IEMG vs. MSTZ
IEMG (iShares Core MSCI Emerging Markets ETF) and MSTZ (T-REX 2X Inverse MSTR Daily Target ETF) are both exchange-traded funds - IEMG is a Emerging Markets Diversified fund tracking the MSCI Emerging Markets Investable Market Index (USD) (Net), while MSTZ is a Inverse Equities fund actively managed by REX. IEMG is passively managed, while MSTZ is actively managed. Over the past year, IEMG returned 41.51% vs 279.21% for MSTZ. At a correlation of -0.39, they often move in opposite directions. IEMG charges 0.09%/yr vs 1.05%/yr for MSTZ.
Performance
IEMG vs. MSTZ - Performance Comparison
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Returns By Period
In the year-to-date period, IEMG achieves a 23.22% return, which is significantly higher than MSTZ's 1.05% return.
IEMG
- 1D
- 0.88%
- 1M
- -0.88%
- YTD
- 23.22%
- 6M
- 23.74%
- 1Y
- 41.51%
- 3Y*
- 22.40%
- 5Y*
- 7.12%
- 10Y*
- 10.62%
MSTZ
- 1D
- 19.27%
- 1M
- 186.45%
- YTD
- 1.05%
- 6M
- 9.89%
- 1Y
- 279.21%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IEMG vs. MSTZ - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
IEMG iShares Core MSCI Emerging Markets ETF | 23.22% | 32.56% | -1.44% |
MSTZ T-REX 2X Inverse MSTR Daily Target ETF | 1.05% | -38.95% | -94.43% |
Correlation
The correlation between IEMG and MSTZ is -0.42, 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 | -0.42 |
Correlation (All Time) Calculated using the full available price history since Sep 18, 2024 | -0.39 |
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Return for Risk
IEMG vs. MSTZ — Risk / Return Rank
IEMG
MSTZ
IEMG vs. MSTZ - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core MSCI Emerging Markets ETF (IEMG) 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.
| IEMG | MSTZ | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.03 | ||
| Sortino ratioReturn per unit of downside risk | -0.02 | ||
| Omega ratioGain probability vs. loss probability | 1.37 | 1.32 | +0.05 |
| Calmar ratioReturn relative to maximum drawdown | 3.16 | 3.31 | -0.16 |
| Martin ratioReturn relative to average drawdown | 11.46 | 6.57 | +4.89 |
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Drawdowns
IEMG vs. MSTZ - Drawdown Comparison
The maximum IEMG drawdown since its inception was -38.71%, smaller than the maximum MSTZ drawdown of -99.38%. Use the drawdown chart below to compare losses from any high point for IEMG and MSTZ.
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Drawdown Indicators
| IEMG | MSTZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.71% | -99.38% | +60.67% |
Max Drawdown (1Y)Largest decline over 1 year | -13.21% | -84.89% | +71.68% |
Max Drawdown (3Y)Largest decline over 3 years | -17.21% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -35.75% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -38.71% | — | — |
Current DrawdownCurrent decline from peak | -4.45% | -96.56% | +92.11% |
Average DrawdownAverage peak-to-trough decline | -12.93% | -94.46% | +81.53% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.63% | 42.70% | -39.07% |
Volatility
IEMG vs. MSTZ - Volatility Comparison
The current volatility for iShares Core MSCI Emerging Markets ETF (IEMG) is 11.67%, while T-REX 2X Inverse MSTR Daily Target ETF (MSTZ) has a volatility of 46.08%. This indicates that IEMG 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
| IEMG | MSTZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.67% | 46.08% | -34.41% |
Volatility (6M)Calculated over the trailing 6-month period | 20.13% | 129.73% | -109.60% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.00% | 145.84% | -123.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.99% | 170.65% | -151.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.19% | 170.65% | -150.46% |
IEMG vs. MSTZ - Expense Ratio Comparison
IEMG has a 0.09% expense ratio, which is lower than MSTZ's 1.05% expense ratio.
Dividends
IEMG vs. MSTZ - Dividend Comparison
IEMG's dividend yield for the trailing twelve months is around 2.19%, while MSTZ has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IEMG iShares Core MSCI Emerging Markets ETF | 2.19% | 2.75% | 3.20% | 2.89% | 2.71% | 3.06% | 1.87% | 3.15% | 2.76% | 2.35% | 2.28% | 2.53% |
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
IEMG and MSTZ have a correlation of -0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MSTZ has higher volatility (46.08%) compared to IEMG (11.67%). In terms of maximum drawdown, IEMG dropped -38.71% vs MSTZ's -99.38%.
On 1-year performance, MSTZ leads with 279.21% vs 41.51% for IEMG. On fees, IEMG is cheaper at 0.09% per year. On volatility, IEMG has been the lower-risk option at 11.67%. 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 279.21% return vs 41.51%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IEMG is cheaper with a 0.09% expense ratio, compared with 1.05% for MSTZ.
IEMG has the higher dividend yield at 2.19%, compared with 0.00% for MSTZ.
IEMG is categorized as Emerging Markets Diversified, while MSTZ is Inverse Equities. They also come from different issuers: iShares and REX. Their fees differ too: 0.09% for IEMG and 1.05% for MSTZ.
MSTZ currently has the higher Sharpe Ratio (1.93 vs 1.90), 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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