OAKBX vs. SIFAX

Last updated Jul 16, 2026

OAKBX (Oakmark Equity and Income Fund) and SIFAX (SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund) are both Diversified Portfolio funds. Over the past 10 years, OAKBX returned 9.13%/yr vs 3.38%/yr for SIFAX. At a 0.31 correlation, their price movements are largely independent. OAKBX charges 0.83%/yr vs 0.90%/yr for SIFAX.

Performance

OAKBX vs. SIFAX - Performance Comparison

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

Returns By Period

In the year-to-date period, OAKBX achieves a 2.54% return, which is significantly lower than SIFAX's 7.45% return. Over the past 10 years, OAKBX has outperformed SIFAX with an annualized return of 9.13%, while SIFAX has yielded a comparatively lower 3.38% annualized return.

OAKBX

• 1D: -0.40%
• 1M: 1.51%
• 6M: 0.78%
• YTD: 2.54%
• 1Y: 9.57%
• 3Y*: 9.49%
• 5Y*: 7.09%
• 10Y*: 9.13%

SIFAX

• 1D: 0.12%
• 1M: 0.71%
• 6M: 5.19%
• YTD: 7.45%
• 1Y: 10.94%
• 3Y*: 7.07%
• 5Y*: 5.64%
• 10Y*: 3.38%

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

OAKBX vs. SIFAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OAKBX Oakmark Equity and Income Fund	2.54%	11.05%	8.73%	17.39%	-12.94%	29.12%	8.68%	19.39%	-8.38%	14.43%
SIFAX SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund	7.45%	7.82%	4.08%	-1.74%	8.48%	10.83%	-1.59%	5.68%	-3.64%	-1.96%

Correlation

The correlation between OAKBX and SIFAX is -0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.01
Correlation (3Y) Calculated over the trailing 3-year period	0.09
Correlation (5Y) Calculated over the trailing 5-year period	0.20
Correlation (10Y) Calculated over the trailing 10-year period	0.28
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013	0.31

The correlation between OAKBX and SIFAX shifts across timeframes, from -0.01 (1 year) to 0.31 (all time), reflecting how their relationship changes across market environments.

Return for Risk

OAKBX vs. SIFAX — Risk / Return Rank

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

OAKBX

OAKBX Risk / Return Rank: 21
OAKBX Sharpe Ratio Rank: 21
OAKBX Sortino Ratio Rank: 22
OAKBX Omega Ratio Rank: 20
OAKBX Calmar Ratio Rank: 21
OAKBX Martin Ratio Rank: 22

SIFAX

SIFAX Risk / Return Rank: 67
SIFAX Sharpe Ratio Rank: 74
SIFAX Sortino Ratio Rank: 75
SIFAX Omega Ratio Rank: 70
SIFAX Calmar Ratio Rank: 63
SIFAX Martin Ratio Rank: 53

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.

OAKBX vs. SIFAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Oakmark Equity and Income Fund (OAKBX) and SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund (SIFAX). 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.

	OAKBX	SIFAX	Difference
Sharpe ratio: Return per unit of total volatility	0.95	1.90	-0.95
Sortino ratio: Return per unit of downside risk	1.44	2.76	-1.33
Omega ratio: Gain probability vs. loss probability	1.17	1.34	-0.17
Calmar ratio: Return relative to maximum drawdown	1.21	2.40	-1.19
Martin ratio: Return relative to average drawdown	3.91	8.36	-4.45

OAKBX vs. SIFAX - Sharpe Ratio Comparison

The current OAKBX Sharpe Ratio is 0.95, which is lower than the SIFAX Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of OAKBX and SIFAX, 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

OAKBX vs. SIFAX - Drawdown Comparison

The maximum OAKBX drawdown since its inception was -31.31%, which is greater than SIFAX's maximum drawdown of -23.62%. Use the drawdown chart below to compare losses from any high point for OAKBX and SIFAX.

Drawdown Indicators

	OAKBX	SIFAX	Difference
Max Drawdown Largest peak-to-trough decline	-31.31%	-23.62%	-7.69%
Max Drawdown (1Y) Largest decline over 1 year	-6.90%	-4.47%	-2.43%
Max Drawdown (3Y) Largest decline over 3 years	-10.91%	-4.47%	-6.44%
Max Drawdown (5Y) Largest decline over 5 years	-20.41%	-8.32%	-12.09%
Max Drawdown (10Y) Largest decline over 10 years	-30.19%	-13.64%	-16.55%
Current Drawdown Current decline from peak	-0.53%	-2.41%	+1.88%
Average Drawdown Average peak-to-trough decline	-3.76%	-8.51%	+4.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.14%	1.28%	+0.86%

Volatility

OAKBX vs. SIFAX - Volatility Comparison

Oakmark Equity and Income Fund (OAKBX) has a higher volatility of 2.73% compared to SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund (SIFAX) at 1.92%. This indicates that OAKBX's price experiences larger fluctuations and is considered to be riskier than SIFAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OAKBX	SIFAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.73%	1.92%	+0.81%
Volatility (6M) Calculated over the trailing 6-month period	6.50%	4.91%	+1.59%
Volatility (1Y) Calculated over the trailing 1-year period	8.82%	5.67%	+3.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.13%	5.64%	+6.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.97%	5.23%	+7.74%

OAKBX vs. SIFAX - Expense Ratio Comparison

OAKBX has a 0.83% expense ratio, which is lower than SIFAX's 0.90% expense ratio.

Dividends

OAKBX vs. SIFAX - Dividend Comparison

OAKBX's dividend yield for the trailing twelve months is around 2.17%, less than SIFAX's 4.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OAKBX Oakmark Equity and Income Fund	2.17%	2.16%	2.05%	2.28%	1.44%	14.26%	4.17%	9.07%	10.05%	8.09%	4.13%	6.53%
SIFAX SEI Institutional Managed Trust Multi-Asset Inflation Managed Fund	4.24%	4.55%	3.25%	3.82%	11.90%	7.89%	1.45%	1.49%	1.90%	1.39%	1.15%	0.48%

Frequently Asked Questions

Can I hold both OAKBX and SIFAX in my portfolio?

OAKBX and SIFAX have a correlation of -0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OAKBX or SIFAX?

OAKBX has higher volatility (2.73%) compared to SIFAX (1.92%). In terms of maximum drawdown, OAKBX dropped -31.31% vs SIFAX's -23.62%.

Which has better risk-adjusted returns?

SIFAX currently has the higher Sharpe Ratio (1.90 vs 0.95), 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.