Which Long-Term Bond ETF Is the Better Buy: iShares' IGLB or Its Treasury Rival TLT?

Sara Appino, The Motley Fool

Tue, June 16, 2026 astatine 10:55 AM CDT 4 min read

The iShares 10+ Year Investment Grade Corporate Bond ETF (NYSEMKT:IGLB) offers little costs and higher yields, portion the iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT) provides pure-play vulnerability to long-dated authorities debt.

Both funds people the agelong extremity of the maturity curve, meaning they are highly delicate to involvement complaint changes. While the iShares 10+ Year Investment Grade Corporate Bond ETF focuses connected the indebtedness of highly rated corporations, the iShares 20+ Year Treasury Bond ETF tracks U.S. authorities obligations. This cardinal quality successful recognition prime influences their humanities show and hazard profiles.

Snapshot (cost & size)

Beta measures terms volatility comparative to the S&P 500; beta is calculated from five-year monthly returns. The 1-yr instrumentality represents full instrumentality implicit the trailing 12 months. Dividend output is the trailing-12-month organisation yield.

The iShares 10+ Year Investment Grade Corporate Bond ETF is the much cost-effective option, carrying an disbursal ratio of 0.04% compared to the 0.15% interest for TLT. The firm absorption of IGLB besides translates into a higher income stream, arsenic the money offers a trailing-12-month dividend output of 5.20% versus the 4.60% output provided by the Treasury-focused fund.

Performance & hazard examination

What's wrong

iShares 20+ Year Treasury Bond ETF is simply a fixed-income money focused connected U.S. authorities indebtedness with maturities exceeding 20 years. Its 46 holdings are concentrated successful long-dated Treasuries. The money was launched successful 2002 and has a trailing-12-month dividend of $3.91 per share. Since it holds government-backed securities, it carries little recognition hazard but higher involvement complaint sensitivity owed to its agelong duration.

The iShares 10+ Year Investment Grade Corporate Bond ETF holds 3,827 investment-grade firm bonds maturing successful much than 10 years. This money is highly diversified, and its largest positions see nary azygous contented exceeding 0.28% of the portfolio. Launched successful 2009, it has a trailing-12-month dividend of $2.62 per share. While some are fixed-income products without equity assemblage breakdowns, the firm absorption of IGLB introduces recognition hazard that is absent successful the government-guaranteed Treasury fund.

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