IGLB vs. VLCIX

Last updated Apr 1, 2026

Compare and contrast key facts about iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) and Vanguard Long-Term Corporate Bond Index Fund Institutional Shares (VLCIX).

IGLB is a passively managed fund by iShares that tracks the performance of the ICE BofAML10+ Year US Corporate Index. It was launched on Dec 8, 2009. VLCIX is managed by Vanguard. It was launched on Nov 19, 2009.

Performance

IGLB vs. VLCIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) and Vanguard Long-Term Corporate Bond Index Fund Institutional Shares (VLCIX). The values are adjusted to include any dividend payments, if applicable.

IGLB vs. VLCIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF	-0.77%	7.53%	-1.50%	11.03%	-25.38%	-1.68%	13.30%	23.19%	-6.90%	12.15%
VLCIX Vanguard Long-Term Corporate Bond Index Fund Institutional Shares	-1.44%	7.27%	-1.43%	11.06%	-25.75%	-1.24%	13.74%	23.18%	-6.86%	12.42%

Returns By Period

In the year-to-date period, IGLB achieves a -0.77% return, which is significantly higher than VLCIX's -1.44% return. Both investments have delivered pretty close results over the past 10 years, with IGLB having a 2.45% annualized return and VLCIX not far ahead at 2.53%.

IGLB

• 1D: 0.73%
• 1M: -3.01%
• YTD: -0.77%
• 6M: -1.22%
• 1Y: 4.05%
• 3Y*: 3.25%
• 5Y*: -1.62%
• 10Y*: 2.45%

VLCIX

• 1D: 1.02%
• 1M: -3.68%
• YTD: -1.44%
• 6M: -1.91%
• 1Y: 3.21%
• 3Y*: 3.04%
• 5Y*: -1.43%
• 10Y*: 2.53%

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

IGLB vs. VLCIX - Expense Ratio Comparison

IGLB has a 0.06% expense ratio, which is higher than VLCIX's 0.05% 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%.

IGLB

iShares 10+ Year Investment Grade Corporate Bond ETF

VLCIX

Vanguard Long-Term Corporate Bond Index Fund Institutional Shares

Return for Risk

IGLB vs. VLCIX — Risk / Return Rank

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

IGLB

IGLB Risk / Return Rank: 27
IGLB Sharpe Ratio Rank: 26
IGLB Sortino Ratio Rank: 23
IGLB Omega Ratio Rank: 23
IGLB Calmar Ratio Rank: 35
IGLB Martin Ratio Rank: 27

VLCIX

VLCIX Risk / Return Rank: 18
VLCIX Sharpe Ratio Rank: 16
VLCIX Sortino Ratio Rank: 14
VLCIX Omega Ratio Rank: 13
VLCIX Calmar Ratio Rank: 31
VLCIX Martin Ratio Rank: 19

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.

IGLB vs. VLCIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) and Vanguard Long-Term Corporate Bond Index Fund Institutional Shares (VLCIX). 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.

	IGLB	VLCIX	Difference
Sharpe ratio Return per unit of total volatility	0.41	0.42	-0.01
Sortino ratio Return per unit of downside risk	0.61	0.62	-0.01
Omega ratio Gain probability vs. loss probability	1.08	1.08	0.00
Calmar ratio Return relative to maximum drawdown	0.83	0.86	-0.03
Martin ratio Return relative to average drawdown	1.97	2.01	-0.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IGLB vs. VLCIX - Sharpe Ratio Comparison

The current IGLB Sharpe Ratio is 0.41, which is comparable to the VLCIX Sharpe Ratio of 0.42. The chart below compares the historical Sharpe Ratios of IGLB and VLCIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	IGLB	VLCIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.41	0.42	-0.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.13	-0.12	-0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.20	0.24	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.37	0.43	-0.06

Correlation

The correlation between IGLB and VLCIX is 0.87, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

IGLB vs. VLCIX - Dividend Comparison

IGLB's dividend yield for the trailing twelve months is around 5.25%, more than VLCIX's 5.17% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IGLB iShares 10+ Year Investment Grade Corporate Bond ETF	5.25%	5.14%	5.10%	4.59%	4.56%	3.16%	3.22%	3.73%	4.56%	3.94%	4.21%	4.58%
VLCIX Vanguard Long-Term Corporate Bond Index Fund Institutional Shares	5.17%	5.50%	5.60%	4.67%	4.43%	2.95%	3.17%	3.83%	4.58%	4.03%	4.39%	4.73%

Drawdowns

IGLB vs. VLCIX - Drawdown Comparison

The maximum IGLB drawdown since its inception was -34.12%, roughly equal to the maximum VLCIX drawdown of -34.56%. Use the drawdown chart below to compare losses from any high point for IGLB and VLCIX.

Drawdown Indicators

	IGLB	VLCIX	Difference
Max Drawdown Largest peak-to-trough decline	-34.12%	-34.56%	+0.44%
Max Drawdown (1Y) Largest decline over 1 year	-5.41%	-5.26%	-0.15%
Max Drawdown (5Y) Largest decline over 5 years	-34.12%	-34.56%	+0.44%
Max Drawdown (10Y) Largest decline over 10 years	-34.12%	-34.56%	+0.44%
Current Drawdown Current decline from peak	-15.08%	-16.02%	+0.94%
Average Drawdown Average peak-to-trough decline	-8.04%	-7.96%	-0.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.27%	2.25%	+0.02%

Volatility

IGLB vs. VLCIX - Volatility Comparison

iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) has a higher volatility of 3.94% compared to Vanguard Long-Term Corporate Bond Index Fund Institutional Shares (VLCIX) at 3.46%. This indicates that IGLB's price experiences larger fluctuations and is considered to be riskier than VLCIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IGLB	VLCIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.94%	3.46%	+0.48%
Volatility (6M) Calculated over the trailing 6-month period	5.53%	5.26%	+0.27%
Volatility (1Y) Calculated over the trailing 1-year period	9.95%	8.93%	+1.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.42%	11.88%	+0.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.53%	10.60%	+1.93%