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AGG vs TLT: Performance & Backtest Comparison
TLT delivered the higher return - 2.96% CAGR vs 1.54% - over 2005-03-31 → 2026-07-31.
Growth comparison
Drawdown
Annual returns
| AGG | TLT | |
|---|---|---|
| Name | iShares Core U.S. Aggregate Bond ETF | iShares 20+ Year Treasury Bond ETF |
| CAGR | 1.54% | 2.96% |
| Total return | 38.77% | 86.73% |
| Volatility | 4.47% | 13.62% |
| Max drawdown | -20.55%Oct 2023 | -48.92%Oct 2023 |
| Sharpe | -0.02 | 0.16 |
| Sortino | -0.02 | 0.27 |
| Best year | 8.45% | 33.96% |
| Worst year | -14.64% | -31.87% |
| Final balance | $13,877 | $18,673 |
Correlation of monthly returns: 0.83. Wondering if you need both? Check their fund overlap →
All figures are total returns: every dividend and distribution is reinvested on its ex-date, and prices are split-adjusted. See the methodology.
Frequently asked questions
Which has performed better, AGG or TLT?
Over 2005-03-31 to 2026-07-31, TLT performed better: 2.96% annualized versus 1.54% for AGG, with dividends reinvested. Past performance does not guarantee future results.
How similar are AGG and TLT?
Their monthly returns have a correlation of 0.83 over the common period. AGG is iShares Core U.S. Aggregate Bond ETF; TLT is iShares 20+ Year Treasury Bond ETF.
Which is riskier, AGG or TLT?
Over the common period AGG had 4.47% annualized volatility and a -20.55% max drawdown, versus 13.62% and -48.92% for TLT.