BIV vs IGSB: Holdings Overlap
BIVVanguard Intermediate-term Bond Index Fund
Vanguard · 2340 holdings · $28.9B · as of 2026-03-31
IGSBiShares 1-5 Year Investment Grade Corporate Bond ETF
iShares · 4605 holdings · $23.2B · as of 2026-05-31
Holdings snapshots are 61 days apart (BIV: 2026-03-31, IGSB: 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 BIV and IGSB?
Vanguard Intermediate-term Bond Index Fund (BIV, by Vanguard) holds 2340 positions; iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB, by iShares) holds 4605. They have 122 holdings in common, and by portfolio weight the two funds are 1.5% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 122BIV holds 2340 · IGSB holds 4605
- Weight in Shared Holdings
- BIV 2%·IGSB 2%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 BIV
2218 of 2340 positions (96.9% of the fund) are not held by IGSB. Showing the top 30 by weight.
- U.S. Treasury Notes2.29%
- U.S. Treasury Notes2.20%
- U.S. Treasury Notes2.19%
- U.S. Treasury Notes2.18%
- U.S. Treasury Notes2.06%
- U.S. Treasury Notes2.06%
Only in IGSB
4483 of 4605 positions (96.9% of the fund) are not held by BIV. Showing the top 30 by weight.
- Eagle Funding Luxco Sarl0.31%
- T-Mobile USA Inc0.18%
- Bank of America Corp0.16%
- AbbVie Inc0.14%
- Amazon.com Inc0.13%
- CVS Health Corp0.13%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| BIV | -0.2% | -0.3% | +2.0% | +4.6% | -0.1% | +1.7% | 4.31% |
| IGSB | +0.3% | +1.2% | +3.5% | +5.6% | +2.5% | +2.7% | 4.61% |
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 BIV vs IGSB →
Shared Holdings(122)
The top 10 shared positions account for 30% of the overlap, led by Bank of America Corp., Goldman Sachs Group, Inc. (The) and Verizon Communications, Inc..
| Bank of America Corp. | 0.08% | 0.11% | 0.08% |
|---|---|---|---|
| Goldman Sachs Group, Inc. (The) | 0.07% | 0.08% | 0.07% |
| Verizon Communications, Inc. | 0.06% | 0.08% | 0.06% |
| Orange SA | 0.05% | 0.06% | 0.05% |
| Oracle Corp. | 0.04% | 0.06% | 0.04% |
| Morgan Stanley | 0.04% | 0.06% | 0.04% |
| JPMorgan Chase & Co. | 0.04% | 0.05% | 0.04% |
| Charter Communications Operating LLC / Charter Communications Operating Capital | 0.03% | 0.04% | 0.03% |
| HCA, Inc. | 0.03% | 0.04% | 0.03% |
| Lowe's Cos., Inc. | 0.03% | 0.04% | 0.03% |
| UnitedHealth Group, Inc. | 0.03% | 0.03% | 0.03% |
| Lowe's Cos., Inc. | 0.03% | 0.03% | 0.03% |
| Humana, Inc. | 0.03% | 0.03% | 0.03% |
| BAT Capital Corp. | 0.03% | 0.03% | 0.03% |
| Coca-Cola Co. (The) | 0.02% | 0.03% | 0.02% |
| American Electric Power Co., Inc., Series C | 0.02% | 0.03% | 0.02% |
| UnitedHealth Group, Inc. | 0.02% | 0.03% | 0.02% |
| Cummins, Inc. | 0.02% | 0.02% | 0.02% |
| Cigna Group (The) | 0.02% | 0.03% | 0.02% |
| CVS Health Corp. | 0.03% | 0.02% | 0.02% |
| AES Corp. (The) | 0.02% | 0.02% | 0.02% |
| Amazon.com, Inc. | 0.04% | 0.02% | 0.02% |
| Ford Motor Credit Co. LLC | 0.02% | 0.02% | 0.02% |
| Exelon Corp. | 0.02% | 0.02% | 0.02% |
| Fifth Third Bancorp | 0.02% | 0.02% | 0.02% |
Frequently Asked Questions
How much do BIV and IGSB overlap?
BIV and IGSB overlap by 1.5% of portfolio weight. They share 122 holdings (BIV holds 2340 positions and IGSB holds 4605), based on each fund's latest SEC-reported holdings.
Is it redundant to own both BIV and IGSB?
The two portfolios are 1.5% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of BIV and IGSB?
The largest positions held by both funds are Bank of America Corp., Goldman Sachs Group, Inc. (The), Verizon Communications, Inc., Orange SA and Oracle Corp.. Together the top 10 shared positions account for 30% of the total overlap.
What does BIV own that IGSB doesn't?
2218 positions (96.9% of BIV) are unique to BIV, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 4483 positions (96.9% of IGSB) are unique to IGSB.