AGG vs VGLT: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
VGLTVanguard Long-term Treasury Index Fund
Vanguard · 97 holdings · $10.4B · as of 2026-05-31
How similar are AGG and VGLT?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; Vanguard Long-term Treasury Index Fund (VGLT, by Vanguard) holds 97. They have 97 holdings in common, and by portfolio weight the two funds are 9.3% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 9.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 97AGG holds 13266 · VGLT holds 97
- Weight in Shared Holdings
- AGG 9%·VGLT 98%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in AGG
13169 of 13266 positions (89.2% of the fund) are not held by VGLT. Showing the top 30 by weight.
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.39%
Only in VGLT
Every position in VGLT is also held by AGG, so it brings nothing the other fund doesn’t already own.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| AGG | -0.3% | +0.0% | +2.4% | +4.2% | -0.2% | +1.4% | 4.04% |
| VGLT | -1.5% | -2.3% | -0.6% | +0.5% | -6.7% | -1.7% | 4.76% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in AGG vs VGLT →
Shared Holdings(97)
The top 10 shared positions account for 22% of the overlap, led by U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds.
| U.S. Treasury Bonds | 0.21% | 2.14% | 0.21% |
|---|---|---|---|
| U.S. Treasury Bonds | 0.21% | 2.21% | 0.21% |
| U.S. Treasury Bonds | 0.21% | 2.21% | 0.21% |
| U.S. Treasury Bonds | 0.21% | 2.17% | 0.21% |
| U.S. Treasury Bonds | 0.21% | 2.17% | 0.21% |
| U.S. Treasury Bonds | 0.20% | 2.13% | 0.20% |
| U.S. Treasury Bonds | 0.20% | 2.04% | 0.20% |
| U.S. Treasury Bonds | 0.20% | 2.04% | 0.20% |
| U.S. Treasury Bonds | 0.18% | 1.83% | 0.18% |
| U.S. Treasury Bonds | 0.18% | 1.64% | 0.18% |
| U.S. Treasury Bonds | 0.18% | 2.17% | 0.18% |
| U.S. Treasury Bonds | 0.17% | 1.53% | 0.17% |
| U.S. Treasury Bonds | 0.16% | 2.22% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.40% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.54% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.35% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.41% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.51% | 0.16% |
| U.S. Treasury Bonds | 0.16% | 1.50% | 0.16% |
| U.S. Treasury Bonds | 0.15% | 1.36% | 0.15% |
| U.S. Treasury Bonds | 0.15% | 1.35% | 0.15% |
| U.S. Treasury Bonds | 0.15% | 1.40% | 0.15% |
| U.S. Treasury Bonds | 0.15% | 1.37% | 0.15% |
| U.S. Treasury Bonds | 0.15% | 1.40% | 0.15% |
| U.S. Treasury Bonds | 0.15% | 1.25% | 0.15% |
Frequently Asked Questions
How much do AGG and VGLT overlap?
AGG and VGLT overlap by 9.3% of portfolio weight. They share 97 holdings (AGG holds 13266 positions and VGLT holds 97), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and VGLT?
The two portfolios are 9.3% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of AGG and VGLT?
The largest positions held by both funds are U.S. Treasury Bonds, U.S. Treasury Bonds, U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds. Together the top 10 shared positions account for 22% of the total overlap.
What does AGG own that VGLT doesn't?
13169 positions (89.2% of AGG) are unique to AGG, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 0 positions (0.0% of VGLT) are unique to VGLT.