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SPTS vs. SPYM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

SPTS vs. SPYM

Last updated Jun 4, 2026

SPTS (SPDR Portfolio Short Term Treasury ETF) and SPYM (State Street SPDR Portfolio S&P 500 ETF) are both exchange-traded funds - SPTS is a Government Bonds fund tracking the Bloomberg U.S. Treasury 1-3 Year Index, while SPYM is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, SPTS returned 1.67%/yr vs 15.62%/yr for SPYM. At a correlation of -0.12, they often move in opposite directions. SPTS charges 0.03%/yr vs 0.02%/yr for SPYM.

Performance

SPTS vs. SPYM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR Portfolio Short Term Treasury ETF (SPTS) and State Street SPDR Portfolio S&P 500 ETF (SPYM). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, SPTS achieves a 0.45% return, which is significantly lower than SPYM's 10.98% return. Over the past 10 years, SPTS has underperformed SPYM with an annualized return of 1.67%, while SPYM has yielded a comparatively higher 15.62% annualized return.

SPTS

1D
-0.07%
1M
0.05%
YTD
0.45%
6M
0.77%
1Y
3.45%
3Y*
4.18%
5Y*
1.81%
10Y*
1.67%

SPYM

1D
-0.66%
1M
5.06%
YTD
10.98%
6M
10.98%
1Y
28.09%
3Y*
22.46%
5Y*
13.91%
10Y*
15.62%
*Multi-year figures are annualized to reflect compound growth (CAGR)

SPTS vs. SPYM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
SPTS
SPDR Portfolio Short Term Treasury ETF		0.45%5.05%4.20%4.27%-3.86%-0.72%3.23%3.56%1.08%0.59%
SPYM
State Street SPDR Portfolio S&P 500 ETF		10.98%17.79%25.00%26.24%-18.09%28.78%18.49%31.99%-4.78%21.30%

Correlation

The correlation between SPTS and SPYM is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.13

Correlation (3Y)
Calculated over the trailing 3-year period

0.02

Correlation (5Y)
Calculated over the trailing 5-year period

0.04

Correlation (10Y)
Calculated over the trailing 10-year period

-0.10

Correlation (All Time)
Calculated using the full available price history since Dec 2, 2011

-0.13

The correlation between SPTS and SPYM shifts across timeframes, from -0.12 (all time) to 0.13 (1 year), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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SPDR Portfolio Short Term Treasury ETF

State Street SPDR Portfolio S&P 500 ETF

Often compared with SPTS:
SPTS vs. SGOVSPTS vs. BILSPTS vs. VGSHSPTS vs. SCHOSPTS vs. SHYSPTS vs. SPTISPTS vs. BSV
Often compared with SPYM:
SPYM vs. SPYSPYM vs. VOOSPYM vs. QQQMSPYM vs. SPMOSPYM vs. VTISPYM vs. SPYGSPYM vs. SCHG

Return for Risk

SPTS vs. SPYM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
SPTS
SPTS Risk / Return Rank: 8484
Overall Rank
SPTS Sharpe Ratio Rank: 7979
Sharpe Ratio Rank
SPTS Sortino Ratio Rank: 9191
Sortino Ratio Rank
SPTS Omega Ratio Rank: 8787
Omega Ratio Rank
SPTS Calmar Ratio Rank: 7979
Calmar Ratio Rank
SPTS Martin Ratio Rank: 8282
Martin Ratio Rank
SPYM
SPYM Risk / Return Rank: 7070
Overall Rank
SPYM Sharpe Ratio Rank: 7171
Sharpe Ratio Rank
SPYM Sortino Ratio Rank: 7070
Sortino Ratio Rank
SPYM Omega Ratio Rank: 7171
Omega Ratio Rank
SPYM Calmar Ratio Rank: 6262
Calmar Ratio Rank
SPYM Martin Ratio Rank: 7676
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.

SPTS vs. SPYM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Short Term Treasury ETF (SPTS) and State Street SPDR Portfolio S&P 500 ETF (SPYM). 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.

SPTSSPYMDifference
Sharpe ratioReturn per unit of total volatility
2.63
2.39

+0.24

Sortino ratioReturn per unit of downside risk
4.47
3.27

+1.20

Omega ratioGain probability vs. loss probability

1.55

1.44

+0.12

Calmar ratioReturn relative to maximum drawdown

4.13

3.17

+0.96

Martin ratioReturn relative to average drawdown

16.52

14.76

+1.77

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

SPTS vs. SPYM - Sharpe Ratio Comparison

The current SPTS Sharpe Ratio is 2.63, which is comparable to the SPYM Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of SPTS and SPYM, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

SPTSSPYMDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.63

2.39

+0.24

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.92

0.83

+0.09

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.98

0.87

+0.11

Sharpe Ratio (All Time)

Calculated using the full available price history

0.49

0.62

-0.13

Drawdowns

SPTS vs. SPYM - Drawdown Comparison

The maximum SPTS drawdown since its inception was -5.83%, smaller than the maximum SPYM drawdown of -54.46%. Use the drawdown chart below to compare losses from any high point for SPTS and SPYM.

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Drawdown Indicators

SPTSSPYMDifference

Max Drawdown

Largest peak-to-trough decline

-5.83%

-54.46%

+48.63%

Max Drawdown (1Y)

Largest decline over 1 year

-0.84%

-8.90%

+8.06%

Max Drawdown (3Y)

Largest decline over 3 years

-0.96%

-18.72%

+17.76%

Max Drawdown (5Y)

Largest decline over 5 years

-5.71%

-24.48%

+18.77%

Max Drawdown (10Y)

Largest decline over 10 years

-5.71%

-33.87%

+28.16%

Current Drawdown

Current decline from peak

-0.28%

-0.66%

+0.38%

Average Drawdown

Average peak-to-trough decline

-1.72%

-7.15%

+5.43%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.21%

1.91%

-1.70%

Volatility

SPTS vs. SPYM - Volatility Comparison

The current volatility for SPDR Portfolio Short Term Treasury ETF (SPTS) is 0.34%, while State Street SPDR Portfolio S&P 500 ETF (SPYM) has a volatility of 2.83%. This indicates that SPTS experiences smaller price fluctuations and is considered to be less risky than SPYM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

SPTSSPYMDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.34%

2.83%

-2.49%

Volatility (6M)

Calculated over the trailing 6-month period

0.86%

8.90%

-8.04%

Volatility (1Y)

Calculated over the trailing 1-year period

1.32%

11.80%

-10.48%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

1.98%

16.80%

-14.82%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

1.72%

18.00%

-16.28%

SPTS vs. SPYM - Expense Ratio Comparison

SPTS has a 0.03% expense ratio, which is higher than SPYM's 0.02% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

SPTS vs. SPYM - Dividend Comparison

SPTS's dividend yield for the trailing twelve months is around 3.91%, more than SPYM's 1.00% yield.

PositionTTM20252024202320222021202020192018201720162015
SPTS
SPDR Portfolio Short Term Treasury ETF		3.91%3.99%4.25%3.61%1.27%0.19%0.70%2.21%2.04%1.20%0.95%0.83%
SPYM
State Street SPDR Portfolio S&P 500 ETF		1.00%1.13%1.28%1.44%1.69%1.25%1.54%1.79%2.23%1.75%1.97%1.98%

Frequently Asked Questions

SPTS and SPYM have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

SPYM has higher volatility (2.83%) compared to SPTS (0.34%). In terms of maximum drawdown, SPTS dropped -5.83% vs SPYM's -54.46%.

On 10-year performance, SPYM leads with 15.62% vs 1.67% for SPTS. On fees, SPYM is cheaper at 0.02% per year. On volatility, SPTS has been the lower-risk option at 0.34%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, SPYM has performed better with a 15.62% return vs 1.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

SPYM is cheaper with a 0.02% expense ratio, compared with 0.03% for SPTS.

SPTS has the higher dividend yield at 3.91%, compared with 1.00% for SPYM.

SPTS is categorized as Government Bonds, while SPYM is S&P 500. SPTS tracks Bloomberg U.S. Treasury 1-3 Year Index, while SPYM tracks S&P 500 Index. Their fees differ too: 0.03% for SPTS and 0.02% for SPYM.

SPTS currently has the higher Sharpe Ratio (2.63 vs 2.39), 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.

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