OEF vs. BITI

Last updated Jul 14, 2026

OEF (iShares S&P 100 ETF) and BITI (ProShares Short Bitcoin ETF) are both exchange-traded funds - OEF is a Large Cap Blend Equities fund tracking the S&P 100 Index, while BITI is a Cryptocurrency fund tracking the Bloomberg Bitcoin Index. Both are passively managed. Over the past 3 years, OEF returned 22.03%/yr vs -30.65%/yr for BITI. At a correlation of -0.37, they often move in opposite directions. OEF charges 0.20%/yr vs 1.03%/yr for BITI.

Performance

OEF vs. BITI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares S&P 100 ETF (OEF) 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, OEF achieves a 8.23% return, which is significantly lower than BITI's 28.75% return.

OEF

• 1D: -0.78%
• 1M: 1.58%
• 6M: 7.11%
• YTD: 8.23%
• 1Y: 21.43%
• 3Y*: 22.03%
• 5Y*: 14.20%
• 10Y*: 16.21%

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)

OEF vs. BITI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
OEF iShares S&P 100 ETF	8.23%	19.80%	30.74%	32.71%	2.82%
BITI ProShares Short Bitcoin ETF	28.75%	-1.76%	-62.60%	-66.17%	3.39%

Correlation

The correlation between OEF and BITI is -0.46, 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	-0.46
Correlation (3Y) Calculated over the trailing 3-year period	-0.36
Correlation (All Time) Calculated using the full available price history since Jun 21, 2022	-0.37

The correlation between OEF and BITI shifts across timeframes, from -0.46 (1 year) to -0.36 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

OEF vs. BITI — Risk / Return Rank

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

OEF

OEF Risk / Return Rank: 57
OEF Sharpe Ratio Rank: 60
OEF Sortino Ratio Rank: 59
OEF Omega Ratio Rank: 60
OEF Calmar Ratio Rank: 49
OEF Martin Ratio Rank: 56

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.

OEF vs. BITI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 100 ETF (OEF) 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.

	OEF	BITI	Difference
Sharpe ratio: Return per unit of total volatility	1.60	1.56	+0.04
Sortino ratio: Return per unit of downside risk	2.21	2.13	+0.09
Omega ratio: Gain probability vs. loss probability	1.29	1.26	+0.04
Calmar ratio: Return relative to maximum drawdown	1.95	2.72	-0.77
Martin ratio: Return relative to average drawdown	7.59	6.78	+0.81

OEF vs. BITI - Sharpe Ratio Comparison

The current OEF Sharpe Ratio is 1.60, which is comparable to the BITI Sharpe Ratio of 1.56. The chart below compares the historical Sharpe Ratios of OEF 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

OEF vs. BITI - Drawdown Comparison

The maximum OEF drawdown since its inception was -54.11%, smaller than the maximum BITI drawdown of -92.16%. Use the drawdown chart below to compare losses from any high point for OEF and BITI.

Drawdown Indicators

	OEF	BITI	Difference
Max Drawdown Largest peak-to-trough decline	-54.11%	-92.16%	+38.05%
Max Drawdown (1Y) Largest decline over 1 year	-11.06%	-25.28%	+14.22%
Max Drawdown (3Y) Largest decline over 3 years	-19.80%	-84.63%	+64.83%
Max Drawdown (5Y) Largest decline over 5 years	-26.47%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-31.44%	—	—
Current Drawdown Current decline from peak	-2.10%	-85.94%	+83.84%
Average Drawdown Average peak-to-trough decline	-11.72%	-68.34%	+56.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.83%	10.11%	-7.28%

Volatility

OEF vs. BITI - Volatility Comparison

The current volatility for iShares S&P 100 ETF (OEF) is 4.31%, while ProShares Short Bitcoin ETF (BITI) has a volatility of 11.38%. This indicates that OEF experiences smaller price fluctuations and is considered to be less risky than BITI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OEF	BITI	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.31%	11.38%	-7.07%
Volatility (6M) Calculated over the trailing 6-month period	10.70%	34.25%	-23.55%
Volatility (1Y) Calculated over the trailing 1-year period	13.45%	44.14%	-30.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.83%	52.28%	-34.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.46%	52.28%	-33.82%

OEF vs. BITI - Expense Ratio Comparison

OEF has a 0.20% expense ratio, which is lower than BITI's 1.03% expense ratio.

Dividends

OEF vs. BITI - Dividend Comparison

OEF's dividend yield for the trailing twelve months is around 0.87%, less than BITI's 15.10% yield.

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%
OEF iShares S&P 100 ETF	0.87%	0.81%	1.03%	1.19%	1.55%	1.06%	1.43%	1.87%	2.09%	1.81%	2.07%	2.11%

Frequently Asked Questions

Can I hold both OEF and BITI in my portfolio?

OEF and BITI have a correlation of -0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OEF or BITI?

BITI has higher volatility (11.38%) compared to OEF (4.31%). In terms of maximum drawdown, OEF dropped -54.11% vs BITI's -92.16%.

Which ETF is better, OEF or BITI?

On 3-year performance, OEF leads with 22.03% vs -30.65% for BITI. On fees, OEF is cheaper at 0.20% per year. On volatility, OEF has been the lower-risk option at 4.31%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OEF or BITI?

Over the 3-year period, OEF has performed better with a 22.03% return vs -30.65%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OEF or BITI?

OEF is cheaper with a 0.20% expense ratio, compared with 1.03% for BITI.

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

BITI has the higher dividend yield at 15.10%, compared with 0.87% for OEF.

What is the main difference between OEF and BITI?

OEF is categorized as Large Cap Blend Equities, while BITI is Cryptocurrency. OEF tracks S&P 100 Index, while BITI tracks Bloomberg Bitcoin Index. They also come from different issuers: iShares and ProShares. Their fees differ too: 0.20% for OEF and 1.03% for BITI.

Which has better risk-adjusted returns?

OEF currently has the higher Sharpe Ratio (1.60 vs 1.56), 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.