LDRT vs. SPTB

Last updated Jun 23, 2026

LDRT (iShares iBonds 1-5 Year Treasury Ladder ETF) and SPTB (State Street SPDR Portfolio Treasury ETF) are both Government Bonds funds - LDRT tracks the BlackRock iBonds® 1-5 Year Treasury Ladder Index while SPTB tracks the Bloomberg U.S. Treasury Index. Both are passively managed. Over the past year, LDRT returned 3.49% vs 3.31% for SPTB. A 0.67 correlation means they provide meaningful diversification when combined. LDRT charges 0.07%/yr vs 0.03%/yr for SPTB.

Performance

LDRT vs. SPTB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds 1-5 Year Treasury Ladder ETF (LDRT) and State Street SPDR Portfolio Treasury ETF (SPTB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LDRT achieves a 0.74% return, which is significantly higher than SPTB's 0.08% return.

LDRT

• 1D: 0.00%
• 1M: 0.16%
• YTD: 0.74%
• 6M: 0.93%
• 1Y: 3.49%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SPTB

• 1D: -0.24%
• 1M: 0.42%
• YTD: 0.08%
• 6M: 0.14%
• 1Y: 3.31%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

LDRT vs. SPTB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
LDRT iShares iBonds 1-5 Year Treasury Ladder ETF	0.74%	5.55%	0.44%
SPTB State Street SPDR Portfolio Treasury ETF	0.08%	6.14%	-0.59%

Correlation

The correlation between LDRT and SPTB is 0.67, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.67
Correlation (All Time) Calculated using the full available price history since Nov 8, 2024	0.67

The correlation between LDRT and SPTB has been stable across timeframes, ranging from 0.67 to 0.67 - a consistent structural relationship.

Return for Risk

LDRT vs. SPTB — Risk / Return Rank

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

LDRT

LDRT Risk / Return Rank: 46
LDRT Sharpe Ratio Rank: 36
LDRT Sortino Ratio Rank: 37
LDRT Omega Ratio Rank: 40
LDRT Calmar Ratio Rank: 66
LDRT Martin Ratio Rank: 50

SPTB

SPTB Risk / Return Rank: 25
SPTB Sharpe Ratio Rank: 27
SPTB Sortino Ratio Rank: 27
SPTB Omega Ratio Rank: 24
SPTB Calmar Ratio Rank: 24
SPTB Martin Ratio Rank: 24

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.

LDRT vs. SPTB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds 1-5 Year Treasury Ladder ETF (LDRT) and State Street SPDR Portfolio Treasury ETF (SPTB). 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.

	LDRT	SPTB	Difference
Sharpe ratio: Return per unit of total volatility	1.26	0.93	+0.32
Sortino ratio: Return per unit of downside risk	1.88	1.42	+0.46
Omega ratio: Gain probability vs. loss probability	1.26	1.16	+0.09
Calmar ratio: Return relative to maximum drawdown	3.15	1.14	+2.00
Martin ratio: Return relative to average drawdown	8.16	3.15	+5.01

LDRT vs. SPTB - Sharpe Ratio Comparison

The current LDRT Sharpe Ratio is 1.26, which is higher than the SPTB Sharpe Ratio of 0.93. The chart below compares the historical Sharpe Ratios of LDRT and SPTB, 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

LDRT vs. SPTB - Drawdown Comparison

The maximum LDRT drawdown since its inception was -1.11%, smaller than the maximum SPTB drawdown of -4.96%. Use the drawdown chart below to compare losses from any high point for LDRT and SPTB.

Drawdown Indicators

	LDRT	SPTB	Difference
Max Drawdown Largest peak-to-trough decline	-1.11%	-4.96%	+3.85%
Max Drawdown (1Y) Largest decline over 1 year	-1.11%	-2.90%	+1.79%
Current Drawdown Current decline from peak	-0.50%	-1.80%	+1.30%
Average Drawdown Average peak-to-trough decline	-0.32%	-1.33%	+1.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.43%	1.05%	-0.62%

Volatility

LDRT vs. SPTB - Volatility Comparison

The current volatility for iShares iBonds 1-5 Year Treasury Ladder ETF (LDRT) is 0.79%, while State Street SPDR Portfolio Treasury ETF (SPTB) has a volatility of 0.95%. This indicates that LDRT experiences smaller price fluctuations and is considered to be less risky than SPTB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LDRT	SPTB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.79%	0.95%	-0.16%
Volatility (6M) Calculated over the trailing 6-month period	1.65%	2.54%	-0.89%
Volatility (1Y) Calculated over the trailing 1-year period	2.80%	3.57%	-0.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.77%	4.40%	-1.63%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.77%	4.40%	-1.63%

LDRT vs. SPTB - Expense Ratio Comparison

LDRT has a 0.07% expense ratio, which is higher than SPTB's 0.03% 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

LDRT vs. SPTB - Dividend Comparison

LDRT's dividend yield for the trailing twelve months is around 4.08%, less than SPTB's 4.19% yield.

Position	TTM	2025	2024
LDRT iShares iBonds 1-5 Year Treasury Ladder ETF	4.08%	3.86%	0.69%
SPTB State Street SPDR Portfolio Treasury ETF	4.19%	4.23%	2.76%

Frequently Asked Questions

Can I hold both LDRT and SPTB in my portfolio?

LDRT and SPTB have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LDRT or SPTB?

SPTB has higher volatility (0.95%) compared to LDRT (0.79%). In terms of maximum drawdown, LDRT dropped -1.11% vs SPTB's -4.96%.

Which ETF is better, LDRT or SPTB?

On 1-year performance, LDRT leads with 3.49% vs 3.31% for SPTB. On fees, SPTB is cheaper at 0.03% per year. On volatility, LDRT has been the lower-risk option at 0.79%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, LDRT or SPTB?

Over the 1-year period, LDRT has performed better with a 3.49% return vs 3.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, LDRT or SPTB?

SPTB is cheaper with a 0.03% expense ratio, compared with 0.07% for LDRT.

Which ETF pays a higher dividend yield, LDRT or SPTB?

SPTB has the higher dividend yield at 4.19%, compared with 4.08% for LDRT.

What is the main difference between LDRT and SPTB?

LDRT tracks BlackRock iBonds® 1-5 Year Treasury Ladder Index, while SPTB tracks Bloomberg U.S. Treasury Index. They also come from different issuers: iShares and State Street. Their fees differ too: 0.07% for LDRT and 0.03% for SPTB.

Which has better risk-adjusted returns?

LDRT currently has the higher Sharpe Ratio (1.26 vs 0.93), 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.