IMOM vs. SPY

Last updated Jun 24, 2026

IMOM (Alpha Architect International Quantitative Momentum ETF) and SPY (State Street SPDR S&P 500 ETF) are both exchange-traded funds - IMOM is a Momentum fund tracking the Alpha Architect Intern.Quan. Mome. (USD)(TR), while SPY is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, IMOM returned 7.38%/yr vs 15.53%/yr for SPY. A 0.61 correlation means they provide meaningful diversification when combined. IMOM charges 0.38%/yr vs 0.09%/yr for SPY.

Performance

IMOM vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Alpha Architect International Quantitative Momentum ETF (IMOM) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IMOM achieves a 13.79% return, which is significantly higher than SPY's 8.15% return. Over the past 10 years, IMOM has underperformed SPY with an annualized return of 7.38%, while SPY has yielded a comparatively higher 15.53% annualized return.

IMOM

• 1D: -2.92%
• 1M: -3.30%
• YTD: 13.79%
• 6M: 13.08%
• 1Y: 36.25%
• 3Y*: 23.30%
• 5Y*: 8.09%
• 10Y*: 7.38%

SPY

• 1D: -1.45%
• 1M: -1.36%
• YTD: 8.15%
• 6M: 7.20%
• 1Y: 23.59%
• 3Y*: 20.68%
• 5Y*: 13.05%
• 10Y*: 15.53%

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

IMOM vs. SPY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IMOM Alpha Architect International Quantitative Momentum ETF	13.79%	47.20%	5.22%	9.15%	-21.92%	-0.75%	28.39%	18.26%	-23.07%	34.83%
SPY State Street SPDR S&P 500 ETF	8.15%	17.72%	24.89%	26.18%	-18.18%	28.73%	18.33%	31.22%	-4.57%	21.71%

Correlation

The correlation between IMOM and SPY is 0.66, 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	0.66
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.67
Correlation (10Y) Calculated over the trailing 10-year period	0.63
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.61

The correlation between IMOM and SPY has been stable across timeframes, ranging from 0.61 to 0.67 - a consistent structural relationship.

IMOM vs. SPY - Sectors Allocation Comparison

Sectors	IMOM	SPY
Industrials	31.2%	7.8%
Technology	18.7%	39.0%
Basic Materials	14.5%	1.7%
Utilities	10.7%	2.1%
Energy	10.3%	3.1%
Communication Services	6.3%	10.6%
Financial Services	4.2%	11.1%
Real Estate	4.2%	1.8%
Healthcare	3.3%	8.3%
Consumer Cyclical	1.7%	9.9%
Consumer Defensive	-	4.5%

Return for Risk

IMOM vs. SPY — Risk / Return Rank

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

IMOM

IMOM Risk / Return Rank: 53
IMOM Sharpe Ratio Rank: 54
IMOM Sortino Ratio Rank: 52
IMOM Omega Ratio Rank: 55
IMOM Calmar Ratio Rank: 49
IMOM Martin Ratio Rank: 56

SPY

SPY Risk / Return Rank: 59
SPY Sharpe Ratio Rank: 58
SPY Sortino Ratio Rank: 56
SPY Omega Ratio Rank: 57
SPY Calmar Ratio Rank: 56
SPY Martin Ratio Rank: 67

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.

IMOM vs. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Alpha Architect International Quantitative Momentum ETF (IMOM) and State Street SPDR S&P 500 ETF (SPY). 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.

	IMOM	SPY	Difference
Sharpe ratio: Return per unit of total volatility	1.76	1.90	-0.14
Sortino ratio: Return per unit of downside risk	2.40	2.58	-0.19
Omega ratio: Gain probability vs. loss probability	1.32	1.34	-0.02
Calmar ratio: Return relative to maximum drawdown	2.33	2.67	-0.33
Martin ratio: Return relative to average drawdown	9.33	11.92	-2.59

IMOM vs. SPY - Sharpe Ratio Comparison

The current IMOM Sharpe Ratio is 1.76, which is comparable to the SPY Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of IMOM and SPY, 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

IMOM vs. SPY - Drawdown Comparison

The maximum IMOM drawdown since its inception was -45.74%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for IMOM and SPY.

Drawdown Indicators

	IMOM	SPY	Difference
Max Drawdown Largest peak-to-trough decline	-45.74%	-55.19%	+9.45%
Max Drawdown (1Y) Largest decline over 1 year	-15.61%	-8.88%	-6.73%
Max Drawdown (3Y) Largest decline over 3 years	-17.51%	-18.76%	+1.25%
Max Drawdown (5Y) Largest decline over 5 years	-39.27%	-24.50%	-14.77%
Max Drawdown (10Y) Largest decline over 10 years	-45.74%	-33.72%	-12.02%
Current Drawdown Current decline from peak	-5.97%	-3.17%	-2.80%
Average Drawdown Average peak-to-trough decline	-14.13%	-9.04%	-5.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.90%	1.98%	+1.92%

Volatility

IMOM vs. SPY - Volatility Comparison

Alpha Architect International Quantitative Momentum ETF (IMOM) has a higher volatility of 8.35% compared to State Street SPDR S&P 500 ETF (SPY) at 4.87%. This indicates that IMOM's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IMOM	SPY	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.35%	4.87%	+3.48%
Volatility (6M) Calculated over the trailing 6-month period	18.24%	9.85%	+8.39%
Volatility (1Y) Calculated over the trailing 1-year period	20.70%	12.50%	+8.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.07%	17.15%	+2.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.28%	17.95%	+2.33%

IMOM vs. SPY - Expense Ratio Comparison

IMOM has a 0.38% expense ratio, which is higher than SPY's 0.09% expense ratio.

Dividends

IMOM vs. SPY - Dividend Comparison

IMOM's dividend yield for the trailing twelve months is around 2.22%, more than SPY's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IMOM Alpha Architect International Quantitative Momentum ETF	2.22%	2.53%	4.52%	2.95%	6.06%	1.27%	0.59%	1.17%	0.78%	1.11%	0.54%	0.00%
SPY State Street SPDR S&P 500 ETF	1.03%	1.07%	1.21%	1.40%	1.65%	1.20%	1.52%	1.75%	2.04%	1.80%	2.03%	2.06%

Frequently Asked Questions

Can I hold both IMOM and SPY in my portfolio?

IMOM and SPY have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IMOM or SPY?

IMOM has higher volatility (8.35%) compared to SPY (4.87%). In terms of maximum drawdown, IMOM dropped -45.74% vs SPY's -55.19%.

Which ETF is better, IMOM or SPY?

On 10-year performance, SPY leads with 15.53% vs 7.38% for IMOM. On fees, SPY is cheaper at 0.09% per year. On volatility, SPY has been the lower-risk option at 4.87%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IMOM or SPY?

Over the 10-year period, SPY has performed better with a 15.53% return vs 7.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IMOM or SPY?

SPY is cheaper with a 0.09% expense ratio, compared with 0.38% for IMOM.

Which ETF pays a higher dividend yield, IMOM or SPY?

IMOM has the higher dividend yield at 2.22%, compared with 1.03% for SPY.

What is the main difference between IMOM and SPY?

IMOM is categorized as Momentum, while SPY is S&P 500. IMOM tracks Alpha Architect Intern.Quan. Mome. (USD)(TR), while SPY tracks S&P 500 Index. They also come from different issuers: Alpha Architect and State Street. Their fees differ too: 0.38% for IMOM and 0.09% for SPY.

Which has better risk-adjusted returns?

SPY currently has the higher Sharpe Ratio (1.90 vs 1.76), 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.