BLV vs IEF: Holdings Overlap
BLVVanguard Long-term Bond Index Fund
Vanguard · 3013 holdings · $5.8B · 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 (BLV: 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 BLV and IEF?
Vanguard Long-term Bond Index Fund (BLV, by Vanguard) holds 3013 positions; iShares 7-10 Year Treasury Bond ETF (IEF, by iShares) holds 15. They have 1 holdings in common, and by portfolio weight the two funds are 0.5% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1BLV holds 3013 · IEF holds 15
- Weight in Shared Holdings
- BLV 0%·IEF 10%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 BLV
3012 of 3013 positions (98.2% of the fund) are not held by IEF. Showing the top 30 by weight.
- U.S. Treasury Bonds1.23%
- U.S. Treasury Bonds1.21%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.14%
Only in IEF
14 of 15 positions (88.7% of the fund) are not held by BLV.
- U.S. Treasury Notes8.78%
- U.S. Treasury Notes8.75%
- U.S. Treasury Notes8.73%
- U.S. Treasury Notes8.71%
- U.S. Treasury Notes8.63%
- U.S. Treasury Notes8.53%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| BLV | -1.5% | -1.9% | +0.2% | +2.5% | -4.7% | +0.3% | 4.94% |
| 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 BLV vs IEF →
Shared Holdings(1)
| U.S. Treasury Notes | 0.46% | 9.54% | 0.46% |
|---|
Frequently Asked Questions
How much do BLV and IEF overlap?
BLV and IEF overlap by 0.5% of portfolio weight. They share 1 holdings (BLV holds 3013 positions and IEF holds 15), based on each fund's latest SEC-reported holdings.
Is it redundant to own both BLV and IEF?
The two portfolios are 0.5% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of BLV and IEF?
The largest positions held by both funds are U.S. Treasury Notes. Together the top 1 shared positions account for 100% of the total overlap.
What does BLV own that IEF doesn't?
3012 positions (98.2% of BLV) are unique to BLV, led by U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds. In the other direction, 14 positions (88.7% of IEF) are unique to IEF.