.24
Sortino ratio: Return per unit of downside risk	-0.99	2.04	-3.03
Omega ratio: Gain probability vs. loss probability	0.88	1.25	-0.36
Calmar ratio: Return relative to maximum drawdown	-0.76	2.57	-3.33
Martin ratio: Return relative to average drawdown	-1.15	6.38	-7.52

IMRA vs. BITI - Sharpe Ratio Comparison

The current IMRA Sharpe Ratio is -0.76, which is lower than the BITI Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of IMRA 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

IMRA vs. BITI - Drawdown Comparison

The maximum IMRA drawdown since its inception was -61.55%, smaller than the maximum BITI drawdown of -92.16%. Use the drawdown chart below to compare losses from any high point for IMRA and BITI.

Drawdown Indicators

	IMRA	BITI	Difference
Max Drawdown Largest peak-to-trough decline	-61.55%	-92.16%	+30.61%
Max Drawdown (1Y) Largest decline over 1 year	-61.55%	-25.28%	-36.27%
Max Drawdown (3Y) Largest decline over 3 years	—	-84.63%	—
Current Drawdown Current decline from peak	-48.49%	-86.41%	+37.92%
Average Drawdown Average peak-to-trough decline	-29.52%	-68.40%	+38.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	40.69%	10.16%	+30.53%

Volatility

IMRA vs. BITI - Volatility Comparison

Bitwise MARA Option Income Strategy ETF (IMRA) has a higher volatility of 14.31% compared to ProShares Short Bitcoin ETF (BITI) at 10.76%. This indicates that IMRA'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

	IMRA	BITI	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.31%	10.76%	+3.55%
Volatility (6M) Calculated over the trailing 6-month period	43.73%	34.28%	+9.45%
Volatility (1Y) Calculated over the trailing 1-year period	61.21%	44.15%	+17.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	60.64%	52.24%	+8.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	60.64%	52.24%	+8.40%

IMRA vs. BITI - Expense Ratio Comparison

IMRA has a 0.98% expense ratio, which is lower than BITI's 1.03% expense ratio.

Dividends

IMRA vs. BITI - Dividend Comparison

IMRA's dividend yield for the trailing twelve months is around 114.25%, more than BITI's 15.62% yield.

Position	TTM	2025	2024	2023	2022
BITI ProShares Short Bitcoin ETF	15.62%	1.60%	3.91%	3.33%	0.06%
IMRA Bitwise MARA Option Income Strategy ETF	114.25%	188.74%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IMRA and BITI in my portfolio?

IMRA and BITI have a correlation of -0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IMRA or BITI?

IMRA has higher volatility (14.31%) compared to BITI (10.76%). In terms of maximum drawdown, IMRA dropped -61.55% vs BITI's -92.16%.

Which ETF is better, IMRA or BITI?

On 1-year performance, BITI leads with 64.61% vs -46.57% for IMRA. On fees, IMRA is cheaper at 0.98% per year. On volatility, BITI has been the lower-risk option at 10.76%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IMRA or BITI?

Over the 1-year period, BITI has performed better with a 64.61% return vs -46.57%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IMRA or BITI?

IMRA is cheaper with a 0.98% expense ratio, compared with 1.03% for BITI.

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

IMRA has the higher dividend yield at 114.25%, compared with 15.62% for BITI.

What is the main difference between IMRA and BITI?

IMRA is categorized as Derivative Income, while BITI is Cryptocurrency. They also come from different issuers: Bitwise and ProShares. Their fees differ too: 0.98% for IMRA and 1.03% for BITI.

Which has better risk-adjusted returns?

BITI currently has the higher Sharpe Ratio (1.47 vs -0.76), 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.