IWM vs. BITI
IWM (iShares Russell 2000 ETF) and BITI (ProShares Short Bitcoin ETF) are both exchange-traded funds - IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index, while BITI is a Cryptocurrency fund tracking the Bloomberg Bitcoin Index. Both are passively managed. Over the past 3 years, IWM returned 16.79%/yr vs -31.54%/yr for BITI. At a correlation of -0.42, they often move in opposite directions. IWM charges 0.19%/yr vs 1.03%/yr for BITI.
Performance
IWM vs. BITI - Performance Comparison
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Returns By Period
In the year-to-date period, IWM achieves a 20.14% return, which is significantly lower than BITI's 23.84% return.
IWM
- 1D
- 0.35%
- 1M
- 0.77%
- 6M
- 13.16%
- YTD
- 20.14%
- 1Y
- 33.33%
- 3Y*
- 16.79%
- 5Y*
- 7.57%
- 10Y*
- 10.80%
BITI
- 1D
- -3.81%
- 1M
- -2.41%
- 6M
- 34.02%
- YTD
- 23.84%
- 1Y
- 64.31%
- 3Y*
- -31.54%
- 5Y*
- —
- 10Y*
- —
IWM vs. BITI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
IWM iShares Russell 2000 ETF | 20.14% | 12.66% | 11.38% | 16.83% | 6.59% |
BITI ProShares Short Bitcoin ETF | 23.84% | -1.76% | -62.60% | -66.17% | 3.39% |
Correlation
The correlation between IWM and BITI is -0.49, 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 | -0.49 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.41 |
Correlation (All Time) Calculated using the full available price history since Jun 21, 2022 | -0.42 |
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Return for Risk
IWM vs. BITI — Risk / Return Rank
IWM
BITI
IWM vs. BITI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2000 ETF (IWM) 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.
| IWM | BITI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.26 | ||
| Sortino ratioReturn per unit of downside risk | +0.41 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.24 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 3.04 | 2.56 | +0.48 |
| Martin ratioReturn relative to average drawdown | 10.73 | 6.37 | +4.36 |
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Drawdowns
IWM vs. BITI - Drawdown Comparison
The maximum IWM drawdown since its inception was -59.05%, smaller than the maximum BITI drawdown of -92.16%. Use the drawdown chart below to compare losses from any high point for IWM and BITI.
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Drawdown Indicators
| IWM | BITI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.05% | -92.16% | +33.11% |
Max Drawdown (1Y)Largest decline over 1 year | -11.03% | -25.28% | +14.25% |
Max Drawdown (3Y)Largest decline over 3 years | -27.50% | -84.63% | +57.13% |
Max Drawdown (5Y)Largest decline over 5 years | -31.91% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -41.13% | — | — |
Current DrawdownCurrent decline from peak | -1.98% | -86.48% | +84.50% |
Average DrawdownAverage peak-to-trough decline | -10.73% | -68.36% | +57.63% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.12% | 10.13% | -7.01% |
Volatility
IWM vs. BITI - Volatility Comparison
The current volatility for iShares Russell 2000 ETF (IWM) is 3.88%, while ProShares Short Bitcoin ETF (BITI) has a volatility of 11.73%. This indicates that IWM 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.
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Volatility by Period
| IWM | BITI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.88% | 11.73% | -7.85% |
Volatility (6M)Calculated over the trailing 6-month period | 14.18% | 34.49% | -20.31% |
Volatility (1Y)Calculated over the trailing 1-year period | 19.50% | 44.24% | -24.74% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.55% | 52.29% | -29.74% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.00% | 52.29% | -29.29% |
IWM vs. BITI - Expense Ratio Comparison
IWM has a 0.19% expense ratio, which is lower than BITI's 1.03% expense ratio.
Dividends
IWM vs. BITI - Dividend Comparison
IWM's dividend yield for the trailing twelve months is around 0.90%, less than BITI's 15.70% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BITI ProShares Short Bitcoin ETF | 15.70% | 1.60% | 3.91% | 3.33% | 0.06% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
IWM iShares Russell 2000 ETF | 0.90% | 1.04% | 1.15% | 1.35% | 1.48% | 0.94% | 1.04% | 1.26% | 1.40% | 1.26% | 1.38% | 1.54% |
Frequently Asked Questions
IWM and BITI have a correlation of -0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BITI has higher volatility (11.73%) compared to IWM (3.88%). In terms of maximum drawdown, IWM dropped -59.05% vs BITI's -92.16%.
On 3-year performance, IWM leads with 16.79% vs -31.54% for BITI. On fees, IWM is cheaper at 0.19% per year. On volatility, IWM has been the lower-risk option at 3.88%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, IWM has performed better with a 16.79% return vs -31.54%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IWM is cheaper with a 0.19% expense ratio, compared with 1.03% for BITI.
BITI has the higher dividend yield at 15.70%, compared with 0.90% for IWM.
IWM is categorized as Small Cap Blend Equities, while BITI is Cryptocurrency. IWM tracks Russell 2000 Index, while BITI tracks Bloomberg Bitcoin Index. They also come from different issuers: iShares and ProShares. Their fees differ too: 0.19% for IWM and 1.03% for BITI.
IWM currently has the higher Sharpe Ratio (1.72 vs 1.46), 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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