AGG vs CORB
iShares Core US Aggregate Bond ETF vs AB Core Bond ETF
Which is better, AGG or CORB?
AGG has been ahead.
AGG has a lower expense ratio. AGG led over 1Y.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | AGG | CORB |
|---|---|---|
| Expense Ratio | 0.03%Best | 0.28% |
| AUM | $137.6B | $1.2B |
| Dividend Yield | 4.19% | 3.56% |
| Holdings | 13,338 | 727 |
| YTD Return | -2.12%Best | -3.08% |
| 1Y Return | -2.06%Best | -2.96% |
| 3Y Return (annualized) | +4.55% | - |
| 5Y Return (annualized) | -0.53% | - |
| Fund Family | iShares by BlackRock (US) | AllianceBernstein L.P. |
| Category | Fixed Income | Fixed Income |
| Inception | Sep 22, 2003 | Nov 7, 2025 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window, Top 10 Weight, Style.
AGG vs CORB growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
AGG vs CORB Performance
iShares Core US Aggregate Bond ETF (AGG) is an ETF from iShares by BlackRock (US) and AB Core Bond ETF (CORB) is an ETF from AllianceBernstein L.P.. Over the past year AGG returned -2.06% while CORB returned -2.96%. Year to date, AGG is down 2.12% versus a loss of 3.08% for CORB.
Past performance does not guarantee future results.
Fees and Cost Over Time
AGG charges 0.03% per year while CORB charges 0.28%. On a $10,000 position that is $3 vs $28 annually, a gap of $25 per year that compounds over a long holding period. On income, AGG currently yields 4.19% against 3.56% for CORB.
Holdings Overlap
We hold position weights for 11,115 holdings in AGG and 429 in CORB, totalling 67.1% and 81.7% of the two funds. Neither is a share of a fund we can divide by, so no overlap percentage is shown here. Within what we can see, 213 positions appear in both.
213 positions in common, counted across the 11,115 positions we hold weights for in AGG and 429 in CORB, against full books of 13,338 and 727.
Top Shared Holdings
| Stock | Weight in AGG | Weight in CORB | Difference |
|---|---|---|---|
| T 4.625 09/30/28Us Treasury N/B | 0.14% | 2.83% | 2.69% |
| T 4.125 10/31/31Treasury Note (Otr) 4.13% Oct 31, 2031 | 0.11% | 2.81% | 2.70% |
| FNCL 5.5 10/11Fannie Mae Or Freddie Mac 2050-10-01 | 0.20% | 2.54% | 2.34% |
| T 3.125 11/15/28United States Treas Nts 3.125% 11/15/2028 | 0.15% | 2.55% | 2.40% |
| T 3.75 08/31/31United States Treasury Note/Bond - When Issued 3.75% 31Aug2031 | 0.14% | 2.51% | 2.37% |
| FNCL 2 10/13Fncl 2 10/20 Fncl 2 10/20 2.0% 10/01/2050 | 0.10% | 2.28% | 2.18% |
| T 3.625 09/30/31United States Treasury Note/Bond 3.625 09/30/2031 | 0.13% | 2.25% | 2.12% |
| T 4.5 11/15/33United States Treasury Note/Bond 4.50% 11/15/2033 | 0.38% | 1.52% | 1.14% |
| T 4.25 02/28/29United States Treasury Note 2029-02-28 | 0.23% | 1.46% | 1.23% |
| T 4.875 10/31/28U.S. Treasury Notes, 4.875%, 10/31/2028 | 0.15% | 1.52% | 1.37% |
You are not choosing between two funds in isolation.
Whichever of AGG and CORB you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, AGG or CORB?
AGG has an expense ratio of 0.03% while CORB charges 0.28%. AGG is the cheaper option, by $25 a year on a $10,000 investment.
Which performed better, AGG or CORB?
Over the past year AGG returned -2.06% vs -2.96% for CORB, so AGG leads on 1-year performance. Past performance does not guarantee future results. This is information, not a recommendation.
Which pays a higher dividend, AGG or CORB?
AGG yields 4.19% while CORB yields 3.56%, so AGG currently pays the higher dividend yield.
Is CORB better than AGG?
AGG has a lower expense ratio. AGG led over 1Y. Which one suits a particular account depends on what it is for. This is information, not a recommendation.