SPTU vs. BILZ

Last updated Jun 3, 2026

SPTU (State Street SPDR Portfolio Ultra Short T-Bill ETF) and BILZ (PIMCO Ultra Short Government Active Exchange-Traded Fund) are both Ultrashort Bond funds. SPTU is passively managed, while BILZ is actively managed. At a 0.27 correlation, their price movements are largely independent. SPTU charges 0.05%/yr vs 0.14%/yr for BILZ.

Performance

SPTU vs. BILZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR Portfolio Ultra Short T-Bill ETF (SPTU) and PIMCO Ultra Short Government Active Exchange-Traded Fund (BILZ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with SPTU having a 1.48% return and BILZ slightly lower at 1.46%.

SPTU

• 1D: 0.02%
• 1M: 0.31%
• YTD: 1.48%
• 6M: 1.81%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

BILZ

• 1D: 0.01%
• 1M: 0.29%
• YTD: 1.46%
• 6M: 1.78%
• 1Y: 3.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SPTU vs. BILZ - Yearly Performance Comparison

	2026 (YTD)	2025
SPTU State Street SPDR Portfolio Ultra Short T-Bill ETF	1.48%	0.92%
BILZ PIMCO Ultra Short Government Active Exchange-Traded Fund	1.46%	0.91%

Correlation

The correlation between SPTU and BILZ is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 9, 2025	0.27

Return for Risk

SPTU vs. BILZ — Risk / Return Rank

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

BILZ

BILZ Risk / Return Rank: 100
BILZ Sharpe Ratio Rank: 100
BILZ Sortino Ratio Rank: 100
BILZ Omega Ratio Rank: 100
BILZ Calmar Ratio Rank: 100
BILZ Martin Ratio Rank: 100

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.

SPTU vs. BILZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR Portfolio Ultra Short T-Bill ETF (SPTU) and PIMCO Ultra Short Government Active Exchange-Traded Fund (BILZ). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	SPTU	BILZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	19.22	—
Sharpe Ratio (All Time) Calculated using the full available price history	11.88	10.49	+1.39

Drawdowns

SPTU vs. BILZ - Drawdown Comparison

The maximum SPTU drawdown since its inception was -0.04%, smaller than the maximum BILZ drawdown of -0.52%. Use the drawdown chart below to compare losses from any high point for SPTU and BILZ.

Drawdown Indicators

	SPTU	BILZ	Difference
Max Drawdown Largest peak-to-trough decline	-0.04%	-0.52%	+0.48%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.02%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.00%	-0.01%	+0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.00%	—

Volatility

Volatility by Period

	SPTU	BILZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.07%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.14%	—
Volatility (1Y) Calculated over the trailing 1-year period	0.32%	0.21%	+0.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.32%	0.43%	-0.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.32%	0.43%	-0.11%

SPTU vs. BILZ - Expense Ratio Comparison

SPTU has a 0.05% expense ratio, which is lower than BILZ's 0.14% 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%.

Dividends

SPTU vs. BILZ - Dividend Comparison

SPTU's dividend yield for the trailing twelve months is around 2.36%, less than BILZ's 4.07% yield.

Position	TTM	2025	2024	2023
BILZ PIMCO Ultra Short Government Active Exchange-Traded Fund	4.07%	4.19%	4.95%	2.23%
SPTU State Street SPDR Portfolio Ultra Short T-Bill ETF	2.36%	0.89%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SPTU and BILZ in my portfolio?

SPTU and BILZ have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, SPTU or BILZ?

On fees, SPTU is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, SPTU or BILZ?

SPTU is cheaper with a 0.05% expense ratio, compared with 0.14% for BILZ.

Which ETF pays a higher dividend yield, SPTU or BILZ?

BILZ has the higher dividend yield at 4.07%, compared with 2.36% for SPTU.

What is the main difference between SPTU and BILZ?

They also come from different issuers: State Street and PIMCO. Their fees differ too: 0.05% for SPTU and 0.14% for BILZ.