IUSB vs SYSB
iShares Trust iShares Core Universal USD Bond ETF against iShares Systematic Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
9%
752 shared positions
Fee gap
19 bp
IUSB is cheaper
1-year return gap
0.9 pts
IUSB is ahead
Larger fund
IUSB
$49.3B
Side by side
| IUSB | SYSB | |
|---|---|---|
| Fund | iShares Trust iShares Core Universal USD Bond ETF | iShares Systematic Bond ETF |
| Issuer | iShares | iShares |
| Category | Core Bond | Core Bond |
| Expense ratio | 0.06% | 0.25% |
| Assets | $49.3B | $1.4B |
| Average daily dollar volume | $474M | $13M |
| Listed | Jun 10, 2014 | Feb 24, 2015 |
| FrenzyCap score | 96 | 72 |
| 1-month return | −1.1% | −1.4% |
| 3-month return | −2.2% | −2.7% |
| Year to date | −4.5% | −5.5% |
| 1-year return | −5.6% | −6.5% |
| 30-day volatility | 4.8% | 5.2% |
| Worst drawdown, 1 year | −7.0% | −8.0% |
| Trailing 12-month yield | 4.37% | 4.66% |
| Holdings | 18,285 | 857 |
| Top 10 weight | 3.8% | 20.7% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | +$7.2B thru Jul 2026 | +$172M thru Jul 2026 |
| 30-day implied volatility | 7.0% | — |
| Holdings as of | as of Oct 20, 2026issuer data | as of Oct 20, 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
10% of IUSB · 90% of SYSB| Holding | IUSB | SYSB |
|---|---|---|
| TREASURY NOTE 4%, due Nov 15, 2035 | 0.42% | 2.62% |
| TREASURY NOTE (2OLD), due Feb 15, 2036 | 0.36% | 2.02% |
| UMBS 15YR TBA(REG B), due Nov 17, 2026 | 0.35% | 0.81% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.31% | 0.55% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.28% | 0.59% |
| TREASURY NOTE 3.88%, due Mar 31, 2031 | 0.24% | 2.21% |
| TREASURY NOTE (OTR) 4.63%, due Aug 15, 2036 | 0.23% | 0.92% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.23% | 0.72% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.21% | 0.33% |
| TREASURY NOTE 3.5%, due Feb 28, 2031 | 0.21% | 1.62% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.19% | 0.35% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.18% | 0.26% |
| TREASURY BOND 2%, due Nov 15, 2041 | 0.16% | 0.83% |
| TREASURY NOTE 1.88%, due Feb 28, 2029 | 0.16% | 0.69% |
| TREASURY BOND 3.63%, due May 15, 2053 | 0.15% | 0.18% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.17% | 0.15% |
| TREASURY BOND 1.75%, due Aug 15, 2041 | 0.15% | 1.66% |
| TREASURY NOTE (2OLD), due Jul 31, 2033 | 0.15% | 1.76% |
| GNMA2 30YR TBA, due Nov 19, 2026 | 0.20% | 0.15% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.14% | 0.33% |
| TREASURY BOND 3%, due Aug 15, 2052 | 0.14% | 1.77% |
| TREASURY BOND 1.88%, due Nov 15, 2051 | 0.14% | 1.73% |
| TREASURY BOND 2.25%, due Feb 15, 2052 | 0.13% | 0.79% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.13% | 0.18% |
| TREASURY BOND 2%, due Aug 15, 2051 | 0.13% | 1.12% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · IUSB holdings · SYSB 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.