ROMO vs. SEIM

Last updated Jun 4, 2026

ROMO (Strategy Shares Newfound/ReSolve Robust Momentum ETF) and SEIM (SEI Enhanced US Large Cap Momentum Factor ETF) are both Momentum funds. ROMO is passively managed, while SEIM is actively managed. Over the past 3 years, ROMO returned 14.45%/yr vs 29.67%/yr for SEIM. A 0.74 correlation means they provide meaningful diversification when combined. ROMO charges 0.82%/yr vs 0.15%/yr for SEIM.

Performance

ROMO vs. SEIM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Strategy Shares Newfound/ReSolve Robust Momentum ETF (ROMO) and SEI Enhanced US Large Cap Momentum Factor ETF (SEIM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ROMO achieves a 6.33% return, which is significantly lower than SEIM's 18.91% return.

ROMO

• 1D: -0.69%
• 1M: 3.99%
• YTD: 6.33%
• 6M: 7.08%
• 1Y: 17.53%
• 3Y*: 14.45%
• 5Y*: 6.78%
• 10Y*: —

SEIM

• 1D: -0.33%
• 1M: 7.63%
• YTD: 18.91%
• 6M: 20.91%
• 1Y: 36.91%
• 3Y*: 29.67%
• 5Y*: —
• 10Y*: —

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

ROMO vs. SEIM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
ROMO Strategy Shares Newfound/ReSolve Robust Momentum ETF	6.33%	9.29%	20.68%	11.05%	-5.02%
SEIM SEI Enhanced US Large Cap Momentum Factor ETF	18.91%	20.20%	39.12%	16.25%	-2.39%

Correlation

The correlation between ROMO and SEIM is 0.76, 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	0.76
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (All Time) Calculated using the full available price history since May 19, 2022	0.74

The correlation between ROMO and SEIM has been stable across timeframes, ranging from 0.74 to 0.82 - a consistent structural relationship.

ROMO vs. SEIM - Sectors Allocation Comparison

Sectors	ROMO	SEIM
Financial Services	22.0%	8.1%
Industrials	19.4%	6.8%
Technology	12.5%	29.5%
Healthcare	9.6%	9.5%
Consumer Cyclical	8.4%	7.2%
Consumer Defensive	6.3%	7.9%
Basic Materials	6.2%	4.7%
Communication Services	5.0%	4.4%
Energy	3.9%	11.8%
Utilities	3.6%	2.4%
Real Estate	3.0%	7.2%

Return for Risk

ROMO vs. SEIM — Risk / Return Rank

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

ROMO

ROMO Risk / Return Rank: 35
ROMO Sharpe Ratio Rank: 36
ROMO Sortino Ratio Rank: 36
ROMO Omega Ratio Rank: 36
ROMO Calmar Ratio Rank: 32
ROMO Martin Ratio Rank: 37

SEIM

SEIM Risk / Return Rank: 70
SEIM Sharpe Ratio Rank: 68
SEIM Sortino Ratio Rank: 66
SEIM Omega Ratio Rank: 65
SEIM Calmar Ratio Rank: 73
SEIM Martin Ratio Rank: 81

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.

ROMO vs. SEIM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Strategy Shares Newfound/ReSolve Robust Momentum ETF (ROMO) and SEI Enhanced US Large Cap Momentum Factor ETF (SEIM). 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.

	ROMO	SEIM	Difference
Sharpe ratio Return per unit of total volatility	1.30	2.28	-0.98
Sortino ratio Return per unit of downside risk	1.86	3.08	-1.23
Omega ratio Gain probability vs. loss probability	1.24	1.40	-0.16
Calmar ratio Return relative to maximum drawdown	1.58	3.68	-2.11
Martin ratio Return relative to average drawdown	5.70	16.18	-10.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ROMO vs. SEIM - Sharpe Ratio Comparison

The current ROMO Sharpe Ratio is 1.30, which is lower than the SEIM Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of ROMO and SEIM, 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

	ROMO	SEIM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.30	2.28	-0.98
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.57	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	1.19	-0.71

Drawdowns

ROMO vs. SEIM - Drawdown Comparison

The maximum ROMO drawdown since its inception was -28.66%, which is greater than SEIM's maximum drawdown of -22.17%. Use the drawdown chart below to compare losses from any high point for ROMO and SEIM.

Drawdown Indicators

	ROMO	SEIM	Difference
Max Drawdown Largest peak-to-trough decline	-28.66%	-22.17%	-6.49%
Max Drawdown (1Y) Largest decline over 1 year	-11.16%	-10.07%	-1.09%
Max Drawdown (3Y) Largest decline over 3 years	-14.09%	-22.17%	+8.08%
Max Drawdown (5Y) Largest decline over 5 years	-20.26%	—	—
Current Drawdown Current decline from peak	-1.62%	-0.33%	-1.29%
Average Drawdown Average peak-to-trough decline	-8.31%	-3.98%	-4.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.08%	2.29%	+0.79%

Volatility

ROMO vs. SEIM - Volatility Comparison

The current volatility for Strategy Shares Newfound/ReSolve Robust Momentum ETF (ROMO) is 4.12%, while SEI Enhanced US Large Cap Momentum Factor ETF (SEIM) has a volatility of 4.68%. This indicates that ROMO experiences smaller price fluctuations and is considered to be less risky than SEIM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROMO	SEIM	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.12%	4.68%	-0.56%
Volatility (6M) Calculated over the trailing 6-month period	11.11%	13.33%	-2.22%
Volatility (1Y) Calculated over the trailing 1-year period	13.58%	16.28%	-2.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.03%	18.86%	-6.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.45%	18.86%	-4.41%

ROMO vs. SEIM - Expense Ratio Comparison

ROMO has a 0.82% expense ratio, which is higher than SEIM's 0.15% expense ratio.

Dividends

ROMO vs. SEIM - Dividend Comparison

ROMO's dividend yield for the trailing twelve months is around 8.34%, more than SEIM's 0.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
ROMO Strategy Shares Newfound/ReSolve Robust Momentum ETF	8.34%	8.87%	0.76%	2.42%	0.77%	0.56%	0.97%	0.58%
SEIM SEI Enhanced US Large Cap Momentum Factor ETF	0.52%	0.56%	0.48%	0.89%	1.01%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ROMO and SEIM in my portfolio?

ROMO and SEIM have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ROMO or SEIM?

SEIM has higher volatility (4.68%) compared to ROMO (4.12%). In terms of maximum drawdown, ROMO dropped -28.66% vs SEIM's -22.17%.

Which ETF is better, ROMO or SEIM?

On 3-year performance, SEIM leads with 29.67% vs 14.45% for ROMO. On fees, SEIM is cheaper at 0.15% per year. On volatility, ROMO has been the lower-risk option at 4.12%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ROMO or SEIM?

Over the 3-year period, SEIM has performed better with a 29.67% return vs 14.45%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ROMO or SEIM?

SEIM is cheaper with a 0.15% expense ratio, compared with 0.82% for ROMO.

Which ETF pays a higher dividend yield, ROMO or SEIM?

ROMO has the higher dividend yield at 8.34%, compared with 0.52% for SEIM.

What is the main difference between ROMO and SEIM?

They also come from different issuers: Rational Capital LLC and SEI. Their fees differ too: 0.82% for ROMO and 0.15% for SEIM.

Which has better risk-adjusted returns?

SEIM currently has the higher Sharpe Ratio (2.28 vs 1.30), 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.