AGG vs BIV
iShares Core U.S. Aggregate Bond ETF against Vanguard Intermediate-Term Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
18%
2339 shared positions
Fee gap
0 bp
same fee
1-year return gap
1.0 pts
AGG is ahead
Larger fund
AGG
$138.4B
Side by side
| AGG | BIV | |
|---|---|---|
| Fund | iShares Core U.S. Aggregate Bond ETF | Vanguard Intermediate-Term Bond ETF |
| Issuer | iShares | Vanguard |
| Category | Core Bond | Core Bond |
| Expense ratio | 0.03% | 0.03% |
| Assets | $138.4B | $28.3B |
| Average daily dollar volume | $1.2B | $164M |
| Listed | Sep 22, 2003 | Apr 3, 2007 |
| FrenzyCap score | 99 | 99 |
| 1-month return | −1.0% | −1.1% |
| 3-month return | −2.4% | −2.9% |
| Year to date | −4.6% | −5.7% |
| 1-year return | −5.6% | −6.6% |
| 30-day volatility | 5.1% | 5.3% |
| Worst drawdown, 1 year | −7.2% | −8.2% |
| Trailing 12-month yield | 4.16% | 4.49% |
| Holdings | 13,446 | 2,381 |
| Top 10 weight | 3.9% | 20.6% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | −$734M thru May 2026 | +$778M thru Jun 2026 |
| 30-day implied volatility | 12.1% | 6.1% |
| Holdings as of | as of Oct 19, 2026issuer data | as of Sep 30, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
18% of AGG · 99% of BIV| Holding | AGG | BIV |
|---|---|---|
| TREASURY NOTE 4.63%, due Feb 15, 2035 | 0.40% | 2.09% |
| TREASURY NOTE (OLD) 4.38%, due May 15, 2036 | 0.40% | 2.06% |
| TREASURY NOTE 4.25%, due Nov 15, 2034 | 0.40% | 2.07% |
| TREASURY NOTE 4.38%, due May 15, 2034 | 0.39% | 2.11% |
| TREASURY NOTE 4.25%, due May 15, 2035 | 0.39% | 2.04% |
| TREASURY NOTE 3.88%, due Aug 15, 2034 | 0.38% | 2.00% |
| TREASURY NOTE (2OLD), due Feb 15, 2036 | 0.38% | 2.05% |
| TREASURY NOTE 4.5%, due Nov 15, 2033 | 0.38% | 2.03% |
| TREASURY NOTE 4.25%, due Aug 15, 2035 | 0.38% | 2.03% |
| TREASURY NOTE 4%, due Nov 15, 2035 | 0.38% | 2.03% |
| TREASURY NOTE 4%, due Feb 15, 2034 | 0.37% | 2.13% |
| TREASURY NOTE 3.88%, due Aug 15, 2033 | 0.33% | 1.84% |
| TREASURY NOTE 2.88%, due May 15, 2032 | 0.32% | 1.66% |
| TREASURY NOTE 1.38%, due Nov 15, 2031 | 0.31% | 1.43% |
| TREASURY NOTE 3.38%, due May 15, 2033 | 0.31% | 1.64% |
| TREASURY NOTE 3.5%, due Feb 15, 2033 | 0.30% | 1.66% |
| TREASURY NOTE 1.88%, due Feb 15, 2032 | 0.28% | 1.64% |
| TREASURY NOTE 4.13%, due Nov 15, 2032 | 0.28% | 1.74% |
| TREASURY NOTE 2.75%, due Aug 15, 2032 | 0.26% | 1.57% |
| TREASURY NOTE (OTR) 4.63%, due Aug 15, 2036 | 0.23% | 1.63% |
| TREASURY NOTE 4.5%, due Dec 31, 2031 | 0.16% | 0.77% |
| TREASURY NOTE 4%, due Jul 31, 2032 | 0.16% | 0.75% |
| TREASURY NOTE 3.75%, due Nov 30, 2032 | 0.16% | 0.97% |
| TREASURY NOTE 4.25%, due May 31, 2033 | 0.16% | 0.93% |
| TREASURY NOTE 3.88%, due Aug 31, 2032 | 0.16% | 0.88% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · AGG holdings · BIV holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.