IYY vs. MSTZ
IYY (iShares Dow Jones U.S. ETF) and MSTZ (T-REX 2X Inverse MSTR Daily Target ETF) are both exchange-traded funds - IYY is a Large Cap Blend Equities fund tracking the Dow Jones U.S. Index, while MSTZ is a Inverse Equities fund actively managed by REX. IYY is passively managed, while MSTZ is actively managed. Over the past year, IYY returned 20.96% vs 159.07% for MSTZ. Their -0.47 correlation means they have often moved in opposite directions in the past. IYY charges 0.20%/yr vs 1.05%/yr for MSTZ.
Performance
IYY vs. MSTZ - Performance Comparison
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Returns By Period
In the year-to-date period, IYY achieves a 10.10% return, which is significantly higher than MSTZ's -30.44% return.
IYY
- 1D
- 0.66%
- 1M
- 0.01%
- 6M
- 8.60%
- YTD
- 10.10%
- 1Y
- 20.96%
- 3Y*
- 18.93%
- 5Y*
- 11.85%
- 10Y*
- 14.60%
- ALL TIME*
- 8.28%
MSTZ
- 1D
- 8.95%
- 1M
- 7.38%
- 6M
- -24.16%
- YTD
- -30.44%
- 1Y
- 159.07%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- -86.57%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $6.16M | $5.24M | $4.18M | |
| $101.73M | $133.33M | $177.41M |
IYY vs. MSTZ - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
IYY iShares Dow Jones U.S. ETF | 10.10% | 17.08% | 5.09% |
MSTZ T-REX 2X Inverse MSTR Daily Target ETF | -30.44% | -38.95% | -94.43% |
Correlation
The correlation between IYY and MSTZ is -0.51, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | -0.51 |
Correlation (All Time) Calculated using the full available price history since Sep 18, 2024 | -0.47 |
The correlation between IYY and MSTZ has been stable across timeframes, ranging from -0.51 to -0.47 - a consistent structural relationship.
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Return for Risk
IYY vs. MSTZ — Risk / Return Rank
IYY
MSTZ
IYY vs. MSTZ - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Dow Jones U.S. ETF (IYY) and T-REX 2X Inverse MSTR Daily Target ETF (MSTZ). 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.
| IYY | MSTZ | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.08 | ||
| Sortino ratioReturn per unit of downside risk | -0.17 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.28 | -0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.12 | 2.44 | -0.32 |
| Martin ratioReturn relative to average drawdown | 9.03 | 4.53 | +4.50 |
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Drawdowns
IYY vs. MSTZ - Drawdown Comparison
The maximum IYY drawdown since its inception was -55.17%, smaller than the maximum MSTZ drawdown of -99.38%. Use the drawdown chart below to compare losses from any high point for IYY and MSTZ.
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Drawdown Indicators
| IYY | MSTZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.17% | -99.38% | +44.21% |
Max Drawdown (1Y)Largest decline over 1 year | -8.94% | -84.89% | +75.95% |
Max Drawdown (3Y)Largest decline over 3 years | -19.06% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -25.46% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -34.90% | — | — |
Current DrawdownCurrent decline from peak | -1.46% | -97.63% | +96.17% |
Average DrawdownAverage peak-to-trough decline | -10.79% | -94.63% | +83.84% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.10% | 45.62% | -43.52% |
Volatility
IYY vs. MSTZ - Volatility Comparison
The current volatility for iShares Dow Jones U.S. ETF (IYY) is 3.44%, while T-REX 2X Inverse MSTR Daily Target ETF (MSTZ) has a volatility of 37.86%. This indicates that IYY experiences smaller price fluctuations and is considered to be less risky than MSTZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IYY | MSTZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.44% | 37.86% | -34.42% |
Volatility (6M)Calculated over the trailing 6-month period | 10.20% | 134.52% | -124.32% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.99% | 150.23% | -137.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.23% | 169.87% | -152.64% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.16% | 169.87% | -151.71% |
IYY vs. MSTZ - Expense Ratio Comparison
IYY has a 0.20% expense ratio, which is lower than MSTZ's 1.05% expense ratio.
Dividends
IYY vs. MSTZ - Dividend Comparison
IYY's dividend yield for the trailing twelve months is around 0.88%, while MSTZ has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IYY iShares Dow Jones U.S. ETF | 0.88% | 0.95% | 1.05% | 1.29% | 1.48% | 1.04% | 1.31% | 1.80% | 1.97% | 1.62% | 1.81% | 1.97% |
MSTZ T-REX 2X Inverse MSTR Daily Target ETF | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
IYY and MSTZ have a correlation of -0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MSTZ has higher volatility (37.86%) compared to IYY (3.44%). In terms of maximum drawdown, IYY dropped -55.17% vs MSTZ's -99.38%.
On 1-year performance, MSTZ leads with 159.07% vs 20.96% for IYY. On fees, IYY is cheaper at 0.20% per year. On volatility, IYY has been the lower-risk option at 3.44%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, MSTZ has performed better with a 159.07% return vs 20.96%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IYY is cheaper with a 0.20% expense ratio, compared with 1.05% for MSTZ.
IYY has the higher dividend yield at 0.88%, compared with 0.00% for MSTZ.
IYY is categorized as Large Cap Blend Equities, while MSTZ is Inverse Equities. They also come from different issuers: iShares and REX. Their fees differ too: 0.20% for IYY and 1.05% for MSTZ.
IYY currently has the higher Sharpe Ratio (1.46 vs 1.38), 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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