IGLB vs BLV: Holdings Overlap
IGLBiShares 10+ Year Investment Grade Corporate Bond ETF
iShares · 3835 holdings · $2.9B · as of 2026-05-31
BLVVanguard Long-term Bond Index Fund
Vanguard · 3013 holdings · $5.8B · as of 2026-03-31
Holdings snapshots are 61 days apart (IGLB: 2026-05-31, BLV: 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 IGLB and BLV?
iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB, by iShares) holds 3835 positions; Vanguard Long-term Bond Index Fund (BLV, by Vanguard) holds 3013. They have 2544 holdings in common, and by portfolio weight the two funds are 39.0% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 39.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 2544IGLB holds 3835 · BLV holds 3013
- Weight in Shared Holdings
- IGLB 74%·BLV 41%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 IGLB
1291 of 3835 positions (23.7% of the fund) are not held by BLV. Showing the top 30 by weight.
- Mars Inc0.17%
- Morgan Stanley0.12%
- QatarEnergy0.11%
- Saudi Arabian Oil Co0.10%
- Petronas Capital Ltd0.10%
- QatarEnergy0.10%
Only in BLV
469 of 3013 positions (58.1% of the fund) are not held by IGLB. 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%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IGLB | -1.6% | -1.5% | +0.9% | +4.3% | -2.9% | +1.6% | 5.41% |
| BLV | -1.5% | -1.9% | +0.2% | +2.5% | -4.7% | +0.3% | 4.94% |
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 IGLB vs BLV →
Shared Holdings(2544)
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 Bank of America Corp..
| Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc | 0.28% | 0.16% | 0.16% |
|---|---|---|---|
| CVS Health Corp. | 0.25% | 0.13% | 0.13% |
| Bank of America Corp. | 0.14% | 0.10% | 0.10% |
| Pfizer Investment Enterprises Pte. Ltd. | 0.20% | 0.10% | 0.10% |
| AbbVie, Inc. | 0.16% | 0.10% | 0.10% |
| Boeing Co. (The) | 0.20% | 0.10% | 0.10% |
| AT&T, Inc. | 0.17% | 0.10% | 0.10% |
| Bank of America Corp. | 0.16% | 0.10% | 0.10% |
| Amazon.com, Inc. | 0.18% | 0.09% | 0.09% |
| Meta Platforms, Inc. | 0.16% | 0.09% | 0.09% |
| Wells Fargo & Co. | 0.18% | 0.09% | 0.09% |
| AT&T, Inc. | 0.14% | 0.09% | 0.09% |
| AT&T, Inc. | 0.17% | 0.09% | 0.09% |
| Comcast Corp. | 0.11% | 0.09% | 0.09% |
| Goldman Sachs Group, Inc. (The) | 0.11% | 0.09% | 0.09% |
| AbbVie, Inc. | 0.13% | 0.08% | 0.08% |
| Pfizer Investment Enterprises Pte. Ltd. | 0.14% | 0.08% | 0.08% |
| AT and T INC 3.8% 12/01/2057 | 0.13% | 0.08% | 0.08% |
| Amgen, Inc. | 0.14% | 0.08% | 0.08% |
| Microsoft Corp. | 0.14% | 0.08% | 0.08% |
| Goldman Sachs Group, Inc. (The) | 0.20% | 0.08% | 0.08% |
| Anheuser-Busch InBev Worldwide, Inc. | 0.15% | 0.08% | 0.08% |
| Meta Platforms, Inc. | 0.20% | 0.08% | 0.08% |
| Verizon Communications, Inc. | 0.08% | 0.07% | 0.07% |
| AbbVie, Inc. | 0.11% | 0.07% | 0.07% |
Showing the top 250 of 2544 shared holdings by overlap weight.
Frequently Asked Questions
How much do IGLB and BLV overlap?
IGLB and BLV overlap by 39.0% of portfolio weight. They share 2544 holdings (IGLB holds 3835 positions and BLV holds 3013), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IGLB and BLV?
The two portfolios are 39.0% 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 IGLB and BLV?
The largest positions held by both funds are Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc, CVS Health Corp., Bank of America Corp., Pfizer Investment Enterprises Pte. Ltd. and AbbVie, Inc.. Together the top 10 shared positions account for 3% of the total overlap.
What does IGLB own that BLV doesn't?
1291 positions (23.7% of IGLB) are unique to IGLB, led by Mars Inc, Morgan Stanley and QatarEnergy. In the other direction, 469 positions (58.1% of BLV) are unique to BLV.