SEIM vs. FDMO

Last updated Jun 23, 2026

SEIM (SEI Enhanced US Large Cap Momentum Factor ETF) and FDMO (Fidelity Momentum Factor ETF) are both Momentum funds. SEIM is actively managed, while FDMO is passively managed. Over the past 3 years, SEIM returned 30.04%/yr vs 28.88%/yr for FDMO. Their correlation of 0.94 suggests significant overlap in exposure. SEIM charges 0.15%/yr vs 0.29%/yr for FDMO.

Performance

SEIM vs. FDMO - Performance Comparison

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

Returns By Period

In the year-to-date period, SEIM achieves a 21.04% return, which is significantly higher than FDMO's 17.75% return.

SEIM

• 1D: 0.81%
• 1M: 5.31%
• YTD: 21.04%
• 6M: 19.67%
• 1Y: 39.75%
• 3Y*: 30.04%
• 5Y*: —
• 10Y*: —

FDMO

• 1D: 0.76%
• 1M: 5.09%
• YTD: 17.75%
• 6M: 16.14%
• 1Y: 36.31%
• 3Y*: 28.88%
• 5Y*: 16.52%
• 10Y*: —

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

SEIM vs. FDMO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
SEIM SEI Enhanced US Large Cap Momentum Factor ETF	21.04%	20.20%	39.12%	16.25%	-5.62%
FDMO Fidelity Momentum Factor ETF	17.75%	21.43%	32.78%	24.79%	-3.72%

Correlation

The correlation between SEIM and FDMO is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (All Time) Calculated using the full available price history since May 18, 2022	0.94

The correlation between SEIM and FDMO has been stable across timeframes, ranging from 0.92 to 0.94 - a consistent structural relationship.

SEIM vs. FDMO - Sectors Allocation Comparison

Sectors	SEIM	FDMO
Technology	29.5%	38.3%
Energy	11.8%	3.2%
Healthcare	9.5%	8.7%
Financial Services	8.1%	11.3%
Consumer Defensive	7.9%	4.0%
Consumer Cyclical	7.2%	9.8%
Real Estate	7.2%	2.0%
Industrials	6.8%	9.1%
Basic Materials	4.7%	2.1%
Communication Services	4.4%	9.4%
Utilities	2.4%	2.1%

Return for Risk

SEIM vs. FDMO — Risk / Return Rank

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

SEIM

SEIM Risk / Return Rank: 76
SEIM Sharpe Ratio Rank: 75
SEIM Sortino Ratio Rank: 71
SEIM Omega Ratio Rank: 71
SEIM Calmar Ratio Rank: 79
SEIM Martin Ratio Rank: 85

FDMO

FDMO Risk / Return Rank: 63
FDMO Sharpe Ratio Rank: 65
FDMO Sortino Ratio Rank: 61
FDMO Omega Ratio Rank: 62
FDMO Calmar Ratio Rank: 62
FDMO 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.

SEIM vs. FDMO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Enhanced US Large Cap Momentum Factor ETF (SEIM) and Fidelity Momentum Factor ETF (FDMO). 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.

	SEIM	FDMO	Difference
Sharpe ratio: Return per unit of total volatility	2.31	2.07	+0.24
Sortino ratio: Return per unit of downside risk	3.09	2.77	+0.32
Omega ratio: Gain probability vs. loss probability	1.40	1.36	+0.04
Calmar ratio: Return relative to maximum drawdown	3.97	2.98	+0.98
Martin ratio: Return relative to average drawdown	17.00	11.68	+5.32

SEIM vs. FDMO - Sharpe Ratio Comparison

The current SEIM Sharpe Ratio is 2.31, which is comparable to the FDMO Sharpe Ratio of 2.07. The chart below compares the historical Sharpe Ratios of SEIM and FDMO, 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

SEIM vs. FDMO - Drawdown Comparison

The maximum SEIM drawdown since its inception was -22.17%, smaller than the maximum FDMO drawdown of -33.94%. Use the drawdown chart below to compare losses from any high point for SEIM and FDMO.

Drawdown Indicators

	SEIM	FDMO	Difference
Max Drawdown Largest peak-to-trough decline	-22.17%	-33.94%	+11.77%
Max Drawdown (1Y) Largest decline over 1 year	-10.07%	-12.22%	+2.15%
Max Drawdown (3Y) Largest decline over 3 years	-22.17%	-21.88%	-0.29%
Max Drawdown (5Y) Largest decline over 5 years	—	-25.44%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-3.97%	-5.40%	+1.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.34%	3.12%	-0.78%

Volatility

SEIM vs. FDMO - Volatility Comparison

The current volatility for SEI Enhanced US Large Cap Momentum Factor ETF (SEIM) is 6.75%, while Fidelity Momentum Factor ETF (FDMO) has a volatility of 7.14%. This indicates that SEIM experiences smaller price fluctuations and is considered to be less risky than FDMO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEIM	FDMO	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.75%	7.14%	-0.39%
Volatility (6M) Calculated over the trailing 6-month period	14.33%	14.35%	-0.02%
Volatility (1Y) Calculated over the trailing 1-year period	17.32%	17.67%	-0.35%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.07%	19.20%	-0.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.07%	19.57%	-0.50%

SEIM vs. FDMO - Expense Ratio Comparison

SEIM has a 0.15% expense ratio, which is lower than FDMO's 0.29% expense ratio.

Dividends

SEIM vs. FDMO - Dividend Comparison

SEIM's dividend yield for the trailing twelve months is around 0.51%, less than FDMO's 0.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
FDMO Fidelity Momentum Factor ETF	0.58%	0.61%	0.90%	0.87%	1.19%	0.60%	0.77%	1.23%	1.22%	1.09%	0.45%
SEIM SEI Enhanced US Large Cap Momentum Factor ETF	0.51%	0.56%	0.48%	0.89%	1.01%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SEIM and FDMO in my portfolio?

With a correlation of 0.92, SEIM and FDMO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, SEIM or FDMO?

FDMO has higher volatility (7.14%) compared to SEIM (6.75%). In terms of maximum drawdown, SEIM dropped -22.17% vs FDMO's -33.94%.

Which ETF is better, SEIM or FDMO?

On 3-year performance, SEIM leads with 30.04% vs 28.88% for FDMO. On fees, SEIM is cheaper at 0.15% per year. On volatility, SEIM has been the lower-risk option at 6.75%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SEIM or FDMO?

Over the 3-year period, SEIM has performed better with a 30.04% return vs 28.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SEIM or FDMO?

SEIM is cheaper with a 0.15% expense ratio, compared with 0.29% for FDMO.

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

FDMO has the higher dividend yield at 0.58%, compared with 0.51% for SEIM.

What is the main difference between SEIM and FDMO?

They also come from different issuers: SEI and Fidelity. Their fees differ too: 0.15% for SEIM and 0.29% for FDMO.

Which has better risk-adjusted returns?

SEIM currently has the higher Sharpe Ratio (2.31 vs 2.07), 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.