BLV vs USIG: Holdings Overlap
BLVVanguard Long-term Bond Index Fund
Vanguard · 3013 holdings · $5.8B · as of 2026-03-31
USIGiShares Broad USD Investment Grade Corporate Bond ETF
iShares · 11458 holdings · $17.3B · as of 2026-05-31
Holdings snapshots are 61 days apart (BLV: 2026-03-31, USIG: 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 USIG?
Vanguard Long-term Bond Index Fund (BLV, by Vanguard) holds 3013 positions; iShares Broad USD Investment Grade Corporate Bond ETF (USIG, by iShares) holds 11458. They have 2576 holdings in common, and by portfolio weight the two funds are 21.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 21.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 2576BLV holds 3013 · USIG holds 11458
- Weight in Shared Holdings
- BLV 41%·USIG 23%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
437 of 3013 positions (57.7% of the fund) are not held by USIG. 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 USIG
8882 of 11458 positions (76.3% of the fund) are not held by BLV. Showing the top 30 by weight.
- Bank of America Corp0.09%
- Eagle Funding Luxco Sarl0.08%
- T-Mobile USA Inc0.07%
- Goldman Sachs Group Inc/The0.07%
- Goldman Sachs Group Inc/The0.06%
- CVS Health Corp0.06%
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% |
| USIG | -0.4% | +0.1% | +2.6% | +5.4% | +0.2% | +2.4% | 4.82% |
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 USIG →
Shared Holdings(2576)
The top 10 shared positions account for 3% of the overlap, led by Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc, CVS Health Corp. and Meta Platforms, Inc..
| Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc | 0.16% | 0.09% | 0.09% |
|---|---|---|---|
| CVS Health Corp. | 0.13% | 0.08% | 0.08% |
| Meta Platforms, Inc. | 0.09% | 0.06% | 0.06% |
| Goldman Sachs Group, Inc. (The) | 0.08% | 0.06% | 0.06% |
| Pfizer Investment Enterprises Pte. Ltd. | 0.10% | 0.06% | 0.06% |
| Boeing Co. (The) | 0.10% | 0.06% | 0.06% |
| AT&T, Inc. | 0.10% | 0.06% | 0.06% |
| Wells Fargo & Co. | 0.09% | 0.06% | 0.06% |
| CVS Health Corp. | 0.07% | 0.05% | 0.05% |
| AT&T, Inc. | 0.09% | 0.05% | 0.05% |
| Bank of America Corp. | 0.10% | 0.05% | 0.05% |
| AbbVie, Inc. | 0.10% | 0.05% | 0.05% |
| Meta Platforms, Inc. | 0.08% | 0.05% | 0.05% |
| Goldman Sachs Group, Inc. (The) | 0.05% | 0.06% | 0.05% |
| Meta Platforms, Inc. | 0.07% | 0.04% | 0.04% |
| Oracle Corp. | 0.05% | 0.04% | 0.04% |
| Amgen, Inc. | 0.08% | 0.04% | 0.04% |
| AT&T, Inc. | 0.09% | 0.04% | 0.04% |
| Oracle Corp. | 0.07% | 0.04% | 0.04% |
| Salesforce, Inc. | 0.04% | 0.04% | 0.04% |
| Anheuser-Busch InBev Worldwide, Inc. | 0.08% | 0.04% | 0.04% |
| Microsoft Corp. | 0.08% | 0.04% | 0.04% |
| Pfizer Investment Enterprises Pte. Ltd. | 0.08% | 0.04% | 0.04% |
| Alphabet, Inc. | 0.07% | 0.04% | 0.04% |
| AT and T INC 3.8% 12/01/2057 | 0.08% | 0.04% | 0.04% |
Showing the top 250 of 2576 shared holdings by overlap weight.
Frequently Asked Questions
How much do BLV and USIG overlap?
BLV and USIG overlap by 21.4% of portfolio weight. They share 2576 holdings (BLV holds 3013 positions and USIG holds 11458), based on each fund's latest SEC-reported holdings.
Is it redundant to own both BLV and USIG?
The two portfolios are 21.4% 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 BLV and USIG?
The largest positions held by both funds are Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc, CVS Health Corp., Meta Platforms, Inc., Goldman Sachs Group, Inc. (The) and Pfizer Investment Enterprises Pte. Ltd.. Together the top 10 shared positions account for 3% of the total overlap.
What does BLV own that USIG doesn't?
437 positions (57.7% 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, 8882 positions (76.3% of USIG) are unique to USIG.