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AGG vs VGLT: Performance & Backtest Comparison
VGLT delivered the higher return - 2.49% CAGR vs 1.86% - over 2010-02-28 → 2026-07-31.
Growth comparison
Drawdown
Annual returns
| AGG | VGLT | |
|---|---|---|
| Name | iShares Core U.S. Aggregate Bond ETF | Vanguard Long-Term Treasury ETF |
| CAGR | 1.86% | 2.49% |
| Total return | 35.54% | 50.01% |
| Volatility | 4.42% | 12.37% |
| Max drawdown | -20.55%Oct 2023 | -46.61%Oct 2023 |
| Sharpe | 0.12 | 0.14 |
| Sortino | 0.15 | 0.26 |
| Best year | 8.45% | 29.16% |
| Worst year | -14.64% | -29.85% |
| Final balance | $13,554 | $15,001 |
Correlation of monthly returns: 0.86. 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 VGLT?
Over 2010-02-28 to 2026-07-31, VGLT performed better: 2.49% annualized versus 1.86% for AGG, with dividends reinvested. Past performance does not guarantee future results.
How similar are AGG and VGLT?
Their monthly returns have a correlation of 0.86 over the common period. AGG is iShares Core U.S. Aggregate Bond ETF; VGLT is Vanguard Long-Term Treasury ETF.
Which is riskier, AGG or VGLT?
Over the common period AGG had 4.42% annualized volatility and a -20.55% max drawdown, versus 12.37% and -46.61% for VGLT.