BND vs IEF: Holdings Overlap
BNDVanguard Total Bond Market Index Fund
Vanguard · 17360 holdings · $161.4B · as of 2026-03-31
IEFiShares 7-10 Year Treasury Bond ETF
iShares · 15 holdings · $47.3B · as of 2026-05-31
Holdings snapshots are 61 days apart (BND: 2026-03-31, IEF: 2026-05-31). 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 BND and IEF?
Vanguard Total Bond Market Index Fund (BND, by Vanguard) holds 17360 positions; iShares 7-10 Year Treasury Bond ETF (IEF, by iShares) holds 15. They have 14 holdings in common, and by portfolio weight the two funds are 4.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 14BND holds 17360 · IEF holds 15
- Weight in Shared Holdings
- BND 5%·IEF 97%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 BND
17346 of 17360 positions (94.0% of the fund) are not held by IEF. Showing the top 30 by weight.
- U.S. Treasury Notes0.48%
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.36%
- U.S. Treasury Notes0.35%
- U.S. Treasury Notes0.35%
- U.S. Treasury Notes0.35%
Only in IEF
1 of 15 positions (1.5% of the fund) are not held by BND.
- U.S. Treasury Notes1.47%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| BND | -0.3% | +0.0% | +2.4% | +4.2% | -0.2% | +1.5% | 4.03% |
| IEF | -0.2% | -0.9% | +1.3% | +3.1% | -1.6% | +0.5% | 3.95% |
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 BND vs IEF →
Shared Holdings(14)
The top 10 shared positions account for 82% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.42% | 8.31% | 0.42% |
|---|---|---|---|
| U.S. Treasury Notes | 0.42% | 8.63% | 0.42% |
| U.S. Treasury Notes | 0.41% | 8.75% | 0.41% |
| U.S. Treasury Notes | 0.41% | 6.73% | 0.41% |
| U.S. Treasury Notes | 0.40% | 8.78% | 0.40% |
| U.S. Treasury Notes | 0.39% | 8.73% | 0.39% |
| U.S. Treasury Notes | 0.39% | 8.71% | 0.39% |
| U.S. Treasury Notes | 0.36% | 8.22% | 0.36% |
| U.S. Treasury Notes | 0.36% | 5.81% | 0.36% |
| U.S. Treasury Notes | 0.32% | 5.32% | 0.32% |
| U.S. Treasury Notes | 0.32% | 0.30% | 0.30% |
| U.S. Treasury Notes | 0.24% | 8.53% | 0.24% |
| U.S. Treasury Notes | 0.18% | 9.54% | 0.18% |
| U.S. Treasury Notes | 0.13% | 0.38% | 0.13% |
Frequently Asked Questions
How much do BND and IEF overlap?
BND and IEF overlap by 4.8% of portfolio weight. They share 14 holdings (BND holds 17360 positions and IEF holds 15), based on each fund's latest SEC-reported holdings.
Is it redundant to own both BND and IEF?
The two portfolios are 4.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of BND and IEF?
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 82% of the total overlap.
What does BND own that IEF doesn't?
17346 positions (94.0% of BND) are unique to BND, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 1 positions (1.5% of IEF) are unique to IEF.