SPSM vs. OVS

Last updated Jun 24, 2026

SPSM (State Street SPDR Portfolio S&P 600 Small Cap ETF) and OVS (Overlay Shares Small Cap Equity ETF) are both Small Cap Blend Equities funds. SPSM is passively managed, while OVS is actively managed. Over the past 5 years, SPSM returned 6.36%/yr vs 6.48%/yr for OVS. With a 0.97 correlation, they move nearly in lockstep. SPSM charges 0.03%/yr vs 0.83%/yr for OVS.

Performance

SPSM vs. OVS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR Portfolio S&P 600 Small Cap ETF (SPSM) and Overlay Shares Small Cap Equity ETF (OVS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPSM achieves a 19.33% return, which is significantly lower than OVS's 20.91% return.

SPSM

• 1D: -0.34%
• 1M: 4.27%
• YTD: 19.33%
• 6M: 16.91%
• 1Y: 34.61%
• 3Y*: 16.26%
• 5Y*: 6.36%
• 10Y*: 11.47%

OVS

• 1D: -0.41%
• 1M: 3.73%
• YTD: 20.91%
• 6M: 18.05%
• 1Y: 38.42%
• 3Y*: 17.64%
• 5Y*: 6.48%
• 10Y*: —

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

SPSM vs. OVS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
SPSM State Street SPDR Portfolio S&P 600 Small Cap ETF	19.33%	6.11%	8.55%	16.11%	-16.12%	26.67%	11.69%	9.31%
OVS Overlay Shares Small Cap Equity ETF	20.91%	6.15%	11.07%	17.20%	-19.99%	30.15%	12.16%	9.35%

Correlation

The correlation between SPSM and OVS is 0.99 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.99
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (All Time) Calculated using the full available price history since Oct 1, 2019	0.97

The correlation between SPSM and OVS has been stable across timeframes, ranging from 0.97 to 0.99 - a consistent structural relationship.

SPSM vs. OVS - Sectors Allocation Comparison

Sectors	SPSM	OVS
Technology	17.1%	17.5%
Financial Services	16.5%	16.4%
Industrials	15.2%	15.1%
Consumer Cyclical	13.1%	13.1%
Healthcare	11.0%	10.9%
Real Estate	7.6%	7.5%
Energy	5.4%	5.4%
Basic Materials	5.0%	5.0%
Communication Services	3.7%	3.7%
Consumer Defensive	3.6%	3.7%
Utilities	1.9%	1.9%

Return for Risk

SPSM vs. OVS — Risk / Return Rank

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

SPSM

SPSM Risk / Return Rank: 67
SPSM Sharpe Ratio Rank: 62
SPSM Sortino Ratio Rank: 64
SPSM Omega Ratio Rank: 57
SPSM Calmar Ratio Rank: 79
SPSM Martin Ratio Rank: 74

OVS

OVS Risk / Return Rank: 71
OVS Sharpe Ratio Rank: 65
OVS Sortino Ratio Rank: 66
OVS Omega Ratio Rank: 60
OVS Calmar Ratio Rank: 86
OVS 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.

SPSM vs. OVS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR Portfolio S&P 600 Small Cap ETF (SPSM) and Overlay Shares Small Cap Equity ETF (OVS). 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.

	SPSM	OVS	Difference
Sharpe ratio: Return per unit of total volatility	1.97	1.99	-0.01
Sortino ratio: Return per unit of downside risk	2.85	2.82	+0.03
Omega ratio: Gain probability vs. loss probability	1.34	1.34	0.00
Calmar ratio: Return relative to maximum drawdown	3.99	4.54	-0.55
Martin ratio: Return relative to average drawdown	13.45	14.73	-1.28

SPSM vs. OVS - Sharpe Ratio Comparison

The current SPSM Sharpe Ratio is 1.97, which is comparable to the OVS Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of SPSM and OVS, 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

SPSM vs. OVS - Drawdown Comparison

The maximum SPSM drawdown since its inception was -42.89%, roughly equal to the maximum OVS drawdown of -45.09%. Use the drawdown chart below to compare losses from any high point for SPSM and OVS.

Drawdown Indicators

	SPSM	OVS	Difference
Max Drawdown Largest peak-to-trough decline	-42.89%	-45.09%	+2.20%
Max Drawdown (1Y) Largest decline over 1 year	-8.72%	-8.51%	-0.21%
Max Drawdown (3Y) Largest decline over 3 years	-27.94%	-30.49%	+2.55%
Max Drawdown (5Y) Largest decline over 5 years	-27.94%	-30.49%	+2.55%
Max Drawdown (10Y) Largest decline over 10 years	-42.89%	—	—
Current Drawdown Current decline from peak	-0.41%	-0.63%	+0.22%
Average Drawdown Average peak-to-trough decline	-7.89%	-11.27%	+3.38%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.58%	2.61%	-0.03%

Volatility

SPSM vs. OVS - Volatility Comparison

The current volatility for State Street SPDR Portfolio S&P 600 Small Cap ETF (SPSM) is 4.93%, while Overlay Shares Small Cap Equity ETF (OVS) has a volatility of 5.30%. This indicates that SPSM experiences smaller price fluctuations and is considered to be less risky than OVS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPSM	OVS	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.93%	5.30%	-0.37%
Volatility (6M) Calculated over the trailing 6-month period	12.04%	13.42%	-1.38%
Volatility (1Y) Calculated over the trailing 1-year period	17.65%	19.47%	-1.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.42%	23.24%	-1.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.99%	27.42%	-4.43%

SPSM vs. OVS - Expense Ratio Comparison

SPSM has a 0.03% expense ratio, which is lower than OVS's 0.83% expense ratio.

Dividends

SPSM vs. OVS - Dividend Comparison

SPSM's dividend yield for the trailing twelve months is around 1.41%, less than OVS's 6.64% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OVS Overlay Shares Small Cap Equity ETF	6.64%	3.69%	4.08%	3.19%	3.43%	4.05%	1.74%	0.54%	0.00%	0.00%	0.00%	0.00%
SPSM State Street SPDR Portfolio S&P 600 Small Cap ETF	1.41%	1.62%	1.85%	1.61%	1.38%	1.40%	1.34%	1.58%	1.82%	1.51%	1.49%	2.37%

Frequently Asked Questions

Can I hold both SPSM and OVS in my portfolio?

With a correlation of 0.99, SPSM and OVS 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, SPSM or OVS?

OVS has higher volatility (5.30%) compared to SPSM (4.93%). In terms of maximum drawdown, SPSM dropped -42.89% vs OVS's -45.09%.

Which ETF is better, SPSM or OVS?

On 5-year performance, OVS leads with 6.48% vs 6.36% for SPSM. On fees, SPSM is cheaper at 0.03% per year. On volatility, SPSM has been the lower-risk option at 4.93%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SPSM or OVS?

Over the 5-year period, OVS has performed better with a 6.48% return vs 6.36%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SPSM or OVS?

SPSM is cheaper with a 0.03% expense ratio, compared with 0.83% for OVS.

Which ETF pays a higher dividend yield, SPSM or OVS?

OVS has the higher dividend yield at 6.64%, compared with 1.41% for SPSM.

What is the main difference between SPSM and OVS?

They also come from different issuers: State Street and Liquid Strategies. Their fees differ too: 0.03% for SPSM and 0.83% for OVS.

Which has better risk-adjusted returns?

OVS currently has the higher Sharpe Ratio (1.99 vs 1.97), 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.