FDMO vs. SEIM

Last updated Jun 24, 2026

FDMO (Fidelity Momentum Factor ETF) and SEIM (SEI Enhanced US Large Cap Momentum Factor ETF) are both Momentum funds. FDMO is passively managed, while SEIM is actively managed. Over the past 3 years, FDMO returned 27.66%/yr vs 29.06%/yr for SEIM. Their correlation of 0.94 suggests significant overlap in exposure. FDMO charges 0.29%/yr vs 0.15%/yr for SEIM.

Performance

FDMO vs. SEIM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Momentum Factor ETF (FDMO) 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, FDMO achieves a 14.45% return, which is significantly lower than SEIM's 18.33% return.

FDMO

• 1D: -2.80%
• 1M: 2.15%
• YTD: 14.45%
• 6M: 12.49%
• 1Y: 31.10%
• 3Y*: 27.66%
• 5Y*: 15.71%
• 10Y*: —

SEIM

• 1D: -2.24%
• 1M: 2.95%
• YTD: 18.33%
• 6M: 16.44%
• 1Y: 34.90%
• 3Y*: 29.06%
• 5Y*: —
• 10Y*: —

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

FDMO vs. SEIM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
FDMO Fidelity Momentum Factor ETF	14.45%	21.43%	32.78%	24.79%	-3.72%
SEIM SEI Enhanced US Large Cap Momentum Factor ETF	18.33%	20.20%	39.12%	16.25%	-5.62%

Correlation

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

FDMO vs. SEIM - Sectors Allocation Comparison

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

Return for Risk

FDMO vs. SEIM — Risk / Return Rank

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

FDMO

FDMO Risk / Return Rank: 53
FDMO Sharpe Ratio Rank: 53
FDMO Sortino Ratio Rank: 50
FDMO Omega Ratio Rank: 51
FDMO Calmar Ratio Rank: 54
FDMO Martin Ratio Rank: 59

SEIM

SEIM Risk / Return Rank: 68
SEIM Sharpe Ratio Rank: 65
SEIM Sortino Ratio Rank: 62
SEIM Omega Ratio Rank: 62
SEIM Calmar Ratio Rank: 72
SEIM Martin Ratio Rank: 80

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.

FDMO vs. SEIM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Momentum Factor ETF (FDMO) 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.

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.

	FDMO	SEIM	Difference
Sharpe ratio: Return per unit of total volatility	1.75	2.01	-0.26
Sortino ratio: Return per unit of downside risk	2.37	2.72	-0.35
Omega ratio: Gain probability vs. loss probability	1.31	1.35	-0.04
Calmar ratio: Return relative to maximum drawdown	2.56	3.48	-0.93
Martin ratio: Return relative to average drawdown	9.99	14.90	-4.91

FDMO vs. SEIM - Sharpe Ratio Comparison

The current FDMO Sharpe Ratio is 1.75, which is comparable to the SEIM Sharpe Ratio of 2.01. The chart below compares the historical Sharpe Ratios of FDMO 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.

Drawdowns

FDMO vs. SEIM - Drawdown Comparison

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

Drawdown Indicators

	FDMO	SEIM	Difference
Max Drawdown Largest peak-to-trough decline	-33.94%	-22.17%	-11.77%
Max Drawdown (1Y) Largest decline over 1 year	-12.22%	-10.07%	-2.15%
Max Drawdown (3Y) Largest decline over 3 years	-21.88%	-22.17%	+0.29%
Max Drawdown (5Y) Largest decline over 5 years	-25.44%	—	—
Current Drawdown Current decline from peak	-2.80%	-2.24%	-0.56%
Average Drawdown Average peak-to-trough decline	-5.40%	-3.97%	-1.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.12%	2.35%	+0.77%

Volatility

FDMO vs. SEIM - Volatility Comparison

Fidelity Momentum Factor ETF (FDMO) has a higher volatility of 7.76% compared to SEI Enhanced US Large Cap Momentum Factor ETF (SEIM) at 7.15%. This indicates that FDMO's price experiences larger fluctuations and is considered to be riskier than SEIM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDMO	SEIM	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.76%	7.15%	+0.61%
Volatility (6M) Calculated over the trailing 6-month period	14.60%	14.49%	+0.11%
Volatility (1Y) Calculated over the trailing 1-year period	17.88%	17.45%	+0.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.25%	19.09%	+0.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.59%	19.09%	+0.50%

FDMO vs. SEIM - Expense Ratio Comparison

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

Dividends

FDMO vs. SEIM - Dividend Comparison

FDMO's dividend yield for the trailing twelve months is around 0.59%, more than SEIM's 0.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
FDMO Fidelity Momentum Factor ETF	0.59%	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	0.52%	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 FDMO and SEIM in my portfolio?

With a correlation of 0.92, FDMO and SEIM 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, FDMO or SEIM?

FDMO has higher volatility (7.76%) compared to SEIM (7.15%). In terms of maximum drawdown, FDMO dropped -33.94% vs SEIM's -22.17%.

Which ETF is better, FDMO or SEIM?

On 3-year performance, SEIM leads with 29.06% vs 27.66% for FDMO. On fees, SEIM is cheaper at 0.15% per year. On volatility, SEIM has been the lower-risk option at 7.15%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FDMO or SEIM?

Over the 3-year period, SEIM has performed better with a 29.06% return vs 27.66%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FDMO or SEIM?

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

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

FDMO has the higher dividend yield at 0.59%, compared with 0.52% for SEIM.

What is the main difference between FDMO and SEIM?

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

Which has better risk-adjusted returns?

SEIM currently has the higher Sharpe Ratio (2.01 vs 1.75), 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.