ATACX vs. SIOAX

Last updated Jun 5, 2026

ATACX (ATAC Rotation Fund) and SIOAX (SEI Institutional Managed Trust Multi-Asset Income Fund) are both Tactical Allocation funds. Over the past 10 years, ATACX returned 8.34%/yr vs 5.01%/yr for SIOAX. At a 0.34 correlation, their price movements are largely independent. ATACX charges 1.74%/yr vs 0.80%/yr for SIOAX.

Performance

ATACX vs. SIOAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ATAC Rotation Fund (ATACX) and SEI Institutional Managed Trust Multi-Asset Income Fund (SIOAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ATACX achieves a 18.32% return, which is significantly higher than SIOAX's 2.39% return. Over the past 10 years, ATACX has outperformed SIOAX with an annualized return of 8.34%, while SIOAX has yielded a comparatively lower 5.01% annualized return.

ATACX

• 1D: -1.78%
• 1M: 5.90%
• YTD: 18.32%
• 6M: 15.84%
• 1Y: 28.25%
• 3Y*: 16.15%
• 5Y*: -0.38%
• 10Y*: 8.34%

SIOAX

• 1D: -0.29%
• 1M: 0.07%
• YTD: 2.39%
• 6M: 2.97%
• 1Y: 7.89%
• 3Y*: 9.11%
• 5Y*: 3.67%
• 10Y*: 5.01%

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

ATACX vs. SIOAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ATACX ATAC Rotation Fund	18.32%	18.74%	5.05%	2.10%	-25.80%	-10.55%	72.81%	7.72%	-11.44%	27.03%
SIOAX SEI Institutional Managed Trust Multi-Asset Income Fund	2.39%	10.08%	7.25%	11.09%	-13.13%	4.50%	5.33%	14.33%	-2.11%	6.77%

Correlation

The correlation between ATACX and SIOAX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.49
Correlation (5Y) Calculated over the trailing 5-year period	0.48
Correlation (10Y) Calculated over the trailing 10-year period	0.39
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.34

The correlation between ATACX and SIOAX shifts across timeframes, from 0.34 (all time) to 0.49 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

ATACX vs. SIOAX — Risk / Return Rank

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

ATACX

ATACX Risk / Return Rank: 45
ATACX Sharpe Ratio Rank: 31
ATACX Sortino Ratio Rank: 32
ATACX Omega Ratio Rank: 32
ATACX Calmar Ratio Rank: 83
ATACX Martin Ratio Rank: 48

SIOAX

SIOAX Risk / Return Rank: 86
SIOAX Sharpe Ratio Rank: 92
SIOAX Sortino Ratio Rank: 93
SIOAX Omega Ratio Rank: 90
SIOAX Calmar Ratio Rank: 78
SIOAX Martin Ratio Rank: 79

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.

ATACX vs. SIOAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ATAC Rotation Fund (ATACX) and SEI Institutional Managed Trust Multi-Asset Income Fund (SIOAX). 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.

	ATACX	SIOAX	Difference
Sharpe ratio: Return per unit of total volatility	1.56	3.09	-1.52
Sortino ratio: Return per unit of downside risk	2.29	4.80	-2.50
Omega ratio: Gain probability vs. loss probability	1.29	1.66	-0.37
Calmar ratio: Return relative to maximum drawdown	3.80	3.43	+0.37
Martin ratio: Return relative to average drawdown	9.78	14.43	-4.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ATACX vs. SIOAX - Sharpe Ratio Comparison

The current ATACX Sharpe Ratio is 1.56, which is lower than the SIOAX Sharpe Ratio of 3.09. The chart below compares the historical Sharpe Ratios of ATACX and SIOAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ATACX	SIOAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.56	3.09	-1.52
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.02	0.81	-0.82
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.41	0.99	-0.58
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	1.08	-0.75

Drawdowns

ATACX vs. SIOAX - Drawdown Comparison

The maximum ATACX drawdown since its inception was -51.26%, which is greater than SIOAX's maximum drawdown of -22.10%. Use the drawdown chart below to compare losses from any high point for ATACX and SIOAX.

Drawdown Indicators

	ATACX	SIOAX	Difference
Max Drawdown Largest peak-to-trough decline	-51.26%	-22.10%	-29.16%
Max Drawdown (1Y) Largest decline over 1 year	-7.34%	-2.34%	-5.00%
Max Drawdown (3Y) Largest decline over 3 years	-18.94%	-4.24%	-14.70%
Max Drawdown (5Y) Largest decline over 5 years	-46.75%	-17.57%	-29.18%
Max Drawdown (10Y) Largest decline over 10 years	-51.26%	-22.10%	-29.16%
Current Drawdown Current decline from peak	-10.19%	-0.32%	-9.87%
Average Drawdown Average peak-to-trough decline	-16.78%	-2.33%	-14.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.85%	0.56%	+2.29%

Volatility

ATACX vs. SIOAX - Volatility Comparison

ATAC Rotation Fund (ATACX) has a higher volatility of 9.73% compared to SEI Institutional Managed Trust Multi-Asset Income Fund (SIOAX) at 0.71%. This indicates that ATACX's price experiences larger fluctuations and is considered to be riskier than SIOAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATACX	SIOAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.73%	0.71%	+9.02%
Volatility (6M) Calculated over the trailing 6-month period	13.90%	2.06%	+11.84%
Volatility (1Y) Calculated over the trailing 1-year period	17.95%	2.60%	+15.35%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.32%	4.58%	+15.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.49%	5.08%	+15.41%

ATACX vs. SIOAX - Expense Ratio Comparison

ATACX has a 1.74% expense ratio, which is higher than SIOAX's 0.80% expense ratio.

Dividends

ATACX vs. SIOAX - Dividend Comparison

ATACX's dividend yield for the trailing twelve months is around 1.56%, less than SIOAX's 5.53% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATACX ATAC Rotation Fund	1.56%	1.85%	0.92%	0.00%	0.00%	0.00%	13.13%	0.90%	1.10%	8.15%	0.00%	0.00%
SIOAX SEI Institutional Managed Trust Multi-Asset Income Fund	5.53%	5.37%	6.08%	6.49%	6.11%	3.87%	3.05%	4.43%	3.29%	4.31%	4.27%	6.30%

Frequently Asked Questions

Can I hold both ATACX and SIOAX in my portfolio?

ATACX and SIOAX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATACX or SIOAX?

ATACX has higher volatility (9.73%) compared to SIOAX (0.71%). In terms of maximum drawdown, ATACX dropped -51.26% vs SIOAX's -22.10%.

Which has better risk-adjusted returns?

SIOAX currently has the higher Sharpe Ratio (3.09 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.