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ILTB vs. VGLT
Performance
Return for Risk
Drawdowns
Volatility
Dividends

ILTB vs. VGLT

Last updated Jun 4, 2026

ILTB (iShares Core 10+ Year USD Bond ETF) and VGLT (Vanguard Long-Term Treasury ETF) are both exchange-traded funds - ILTB is a Long-Term Bond fund tracking the Bloomberg U.S. Universal 10+ Year Index (USD), while VGLT is a Government Bonds fund tracking the Bloomberg U.S. Long Treasury Index. Both are passively managed. Over the past 10 years, ILTB returned 1.32%/yr vs -1.10%/yr for VGLT. Their correlation of 0.86 suggests significant overlap in exposure. ILTB charges 0.06%/yr vs 0.03%/yr for VGLT.

Performance

ILTB vs. VGLT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core 10+ Year USD Bond ETF (ILTB) and Vanguard Long-Term Treasury ETF (VGLT). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, ILTB achieves a 0.30% return, which is significantly higher than VGLT's -0.41% return. Over the past 10 years, ILTB has outperformed VGLT with an annualized return of 1.32%, while VGLT has yielded a comparatively lower -1.10% annualized return.

ILTB

1D
-0.33%
1M
1.04%
YTD
0.30%
6M
-0.71%
1Y
7.17%
3Y*
2.78%
5Y*
-2.88%
10Y*
1.32%

VGLT

1D
-0.40%
1M
0.71%
YTD
-0.41%
6M
-1.68%
1Y
5.25%
3Y*
-0.72%
5Y*
-5.30%
10Y*
-1.10%
*Multi-year figures are annualized to reflect compound growth (CAGR)

ILTB vs. VGLT - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
ILTB
iShares Core 10+ Year USD Bond ETF		0.30%7.22%-3.00%8.04%-26.62%-2.67%16.10%19.61%-5.10%11.24%
VGLT
Vanguard Long-Term Treasury ETF		-0.41%5.35%-6.28%3.27%-29.34%-4.98%17.57%14.30%-1.54%8.64%

Correlation

The correlation between ILTB and VGLT is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

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

0.97

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

0.97

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

0.96

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

0.92

Correlation (All Time)
Calculated using the full available price history since Dec 10, 2009

0.86

The correlation between ILTB and VGLT shifts across timeframes, from 0.86 (all time) to 0.97 (3 years), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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

iShares Core 10+ Year USD Bond ETF

Vanguard Long-Term Treasury ETF

Often compared with ILTB:
ILTB vs. IMTBILTB vs. TLTILTB vs. VCLTILTB vs. BLVILTB vs. IEFILTB vs. DIALILTB vs. BND
Often compared with VGLT:
VGLT vs. TLTVGLT vs. VGITVGLT vs. EDVVGLT vs. BNDVGLT vs. VCLTVGLT vs. BLVVGLT vs. SPTL

Return for Risk

ILTB vs. VGLT — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
ILTB
ILTB Risk / Return Rank: 2525
Overall Rank
ILTB Sharpe Ratio Rank: 2525
Sharpe Ratio Rank
ILTB Sortino Ratio Rank: 2424
Sortino Ratio Rank
ILTB Omega Ratio Rank: 2323
Omega Ratio Rank
ILTB Calmar Ratio Rank: 2727
Calmar Ratio Rank
ILTB Martin Ratio Rank: 2525
Martin Ratio Rank
VGLT
VGLT Risk / Return Rank: 1818
Overall Rank
VGLT Sharpe Ratio Rank: 1818
Sharpe Ratio Rank
VGLT Sortino Ratio Rank: 1717
Sortino Ratio Rank
VGLT Omega Ratio Rank: 1616
Omega Ratio Rank
VGLT Calmar Ratio Rank: 1818
Calmar Ratio Rank
VGLT Martin Ratio Rank: 1818
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.

ILTB vs. VGLT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core 10+ Year USD Bond ETF (ILTB) and Vanguard Long-Term Treasury ETF (VGLT). 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.

ILTBVGLTDifference
Sharpe ratioReturn per unit of total volatility
0.91
0.59

+0.32

Sortino ratioReturn per unit of downside risk
1.34
0.92

+0.43

Omega ratioGain probability vs. loss probability

1.16

1.10

+0.05

Calmar ratioReturn relative to maximum drawdown

1.33

0.75

+0.58

Martin ratioReturn relative to average drawdown

3.38

1.96

+1.41

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

ILTB vs. VGLT - Sharpe Ratio Comparison

The current ILTB Sharpe Ratio is 0.91, which is higher than the VGLT Sharpe Ratio of 0.59. The chart below compares the historical Sharpe Ratios of ILTB and VGLT, 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

ILTBVGLTDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.91

0.59

+0.32

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.23

-0.37

+0.14

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.11

-0.08

+0.19

Sharpe Ratio (All Time)

Calculated using the full available price history

0.35

0.19

+0.16

Drawdowns

ILTB vs. VGLT - Drawdown Comparison

The maximum ILTB drawdown since its inception was -36.88%, smaller than the maximum VGLT drawdown of -46.18%. Use the drawdown chart below to compare losses from any high point for ILTB and VGLT.

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Drawdown Indicators

ILTBVGLTDifference

Max Drawdown

Largest peak-to-trough decline

-36.88%

-46.18%

+9.30%

Max Drawdown (1Y)

Largest decline over 1 year

-5.42%

-7.01%

+1.59%

Max Drawdown (3Y)

Largest decline over 3 years

-14.60%

-17.68%

+3.08%

Max Drawdown (5Y)

Largest decline over 5 years

-35.22%

-40.98%

+5.76%

Max Drawdown (10Y)

Largest decline over 10 years

-36.88%

-46.18%

+9.30%

Current Drawdown

Current decline from peak

-21.28%

-36.83%

+15.55%

Average Drawdown

Average peak-to-trough decline

-9.92%

-15.06%

+5.14%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.13%

2.68%

-0.55%

Volatility

ILTB vs. VGLT - Volatility Comparison

iShares Core 10+ Year USD Bond ETF (ILTB) and Vanguard Long-Term Treasury ETF (VGLT) have volatilities of 2.50% and 2.59%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

ILTBVGLTDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.50%

2.59%

-0.09%

Volatility (6M)

Calculated over the trailing 6-month period

5.54%

5.94%

-0.40%

Volatility (1Y)

Calculated over the trailing 1-year period

7.88%

8.88%

-1.00%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

12.64%

14.58%

-1.94%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

11.56%

13.81%

-2.25%

ILTB vs. VGLT - Expense Ratio Comparison

ILTB has a 0.06% expense ratio, which is higher than VGLT'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

ILTB vs. VGLT - Dividend Comparison

ILTB's dividend yield for the trailing twelve months is around 4.96%, more than VGLT's 4.61% yield.

PositionTTM20252024202320222021202020192018201720162015
ILTB
iShares Core 10+ Year USD Bond ETF		4.96%4.83%4.91%4.38%4.31%3.04%3.32%3.45%4.13%3.97%3.99%4.20%
VGLT
Vanguard Long-Term Treasury ETF		4.61%4.44%4.33%3.33%2.84%1.82%2.15%2.46%2.71%2.55%2.69%3.21%

Frequently Asked Questions

With a correlation of 0.97, ILTB and VGLT move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

VGLT has higher volatility (2.59%) compared to ILTB (2.50%). In terms of maximum drawdown, ILTB dropped -36.88% vs VGLT's -46.18%.

On 10-year performance, ILTB leads with 1.32% vs -1.10% for VGLT. On fees, VGLT is cheaper at 0.03% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, ILTB has performed better with a 1.32% return vs -1.10%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

VGLT is cheaper with a 0.03% expense ratio, compared with 0.06% for ILTB.

ILTB has the higher dividend yield at 4.96%, compared with 4.61% for VGLT.

ILTB is categorized as Long-Term Bond, while VGLT is Government Bonds. ILTB tracks Bloomberg U.S. Universal 10+ Year Index (USD), while VGLT tracks Bloomberg U.S. Long Treasury Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.06% for ILTB and 0.03% for VGLT.

ILTB currently has the higher Sharpe Ratio (0.91 vs 0.59), 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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