SPTL vs. PDI

Last updated Jun 9, 2026

SPTL (SPDR Portfolio Long Term Treasury ETF) is Government Bonds fund tracking the Bloomberg Long U.S. Treasury Index, while PDI (PIMCO Dynamic Income Fund) is a stock. Over the past 10 years, SPTL returned -1.31%/yr vs 7.56%/yr for PDI. At a 0.02 correlation, their price movements are largely independent.

Performance

SPTL vs. PDI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR Portfolio Long Term Treasury ETF (SPTL) and PIMCO Dynamic Income Fund (PDI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPTL achieves a -1.15% return, which is significantly lower than PDI's 0.27% return. Over the past 10 years, SPTL has underperformed PDI with an annualized return of -1.31%, while PDI has yielded a comparatively higher 7.56% annualized return.

SPTL

• 1D: -0.43%
• 1M: -1.25%
• YTD: -1.15%
• 6M: -1.22%
• 1Y: 4.16%
• 3Y*: -0.92%
• 5Y*: -5.68%
• 10Y*: -1.31%

PDI

• 1D: -0.54%
• 1M: -4.51%
• YTD: 0.27%
• 6M: -0.40%
• 1Y: 1.93%
• 3Y*: 10.92%
• 5Y*: 2.42%
• 10Y*: 7.56%

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

SPTL vs. PDI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPTL SPDR Portfolio Long Term Treasury ETF	-1.15%	5.28%	-6.23%	3.30%	-29.44%	-4.99%	18.07%	13.74%	-1.57%	9.01%
PDI PIMCO Dynamic Income Fund	0.27%	11.03%	17.18%	11.99%	-16.99%	7.81%	-9.96%	22.23%	7.35%	18.59%

Correlation

The correlation between SPTL and PDI is 0.14, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.14
Correlation (3Y) Calculated over the trailing 3-year period	0.17
Correlation (5Y) Calculated over the trailing 5-year period	0.15
Correlation (10Y) Calculated over the trailing 10-year period	0.03
Correlation (All Time) Calculated using the full available price history since May 29, 2012	0.02

The correlation between SPTL and PDI shifts across timeframes, from 0.02 (all time) to 0.17 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

SPTL vs. PDI — Risk / Return Rank

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

SPTL

SPTL Risk / Return Rank: 17
SPTL Sharpe Ratio Rank: 17
SPTL Sortino Ratio Rank: 16
SPTL Omega Ratio Rank: 16
SPTL Calmar Ratio Rank: 17
SPTL Martin Ratio Rank: 17

PDI

PDI Risk / Return Rank: 44
PDI Sharpe Ratio Rank: 48
PDI Sortino Ratio Rank: 37
PDI Omega Ratio Rank: 40
PDI Calmar Ratio Rank: 46
PDI Martin Ratio Rank: 47

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.

SPTL vs. PDI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Long Term Treasury ETF (SPTL) and PIMCO Dynamic Income Fund (PDI). 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.

	SPTL	PDI	Difference
Sharpe ratio: Return per unit of total volatility	0.48	0.17	+0.31
Sortino ratio: Return per unit of downside risk	0.74	0.29	+0.45
Omega ratio: Gain probability vs. loss probability	1.08	1.05	+0.04
Calmar ratio: Return relative to maximum drawdown	0.59	0.18	+0.42
Martin ratio: Return relative to average drawdown	1.52	0.39	+1.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPTL vs. PDI - Sharpe Ratio Comparison

The current SPTL Sharpe Ratio is 0.48, which is higher than the PDI Sharpe Ratio of 0.17. The chart below compares the historical Sharpe Ratios of SPTL and PDI, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SPTL	PDI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.48	0.17	+0.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.39	0.16	-0.55
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.09	0.40	-0.49
Sharpe Ratio (All Time) Calculated using the full available price history	0.24	0.58	-0.35

Drawdowns

SPTL vs. PDI - Drawdown Comparison

The maximum SPTL drawdown since its inception was -46.20%, roughly equal to the maximum PDI drawdown of -46.47%. Use the drawdown chart below to compare losses from any high point for SPTL and PDI.

Drawdown Indicators

	SPTL	PDI	Difference
Max Drawdown Largest peak-to-trough decline	-46.20%	-46.47%	+0.27%
Max Drawdown (1Y) Largest decline over 1 year	-7.04%	-10.95%	+3.91%
Max Drawdown (3Y) Largest decline over 3 years	-17.55%	-17.55%	0.00%
Max Drawdown (5Y) Largest decline over 5 years	-41.02%	-27.23%	-13.79%
Max Drawdown (10Y) Largest decline over 10 years	-46.20%	-46.47%	+0.27%
Current Drawdown Current decline from peak	-37.36%	-7.57%	-29.79%
Average Drawdown Average peak-to-trough decline	-14.26%	-6.22%	-8.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.74%	4.98%	-2.24%

Volatility

SPTL vs. PDI - Volatility Comparison

The current volatility for SPDR Portfolio Long Term Treasury ETF (SPTL) is 2.53%, while PIMCO Dynamic Income Fund (PDI) has a volatility of 3.21%. This indicates that SPTL experiences smaller price fluctuations and is considered to be less risky than PDI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPTL	PDI	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.53%	3.21%	-0.68%
Volatility (6M) Calculated over the trailing 6-month period	5.99%	8.14%	-2.15%
Volatility (1Y) Calculated over the trailing 1-year period	8.76%	11.24%	-2.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.61%	15.53%	-0.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.95%	19.05%	-5.10%

Dividends

SPTL vs. PDI - Dividend Comparison

SPTL's dividend yield for the trailing twelve months is around 4.25%, less than PDI's 15.84% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PDI PIMCO Dynamic Income Fund	15.84%	14.94%	14.43%	14.74%	17.84%	10.21%	10.01%	9.45%	10.78%	8.81%	14.79%	18.70%
SPTL SPDR Portfolio Long Term Treasury ETF	4.25%	4.12%	4.03%	3.24%	2.75%	1.68%	1.71%	2.45%	2.69%	2.53%	2.56%	2.60%

Frequently Asked Questions

Can I hold both SPTL and PDI in my portfolio?

SPTL and PDI have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SPTL or PDI?

PDI has higher volatility (3.21%) compared to SPTL (2.53%). In terms of maximum drawdown, SPTL dropped -46.20% vs PDI's -46.47%.

Which has better risk-adjusted returns?

SPTL currently has the higher Sharpe Ratio (0.48 vs 0.17), 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.