PortfoliosLab logoPortfoliosLab logo

Documentation

Upgrade your plan
SSSYX vs. SPY
Performance
Return for Risk
Dividends
Drawdowns
Volatility

SSSYX vs. SPY

Last updated Apr 1, 2026

Compare and contrast key facts about State Street Equity 500 Index Fund Class K (SSSYX) and State Street SPDR S&P 500 ETF (SPY).

SSSYX is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Sep 17, 2014. SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993. Both SSSYX and SPY are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SSSYX vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Equity 500 Index Fund Class K (SSSYX) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

Loading graphics...

SSSYX vs. SPY - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
SSSYX
State Street Equity 500 Index Fund Class K		-7.05%17.81%24.99%26.27%-18.16%28.51%18.31%31.38%-4.38%21.61%
SPY
State Street SPDR S&P 500 ETF		-4.37%17.72%24.89%26.18%-18.18%28.73%18.33%31.22%-4.57%21.71%

Returns By Period

In the year-to-date period, SSSYX achieves a -7.05% return, which is significantly lower than SPY's -4.37% return. Both investments have delivered pretty close results over the past 10 years, with SSSYX having a 13.69% annualized return and SPY not far ahead at 13.98%.

SSSYX

1D
-0.39%
1M
-7.67%
YTD
-7.05%
6M
-4.60%
1Y
14.40%
3Y*
17.15%
5Y*
11.37%
10Y*
13.69%

SPY

1D
2.91%
1M
-4.94%
YTD
-4.37%
6M
-1.82%
1Y
17.59%
3Y*
18.19%
5Y*
11.69%
10Y*
13.98%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

State Street Equity 500 Index Fund Class K

State Street SPDR S&P 500 ETF

Often compared with SSSYX:
SSSYX vs. VOOSSSYX vs. RGAGXSSSYX vs. FXAIXSSSYX vs. VIMAXSSSYX vs. VTISSSYX vs. FUIPXSSSYX vs. SPYG
Often compared with SPY:
SPY vs. QQQSPY vs. VOOSPY vs. BRK-BSPY vs. RSPSPY vs. VTISPY vs. SCHDSPY vs. GLD

SSSYX vs. SPY - Expense Ratio Comparison

SSSYX has a 0.02% expense ratio, which is lower than SPY's 0.09% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

SPY
State Street SPDR S&P 500 ETF
SSSYX
State Street Equity 500 Index Fund Class K

Return for Risk

SSSYX vs. SPY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
SSSYX
SSSYX Risk / Return Rank: 4646
Overall Rank
SSSYX Sharpe Ratio Rank: 4141
Sharpe Ratio Rank
SSSYX Sortino Ratio Rank: 4545
Sortino Ratio Rank
SSSYX Omega Ratio Rank: 5050
Omega Ratio Rank
SSSYX Calmar Ratio Rank: 4242
Calmar Ratio Rank
SSSYX Martin Ratio Rank: 5353
Martin Ratio Rank
SPY
SPY Risk / Return Rank: 6464
Overall Rank
SPY Sharpe Ratio Rank: 5656
Sharpe Ratio Rank
SPY Sortino Ratio Rank: 6060
Sortino Ratio Rank
SPY Omega Ratio Rank: 6565
Omega Ratio Rank
SPY Calmar Ratio Rank: 6565
Calmar Ratio Rank
SPY Martin Ratio Rank: 7575
Martin Ratio Rank
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.

SSSYX vs. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Equity 500 Index Fund Class K (SSSYX) 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.

SSSYXSPYDifference

Sharpe ratio

Return per unit of total volatility

0.84

0.93

-0.09

Sortino ratio

Return per unit of downside risk

1.30

1.45

-0.16

Omega ratio

Gain probability vs. loss probability

1.20

1.22

-0.03

Calmar ratio

Return relative to maximum drawdown

1.06

1.53

-0.47

Martin ratio

Return relative to average drawdown

5.13

7.30

-2.17

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SSSYX vs. SPY - Sharpe Ratio Comparison

The current SSSYX Sharpe Ratio is 0.84, which is comparable to the SPY Sharpe Ratio of 0.93. The chart below compares the historical Sharpe Ratios of SSSYX and SPY, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Loading graphics...

Sharpe Ratios by Period

SSSYXSPYDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.84

0.93

-0.09

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.68

0.69

-0.01

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.11

0.78

-0.67

Sharpe Ratio (All Time)

Calculated using the full available price history

0.11

0.56

-0.46

Correlation

The correlation between SSSYX and SPY is 0.99, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

SSSYX vs. SPY - Dividend Comparison

SSSYX's dividend yield for the trailing twelve months is around 1.55%, more than SPY's 1.14% yield.

TTM20252024202320222021202020192018201720162015
SSSYX
State Street Equity 500 Index Fund Class K		1.55%1.44%1.63%1.78%2.16%2.76%1.86%4.44%5.18%5.94%2.07%1.84%
SPY
State Street SPDR S&P 500 ETF		1.14%1.07%1.21%1.40%1.65%1.20%1.52%1.75%2.04%1.80%2.03%2.06%

Drawdowns

SSSYX vs. SPY - Drawdown Comparison

The maximum SSSYX drawdown since its inception was -91.48%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for SSSYX and SPY.

Loading graphics...

Drawdown Indicators

SSSYXSPYDifference

Max Drawdown

Largest peak-to-trough decline

-91.48%

-55.19%

-36.29%

Max Drawdown (1Y)

Largest decline over 1 year

-12.10%

-12.05%

-0.05%

Max Drawdown (5Y)

Largest decline over 5 years

-24.49%

-24.50%

+0.01%

Max Drawdown (10Y)

Largest decline over 10 years

-91.48%

-33.72%

-57.76%

Current Drawdown

Current decline from peak

-8.88%

-6.24%

-2.64%

Average Drawdown

Average peak-to-trough decline

-4.20%

-9.09%

+4.89%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.49%

2.52%

-0.03%

Volatility

SSSYX vs. SPY - Volatility Comparison

The current volatility for State Street Equity 500 Index Fund Class K (SSSYX) is 4.24%, while State Street SPDR S&P 500 ETF (SPY) has a volatility of 5.31%. This indicates that SSSYX experiences smaller price fluctuations and is considered to be less risky than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Loading graphics...

Volatility by Period

SSSYXSPYDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.24%

5.31%

-1.07%

Volatility (6M)

Calculated over the trailing 6-month period

9.08%

9.47%

-0.39%

Volatility (1Y)

Calculated over the trailing 1-year period

18.10%

19.05%

-0.95%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

16.85%

17.06%

-0.21%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

124.43%

17.92%

+106.51%