AOK vs. MSTZ

Last updated Jul 12, 2026

AOK (iShares Core 30/70 Conservative Allocation ETF) and MSTZ (T-REX 2X Inverse MSTR Daily Target ETF) are both exchange-traded funds - AOK is a Diversified Portfolio fund tracking the S&P Target Risk Conservative Index, while MSTZ is a Inverse Equities fund actively managed by REX. AOK is passively managed, while MSTZ is actively managed. Over the past year, AOK returned 9.94% vs 264.10% for MSTZ. At a correlation of -0.38, they often move in opposite directions. AOK charges 0.15%/yr vs 1.05%/yr for MSTZ.

Performance

AOK vs. MSTZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core 30/70 Conservative Allocation ETF (AOK) and T-REX 2X Inverse MSTR Daily Target ETF (MSTZ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AOK achieves a 4.29% return, which is significantly higher than MSTZ's -26.97% return.

AOK

• 1D: 0.00%
• 1M: 0.17%
• 6M: 3.03%
• YTD: 4.29%
• 1Y: 9.94%
• 3Y*: 9.23%
• 5Y*: 3.53%
• 10Y*: 4.96%

MSTZ

• 1D: -1.53%
• 1M: 39.32%
• 6M: -19.19%
• YTD: -26.97%
• 1Y: 264.10%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AOK vs. MSTZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024
AOK iShares Core 30/70 Conservative Allocation ETF	4.29%	11.26%	-1.50%
MSTZ T-REX 2X Inverse MSTR Daily Target ETF	-26.97%	-38.95%	-94.43%

Correlation

The correlation between AOK and MSTZ is -0.38, 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	-0.38
Correlation (All Time) Calculated using the full available price history since Sep 18, 2024	-0.38

Return for Risk

AOK vs. MSTZ — Risk / Return Rank

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

AOK

AOK Risk / Return Rank: 60
AOK Sharpe Ratio Rank: 60
AOK Sortino Ratio Rank: 61
AOK Omega Ratio Rank: 63
AOK Calmar Ratio Rank: 53
AOK Martin Ratio Rank: 64

MSTZ

MSTZ Risk / Return Rank: 60
MSTZ Sharpe Ratio Rank: 61
MSTZ Sortino Ratio Rank: 62
MSTZ Omega Ratio Rank: 63
MSTZ Calmar Ratio Rank: 71
MSTZ Martin Ratio Rank: 43

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.

AOK vs. MSTZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core 30/70 Conservative Allocation ETF (AOK) 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.

	AOK	MSTZ	Difference
Sharpe ratio: Return per unit of total volatility	1.62	1.64	-0.02
Sortino ratio: Return per unit of downside risk	2.30	2.34	-0.04
Omega ratio: Gain probability vs. loss probability	1.30	1.30	0.00
Calmar ratio: Return relative to maximum drawdown	2.14	2.86	-0.72
Martin ratio: Return relative to average drawdown	9.00	5.59	+3.41

AOK vs. MSTZ - Sharpe Ratio Comparison

The current AOK Sharpe Ratio is 1.62, which is comparable to the MSTZ Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of AOK and MSTZ, 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

AOK vs. MSTZ - Drawdown Comparison

The maximum AOK drawdown since its inception was -18.94%, smaller than the maximum MSTZ drawdown of -99.38%. Use the drawdown chart below to compare losses from any high point for AOK and MSTZ.

Drawdown Indicators

	AOK	MSTZ	Difference
Max Drawdown Largest peak-to-trough decline	-18.94%	-99.38%	+80.44%
Max Drawdown (1Y) Largest decline over 1 year	-4.50%	-84.89%	+80.39%
Max Drawdown (3Y) Largest decline over 3 years	-6.37%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-18.94%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-18.94%	—	—
Current Drawdown Current decline from peak	-0.44%	-97.51%	+97.07%
Average Drawdown Average peak-to-trough decline	-2.36%	-94.53%	+92.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.07%	43.41%	-42.34%

Volatility

AOK vs. MSTZ - Volatility Comparison

The current volatility for iShares Core 30/70 Conservative Allocation ETF (AOK) is 2.01%, while T-REX 2X Inverse MSTR Daily Target ETF (MSTZ) has a volatility of 56.46%. This indicates that AOK 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.

Volatility by Period

	AOK	MSTZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.01%	56.46%	-54.45%
Volatility (6M) Calculated over the trailing 6-month period	4.85%	135.20%	-130.35%
Volatility (1Y) Calculated over the trailing 1-year period	5.95%	148.41%	-142.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.15%	171.17%	-164.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.72%	171.17%	-164.45%

AOK vs. MSTZ - Expense Ratio Comparison

AOK has a 0.15% expense ratio, which is lower than MSTZ's 1.05% expense ratio.

Dividends

AOK vs. MSTZ - Dividend Comparison

AOK's dividend yield for the trailing twelve months is around 3.36%, while MSTZ has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AOK iShares Core 30/70 Conservative Allocation ETF	3.36%	3.28%	3.23%	2.93%	2.25%	1.55%	2.10%	2.71%	2.68%	2.91%	2.14%	2.02%
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

Can I hold both AOK and MSTZ in my portfolio?

AOK and MSTZ have a correlation of -0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AOK or MSTZ?

MSTZ has higher volatility (56.46%) compared to AOK (2.01%). In terms of maximum drawdown, AOK dropped -18.94% vs MSTZ's -99.38%.

Which ETF is better, AOK or MSTZ?

On 1-year performance, MSTZ leads with 264.10% vs 9.94% for AOK. On fees, AOK is cheaper at 0.15% per year. On volatility, AOK has been the lower-risk option at 2.01%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, AOK or MSTZ?

Over the 1-year period, MSTZ has performed better with a 264.10% return vs 9.94%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, AOK or MSTZ?

AOK is cheaper with a 0.15% expense ratio, compared with 1.05% for MSTZ.

Which ETF pays a higher dividend yield, AOK or MSTZ?

AOK has the higher dividend yield at 3.36%, compared with 0.00% for MSTZ.

What is the main difference between AOK and MSTZ?

AOK is categorized as Diversified Portfolio, while MSTZ is Inverse Equities. They also come from different issuers: iShares and REX. Their fees differ too: 0.15% for AOK and 1.05% for MSTZ.

Which has better risk-adjusted returns?

MSTZ currently has the higher Sharpe Ratio (1.64 vs 1.62), 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.