OAKM vs. CSTK

Last updated Jun 4, 2026

OAKM (Oakmark U.S. Large Cap ETF) and CSTK (Invesco Comstock Contrarian Equity ETF) are both Large Cap Value Equities funds. Both are actively managed. Over the past year, OAKM returned 13.56% vs 26.71% for CSTK. A 0.79 correlation means they provide meaningful diversification when combined. OAKM charges 0.59%/yr vs 0.35%/yr for CSTK.

Performance

OAKM vs. CSTK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Oakmark U.S. Large Cap ETF (OAKM) and Invesco Comstock Contrarian Equity ETF (CSTK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OAKM achieves a -2.01% return, which is significantly lower than CSTK's 11.29% return.

OAKM

• 1D: -1.38%
• 1M: -1.24%
• YTD: -2.01%
• 6M: 1.19%
• 1Y: 13.56%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CSTK

• 1D: 0.07%
• 1M: 3.59%
• YTD: 11.29%
• 6M: 13.04%
• 1Y: 26.71%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

OAKM vs. CSTK - Yearly Performance Comparison

	2026 (YTD)	2025
OAKM Oakmark U.S. Large Cap ETF	-2.01%	19.87%
CSTK Invesco Comstock Contrarian Equity ETF	11.29%	18.33%

Correlation

The correlation between OAKM and CSTK is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.78
Correlation (All Time) Calculated using the full available price history since May 8, 2025	0.79

The correlation between OAKM and CSTK has been stable across timeframes, ranging from 0.78 to 0.79 - a consistent structural relationship.

Return for Risk

OAKM vs. CSTK — Risk / Return Rank

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

OAKM

OAKM Risk / Return Rank: 32
OAKM Sharpe Ratio Rank: 29
OAKM Sortino Ratio Rank: 29
OAKM Omega Ratio Rank: 28
OAKM Calmar Ratio Rank: 38
OAKM Martin Ratio Rank: 33

CSTK

CSTK Risk / Return Rank: 70
CSTK Sharpe Ratio Rank: 74
CSTK Sortino Ratio Rank: 77
CSTK Omega Ratio Rank: 71
CSTK Calmar Ratio Rank: 62
CSTK Martin Ratio Rank: 66

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.

OAKM vs. CSTK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Oakmark U.S. Large Cap ETF (OAKM) and Invesco Comstock Contrarian Equity ETF (CSTK). 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.

	OAKM	CSTK	Difference
Sharpe ratio: Return per unit of total volatility	1.05	2.38	-1.33
Sortino ratio: Return per unit of downside risk	1.57	3.42	-1.85
Omega ratio: Gain probability vs. loss probability	1.19	1.42	-0.23
Calmar ratio: Return relative to maximum drawdown	1.89	3.02	-1.13
Martin ratio: Return relative to average drawdown	4.92	11.85	-6.94
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OAKM vs. CSTK - Sharpe Ratio Comparison

The current OAKM Sharpe Ratio is 1.05, which is lower than the CSTK Sharpe Ratio of 2.38. The chart below compares the historical Sharpe Ratios of OAKM and CSTK, 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

	OAKM	CSTK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.05	2.38	-1.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	2.54	-2.01

Drawdowns

OAKM vs. CSTK - Drawdown Comparison

The maximum OAKM drawdown since its inception was -15.24%, which is greater than CSTK's maximum drawdown of -8.87%. Use the drawdown chart below to compare losses from any high point for OAKM and CSTK.

Drawdown Indicators

	OAKM	CSTK	Difference
Max Drawdown Largest peak-to-trough decline	-15.24%	-8.87%	-6.37%
Max Drawdown (1Y) Largest decline over 1 year	-7.19%	-8.87%	+1.68%
Current Drawdown Current decline from peak	-4.44%	-0.60%	-3.84%
Average Drawdown Average peak-to-trough decline	-2.77%	-1.28%	-1.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	2.26%	+0.50%

Volatility

OAKM vs. CSTK - Volatility Comparison

Oakmark U.S. Large Cap ETF (OAKM) has a higher volatility of 3.09% compared to Invesco Comstock Contrarian Equity ETF (CSTK) at 2.68%. This indicates that OAKM's price experiences larger fluctuations and is considered to be riskier than CSTK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OAKM	CSTK	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.09%	2.68%	+0.41%
Volatility (6M) Calculated over the trailing 6-month period	9.37%	8.45%	+0.92%
Volatility (1Y) Calculated over the trailing 1-year period	12.98%	11.28%	+1.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.51%	11.60%	+4.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.51%	11.60%	+4.91%

OAKM vs. CSTK - Expense Ratio Comparison

OAKM has a 0.59% expense ratio, which is higher than CSTK's 0.35% expense ratio.

Dividends

OAKM vs. CSTK - Dividend Comparison

OAKM's dividend yield for the trailing twelve months is around 0.68%, less than CSTK's 1.77% yield.

Position	TTM	2025	2024
CSTK Invesco Comstock Contrarian Equity ETF	1.77%	1.44%	0.00%
OAKM Oakmark U.S. Large Cap ETF	0.68%	0.67%	0.04%

Frequently Asked Questions

Can I hold both OAKM and CSTK in my portfolio?

OAKM and CSTK have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OAKM or CSTK?

OAKM has higher volatility (3.09%) compared to CSTK (2.68%). In terms of maximum drawdown, OAKM dropped -15.24% vs CSTK's -8.87%.

Which ETF is better, OAKM or CSTK?

On 1-year performance, CSTK leads with 26.71% vs 13.56% for OAKM. On fees, CSTK is cheaper at 0.35% per year. On volatility, CSTK has been the lower-risk option at 2.68%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OAKM or CSTK?

Over the 1-year period, CSTK has performed better with a 26.71% return vs 13.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OAKM or CSTK?

CSTK is cheaper with a 0.35% expense ratio, compared with 0.59% for OAKM.

Which ETF pays a higher dividend yield, OAKM or CSTK?

CSTK has the higher dividend yield at 1.77%, compared with 0.68% for OAKM.

What is the main difference between OAKM and CSTK?

They also come from different issuers: Oakmark and Invesco. Their fees differ too: 0.59% for OAKM and 0.35% for CSTK.

Which has better risk-adjusted returns?

CSTK currently has the higher Sharpe Ratio (2.38 vs 1.05), 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.