OBTC vs. BTCZ

Last updated Jun 6, 2026

OBTC (Osprey Bitcoin Trust) and BTCZ (T-Rex 2X Inverse Bitcoin Daily Target ETF) are both Cryptocurrency funds. OBTC is passively managed, while BTCZ is actively managed. Over the past year, OBTC returned -32.02% vs 67.42% for BTCZ. At a correlation of -0.93, they often move in opposite directions. OBTC charges 0.49%/yr vs 0.95%/yr for BTCZ.

Performance

OBTC vs. BTCZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Osprey Bitcoin Trust (OBTC) and T-Rex 2X Inverse Bitcoin Daily Target ETF (BTCZ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OBTC achieves a -31.16% return, which is significantly lower than BTCZ's 54.87% return.

OBTC

• 1D: -5.16%
• 1M: -26.03%
• YTD: -31.16%
• 6M: -29.55%
• 1Y: -32.02%
• 3Y*: 55.06%
• 5Y*: 6.73%
• 10Y*: —

BTCZ

• 1D: 10.70%
• 1M: 77.17%
• YTD: 54.87%
• 6M: 58.86%
• 1Y: 67.42%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

OBTC vs. BTCZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024
OBTC Osprey Bitcoin Trust	-31.16%	-1.87%	59.18%
BTCZ T-Rex 2X Inverse Bitcoin Daily Target ETF	54.87%	-29.11%	-76.58%

Correlation

The correlation between OBTC and BTCZ is -0.92, 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	-0.92
Correlation (All Time) Calculated using the full available price history since Jul 11, 2024	-0.93

The correlation between OBTC and BTCZ has been stable across timeframes, ranging from -0.93 to -0.92 - a consistent structural relationship.

Return for Risk

OBTC vs. BTCZ — Risk / Return Rank

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

OBTC

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

BTCZ

BTCZ Risk / Return Rank: 27
BTCZ Sharpe Ratio Rank: 23
BTCZ Sortino Ratio Rank: 30
BTCZ Omega Ratio Rank: 29
BTCZ Calmar Ratio Rank: 30
BTCZ Martin Ratio Rank: 23

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.

OBTC vs. BTCZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Osprey Bitcoin Trust (OBTC) and T-Rex 2X Inverse Bitcoin Daily Target ETF (BTCZ). 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.

	OBTC	BTCZ	Difference
Sharpe ratio: Return per unit of total volatility	-0.72	0.77	-1.49
Sortino ratio: Return per unit of downside risk	-0.89	1.53	-2.42
Omega ratio: Gain probability vs. loss probability	0.90	1.18	-0.28
Calmar ratio: Return relative to maximum drawdown	-0.67	1.38	-2.05
Martin ratio: Return relative to average drawdown	-1.26	2.75	-4.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OBTC vs. BTCZ - Sharpe Ratio Comparison

The current OBTC Sharpe Ratio is -0.72, which is lower than the BTCZ Sharpe Ratio of 0.77. The chart below compares the historical Sharpe Ratios of OBTC and BTCZ, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	OBTC	BTCZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.72	0.77	-1.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.12	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.23	-0.53	+0.30

Drawdowns

OBTC vs. BTCZ - Drawdown Comparison

The maximum OBTC drawdown since its inception was -94.50%, roughly equal to the maximum BTCZ drawdown of -91.06%. Use the drawdown chart below to compare losses from any high point for OBTC and BTCZ.

Drawdown Indicators

	OBTC	BTCZ	Difference
Max Drawdown Largest peak-to-trough decline	-94.50%	-91.06%	-3.44%
Max Drawdown (1Y) Largest decline over 1 year	-48.14%	-49.02%	+0.88%
Max Drawdown (3Y) Largest decline over 3 years	-48.14%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-83.76%	—	—
Current Drawdown Current decline from peak	-65.62%	-75.02%	+9.40%
Average Drawdown Average peak-to-trough decline	-69.62%	-73.73%	+4.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	25.40%	25.77%	-0.37%

Volatility

OBTC vs. BTCZ - Volatility Comparison

The current volatility for Osprey Bitcoin Trust (OBTC) is 9.93%, while T-Rex 2X Inverse Bitcoin Daily Target ETF (BTCZ) has a volatility of 18.81%. This indicates that OBTC experiences smaller price fluctuations and is considered to be less risky than BTCZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OBTC	BTCZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.93%	18.81%	-8.88%
Volatility (6M) Calculated over the trailing 6-month period	34.48%	67.75%	-33.27%
Volatility (1Y) Calculated over the trailing 1-year period	44.58%	88.13%	-43.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	58.14%	97.32%	-39.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	71.55%	97.32%	-25.77%

OBTC vs. BTCZ - Expense Ratio Comparison

OBTC has a 0.49% expense ratio, which is lower than BTCZ's 0.95% expense ratio.

Dividends

OBTC vs. BTCZ - Dividend Comparison

OBTC has not paid dividends to shareholders, while BTCZ's dividend yield for the trailing twelve months is around 0.01%.

Position	TTM	2025	2024
BTCZ T-Rex 2X Inverse Bitcoin Daily Target ETF	0.01%	0.02%	0.08%
OBTC Osprey Bitcoin Trust	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both OBTC and BTCZ in my portfolio?

OBTC and BTCZ have a correlation of -0.92, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OBTC or BTCZ?

BTCZ has higher volatility (18.81%) compared to OBTC (9.93%). In terms of maximum drawdown, OBTC dropped -94.50% vs BTCZ's -91.06%.

Which ETF is better, OBTC or BTCZ?

On 1-year performance, BTCZ leads with 67.42% vs -32.02% for OBTC. On fees, OBTC is cheaper at 0.49% per year. On volatility, OBTC has been the lower-risk option at 9.93%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OBTC or BTCZ?

Over the 1-year period, BTCZ has performed better with a 67.42% return vs -32.02%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OBTC or BTCZ?

OBTC is cheaper with a 0.49% expense ratio, compared with 0.95% for BTCZ.

Which ETF pays a higher dividend yield, OBTC or BTCZ?

BTCZ has the higher dividend yield at 0.01%, compared with 0.00% for OBTC.

What is the main difference between OBTC and BTCZ?

They also come from different issuers: Osprey Funds and T-Rex. Their fees differ too: 0.49% for OBTC and 0.95% for BTCZ.

Which has better risk-adjusted returns?

BTCZ currently has the higher Sharpe Ratio (0.77 vs -0.72), 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.