AGG vs UCON: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
UCONFirst Trust Smith Unconstrained Bond ETF
First Trust · 504 holdings · $3.3B · as of 2026-05-31
How similar are AGG and UCON?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; First Trust Smith Unconstrained Bond ETF (UCON, by First Trust) holds 504. They have 161 holdings in common, and by portfolio weight the two funds are 1.7% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 161AGG holds 13266 · UCON holds 504
- Weight in Shared Holdings
- AGG 2%·UCON 39%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
13105 of 13266 positions (96.6% of the fund) are not held by UCON. Showing the top 30 by weight.
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.39%
Only in UCON
343 of 504 positions (59.8% of the fund) are not held by AGG. Showing the top 30 by weight.
- FN BM77550.96%
- FNR 2024-82 CF0.73%
- Albertsons Cos Inc / Safeway Inc / New Albertsons LP / Albertsons LLC0.71%
- Jane Street Group / JSG Finance Inc.0.67%
- FN BQ79730.65%
- Amneal Pharmaceuticals LLC0.62%
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% |
| UCON | -0.1% | +0.7% | +3.7% | +5.5% | +2.7% | — | 4.72% |
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 UCON →
Shared Holdings(161)
The top 10 shared positions account for 59% of the overlap, led by U.S. Treasury Notes/Bonds, U.S. Treasury Notes/Bonds and U.S. Treasury Bonds.
| U.S. Treasury Notes/Bonds | 0.26% | 2.33% | 0.26% |
|---|---|---|---|
| U.S. Treasury Notes/Bonds | 0.18% | 1.04% | 0.18% |
| U.S. Treasury Bonds | 0.16% | 2.12% | 0.16% |
| U.S. Treasury Bonds | 0.10% | 0.35% | 0.10% |
| U.S. Treasury Bonds | 0.21% | 0.09% | 0.09% |
| U.S. Treasury Bonds | 0.09% | 2.13% | 0.09% |
| U.S. Treasury Notes | 0.06% | 1.18% | 0.06% |
| Uniform Mortgage-Backed Securities | 0.03% | 0.07% | 0.03% |
| Uniform Mortgage-Backed Securities | 0.02% | 0.21% | 0.02% |
| Goldman Sachs Group, Inc. (The) | 0.02% | 0.18% | 0.02% |
| Amazon.com, Inc. | 0.02% | 0.25% | 0.02% |
| Uniform Mortgage-Backed Securities | 0.02% | 0.48% | 0.02% |
| Oracle Corp. | 0.02% | 0.14% | 0.02% |
| Alphabet, Inc. | 0.01% | 0.08% | 0.01% |
| Uniform Mortgage-Backed Securities | 0.01% | 0.11% | 0.01% |
| Morgan Stanley | 0.01% | 0.08% | 0.01% |
| AerCap Ireland Capital DAC / AerCap Global Aviation Trust | 0.01% | 0.05% | 0.01% |
| Oracle Corp. | 0.01% | 0.15% | 0.01% |
| JPMorgan Chase & Co. | 0.01% | 0.10% | 0.01% |
| Wells Fargo & Co. | 0.01% | 0.24% | 0.01% |
| Goldman Sachs Group, Inc. (The) | 0.01% | 0.16% | 0.01% |
| WELLS FARGO and CO NEW 5.499%/VAR 01/23/2035 | 0.01% | 0.14% | 0.01% |
| Bank of America Corp. | 0.01% | 0.38% | 0.01% |
| Bank of America Corp. | 0.01% | 0.11% | 0.01% |
| U.S. Treasury Notes | 0.06% | 0.01% | 0.01% |
Frequently Asked Questions
How much do AGG and UCON overlap?
AGG and UCON overlap by 1.7% of portfolio weight. They share 161 holdings (AGG holds 13266 positions and UCON holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and UCON?
The two portfolios are 1.7% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of AGG and UCON?
The largest positions held by both funds are U.S. Treasury Notes/Bonds, U.S. Treasury Notes/Bonds, U.S. Treasury Bonds, U.S. Treasury Bonds and U.S. Treasury Bonds. Together the top 10 shared positions account for 59% of the total overlap.
What does AGG own that UCON doesn't?
13105 positions (96.6% of AGG) are unique to AGG, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 343 positions (59.8% of UCON) are unique to UCON.