AGG vs BSV: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
BSVVanguard Short-term Bond Index Fund
Vanguard · 3156 holdings · $45.6B · as of 2026-03-31
Holdings snapshots are 61 days apart (AGG: 2026-05-31, BSV: 2026-03-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are AGG and BSV?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; Vanguard Short-term Bond Index Fund (BSV, by Vanguard) holds 3156. They have 2998 holdings in common, and by portfolio weight the two funds are 33.5% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 33.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 2998AGG holds 13266 · BSV holds 3156
- Weight in Shared Holdings
- AGG 35%·BSV 95%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
10268 of 13266 positions (63.7% of the fund) are not held by BSV. Showing the top 30 by weight.
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.39%
- U.S. Treasury Notes0.39%
Only in BSV
158 of 3156 positions (3.4% of the fund) are not held by AGG. Showing the top 30 by weight.
- U.S. Treasury Notes0.65%
- U.S. Treasury Notes0.55%
- U.S. Treasury Notes0.43%
- U.S. Treasury Notes0.29%
- Federal Home Loan Bank Bonds0.06%
- Morgan Stanley0.05%
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% |
| BSV | +0.3% | +0.7% | +2.7% | +4.5% | +1.7% | +1.9% | 4.03% |
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 BSV →
Shared Holdings(2998)
The top 10 shared positions account for 9% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.41% | 0.92% | 0.41% |
|---|---|---|---|
| U.S. Treasury Notes | 0.35% | 0.39% | 0.35% |
| U.S. Treasury Notes | 0.33% | 0.68% | 0.33% |
| U.S. Treasury Notes | 0.31% | 0.80% | 0.31% |
| U.S. Treasury Notes | 0.31% | 1.16% | 0.31% |
| U.S. Treasury Notes | 0.30% | 0.60% | 0.30% |
| U.S. Treasury Notes | 0.29% | 0.49% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.79% | 0.29% |
| U.S. Treasury Notes | 0.28% | 0.45% | 0.28% |
| U.S. Treasury Notes | 0.27% | 0.63% | 0.27% |
| U.S. Treasury Notes | 0.26% | 0.59% | 0.26% |
| U.S. Treasury Notes | 0.26% | 0.63% | 0.26% |
| U.S. Treasury Notes | 0.25% | 0.76% | 0.25% |
| U.S. Treasury Notes | 0.25% | 0.91% | 0.25% |
| U.S. Treasury Notes | 0.25% | 0.75% | 0.25% |
| U.S. Treasury Notes | 0.24% | 0.56% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.75% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.47% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.73% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.62% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.56% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.65% | 0.24% |
| U.S. Treasury Notes | 0.31% | 0.23% | 0.23% |
| U.S. Treasury Notes | 0.23% | 0.54% | 0.23% |
| U.S. Treasury Notes | 0.23% | 0.74% | 0.23% |
Showing the top 250 of 2998 shared holdings by overlap weight.
Frequently Asked Questions
How much do AGG and BSV overlap?
AGG and BSV overlap by 33.5% of portfolio weight. They share 2998 holdings (AGG holds 13266 positions and BSV holds 3156), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and BSV?
The two portfolios are 33.5% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of AGG and BSV?
The largest positions held by both funds are U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. Together the top 10 shared positions account for 9% of the total overlap.
What does AGG own that BSV doesn't?
10268 positions (63.7% 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, 158 positions (3.4% of BSV) are unique to BSV.