SEIS vs. CMDT

Last updated Jun 24, 2026

SEIS (SEI Select Small Cap ETF) and CMDT (PIMCO Commodity Strategy Active Exchange-Traded Fund) are both exchange-traded funds - SEIS is a Small Cap Blend Equities fund actively managed by SEI, while CMDT is a Commodities fund tracking the Bloomberg Roll Select Commodity Total Return Index. SEIS is actively managed, while CMDT is passively managed. Over the past year, SEIS returned 31.11% vs 21.34% for CMDT. At a 0.01 correlation, their price movements are largely independent. SEIS charges 0.55%/yr vs 0.65%/yr for CMDT.

Performance

SEIS vs. CMDT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Select Small Cap ETF (SEIS) and PIMCO Commodity Strategy Active Exchange-Traded Fund (CMDT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SEIS achieves a 17.00% return, which is significantly higher than CMDT's 13.43% return.

SEIS

• 1D: -1.11%
• 1M: 3.90%
• YTD: 17.00%
• 6M: 14.13%
• 1Y: 31.11%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CMDT

• 1D: -1.14%
• 1M: -8.86%
• YTD: 13.43%
• 6M: 13.42%
• 1Y: 21.34%
• 3Y*: 12.77%
• 5Y*: —
• 10Y*: —

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

SEIS vs. CMDT - Yearly Performance Comparison

	2026 (YTD)	2025	2024
SEIS SEI Select Small Cap ETF	17.00%	9.81%	1.42%
CMDT PIMCO Commodity Strategy Active Exchange-Traded Fund	13.43%	12.78%	0.32%

Correlation

The correlation between SEIS and CMDT is -0.07, 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	-0.07
Correlation (All Time) Calculated using the full available price history since Oct 10, 2024	0.01

Return for Risk

SEIS vs. CMDT — Risk / Return Rank

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

SEIS

SEIS Risk / Return Rank: 54
SEIS Sharpe Ratio Rank: 51
SEIS Sortino Ratio Rank: 53
SEIS Omega Ratio Rank: 47
SEIS Calmar Ratio Rank: 62
SEIS Martin Ratio Rank: 58

CMDT

CMDT Risk / Return Rank: 50
CMDT Sharpe Ratio Rank: 53
CMDT Sortino Ratio Rank: 52
CMDT Omega Ratio Rank: 48
CMDT Calmar Ratio Rank: 41
CMDT Martin Ratio Rank: 58

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.

SEIS vs. CMDT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Select Small Cap ETF (SEIS) and PIMCO Commodity Strategy Active Exchange-Traded Fund (CMDT). 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.

	SEIS	CMDT	Difference
Sharpe ratio: Return per unit of total volatility	1.61	1.71	-0.10
Sortino ratio: Return per unit of downside risk	2.34	2.39	-0.05
Omega ratio: Gain probability vs. loss probability	1.28	1.29	-0.01
Calmar ratio: Return relative to maximum drawdown	2.79	1.93	+0.87
Martin ratio: Return relative to average drawdown	9.25	9.62	-0.37

SEIS vs. CMDT - Sharpe Ratio Comparison

The current SEIS Sharpe Ratio is 1.61, which is comparable to the CMDT Sharpe Ratio of 1.71. The chart below compares the historical Sharpe Ratios of SEIS and CMDT, 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

SEIS vs. CMDT - Drawdown Comparison

The maximum SEIS drawdown since its inception was -26.08%, which is greater than CMDT's maximum drawdown of -11.11%. Use the drawdown chart below to compare losses from any high point for SEIS and CMDT.

Drawdown Indicators

	SEIS	CMDT	Difference
Max Drawdown Largest peak-to-trough decline	-26.08%	-11.11%	-14.97%
Max Drawdown (1Y) Largest decline over 1 year	-11.18%	-11.11%	-0.07%
Max Drawdown (3Y) Largest decline over 3 years	—	-11.11%	—
Current Drawdown Current decline from peak	-1.11%	-11.11%	+10.00%
Average Drawdown Average peak-to-trough decline	-5.83%	-2.77%	-3.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.37%	2.25%	+1.12%

Volatility

SEIS vs. CMDT - Volatility Comparison

SEI Select Small Cap ETF (SEIS) has a higher volatility of 5.87% compared to PIMCO Commodity Strategy Active Exchange-Traded Fund (CMDT) at 3.26%. This indicates that SEIS's price experiences larger fluctuations and is considered to be riskier than CMDT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEIS	CMDT	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.87%	3.26%	+2.61%
Volatility (6M) Calculated over the trailing 6-month period	14.31%	10.60%	+3.71%
Volatility (1Y) Calculated over the trailing 1-year period	19.41%	12.65%	+6.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.12%	12.24%	+9.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.12%	12.24%	+9.88%

SEIS vs. CMDT - Expense Ratio Comparison

SEIS has a 0.55% expense ratio, which is lower than CMDT's 0.65% expense ratio.

Dividends

SEIS vs. CMDT - Dividend Comparison

SEIS's dividend yield for the trailing twelve months is around 0.36%, less than CMDT's 2.67% yield.

Position	TTM	2025	2024	2023
CMDT PIMCO Commodity Strategy Active Exchange-Traded Fund	2.67%	3.04%	8.80%	2.71%
SEIS SEI Select Small Cap ETF	0.36%	0.59%	0.23%	0.00%

Frequently Asked Questions

Can I hold both SEIS and CMDT in my portfolio?

SEIS and CMDT have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEIS or CMDT?

SEIS has higher volatility (5.87%) compared to CMDT (3.26%). In terms of maximum drawdown, SEIS dropped -26.08% vs CMDT's -11.11%.

Which ETF is better, SEIS or CMDT?

On 1-year performance, SEIS leads with 31.11% vs 21.34% for CMDT. On fees, SEIS is cheaper at 0.55% per year. On volatility, CMDT has been the lower-risk option at 3.26%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SEIS or CMDT?

Over the 1-year period, SEIS has performed better with a 31.11% return vs 21.34%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SEIS or CMDT?

SEIS is cheaper with a 0.55% expense ratio, compared with 0.65% for CMDT.

Which ETF pays a higher dividend yield, SEIS or CMDT?

CMDT has the higher dividend yield at 2.67%, compared with 0.36% for SEIS.

What is the main difference between SEIS and CMDT?

SEIS is categorized as Small Cap Blend Equities, while CMDT is Commodities. They also come from different issuers: SEI and PIMCO. Their fees differ too: 0.55% for SEIS and 0.65% for CMDT.

Which has better risk-adjusted returns?

CMDT currently has the higher Sharpe Ratio (1.71 vs 1.61), 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.