AGG vs BKAG: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
BNY Mellon · 5070 holdings · $2.2B · as of 2026-04-30
Holdings snapshots are 31 days apart (AGG: 2026-05-31, BKAG: 2026-04-30). 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 AGG and BKAG?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; BNY Mellon Core Bond ETF (BKAG, by BNY Mellon) holds 5070. They have 3721 holdings in common, and by portfolio weight the two funds are 49.7% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 49.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 3721AGG holds 13266 · BKAG holds 5070
- Weight in Shared Holdings
- AGG 62%·BKAG 79%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 AGG
9545 of 13266 positions (36.3% of the fund) are not held by BKAG. Showing the top 30 by weight.
- U.S. Treasury Notes0.20%
- U.S. Treasury Notes0.15%
- Ginnie Mae II Pool0.14%
- Fannie Mae Pool0.13%
- U.S. Treasury Notes0.13%
- Fannie Mae Pool0.13%
Only in BKAG
1349 of 5070 positions (19.8% of the fund) are not held by AGG. Showing the top 30 by weight.
- Fannie Mae Pool0.28%
- Uniform Mortgage-Backed Securities, TBA0.26%
- Uniform Mortgage-Backed Securities, TBA0.23%
- G2-30YR-Multi0.22%
- G2-30YR-Multi0.18%
- FN FS51730.17%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| AGG | -0.3% | +0.0% | +2.4% | +4.2% | -0.2% | +1.4% | 4.04% |
| BKAG | -0.6% | -0.3% | +2.1% | +4.1% | -0.3% | — | 3.94% |
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 AGG vs BKAG →
Shared Holdings(3721)
The top 10 shared positions account for 7% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.42% | 0.47% | 0.42% |
|---|---|---|---|
| U.S. Treasury Notes | 0.41% | 0.56% | 0.41% |
| U.S. Treasury Notes | 0.40% | 0.43% | 0.40% |
| U.S. Treasury Notes | 0.40% | 0.40% | 0.40% |
| U.S. Treasury Notes | 0.38% | 0.44% | 0.38% |
| U.S. Treasury Notes | 0.41% | 0.38% | 0.38% |
| U.S. Treasury Notes/Bonds | 0.37% | 0.60% | 0.37% |
| U.S. Treasury Notes | 0.39% | 0.34% | 0.34% |
| U.S. Treasury Notes | 0.35% | 0.31% | 0.31% |
| U.S. Treasury Notes | 0.31% | 0.40% | 0.31% |
| U.S. Treasury Notes | 0.39% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.32% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.30% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.39% | 0.29% |
| U.S. Treasury Notes | 0.28% | 0.28% | 0.28% |
| U.S. Treasury Notes | 0.39% | 0.27% | 0.27% |
| U.S. Treasury Notes | 0.27% | 0.27% | 0.27% |
| U.S. Treasury Notes | 0.33% | 0.27% | 0.27% |
| U.S. Treasury Notes | 0.26% | 0.28% | 0.26% |
| U.S. Treasury Notes | 0.31% | 0.26% | 0.26% |
| U.S. Treasury Notes | 0.25% | 0.30% | 0.25% |
| U.S. Treasury Notes | 0.25% | 0.25% | 0.25% |
| U.S. Treasury Notes | 0.31% | 0.24% | 0.24% |
| U.S. Treasury Notes | 0.24% | 0.26% | 0.24% |
Showing the top 250 of 3721 shared holdings by overlap weight.
Frequently Asked Questions
How much do AGG and BKAG overlap?
AGG and BKAG overlap by 49.7% of portfolio weight. They share 3721 holdings (AGG holds 13266 positions and BKAG holds 5070), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and BKAG?
The two portfolios are 49.7% 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 AGG and BKAG?
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 7% of the total overlap.
What does AGG own that BKAG doesn't?
9545 positions (36.3% of AGG) are unique to AGG, led by U.S. Treasury Notes, U.S. Treasury Notes and Ginnie Mae II Pool. In the other direction, 1349 positions (19.8% of BKAG) are unique to BKAG.