VGMSvsIUSBETF Comparison
VS
Vanguard Multi-Sector Income Bond ETF (VGMS) belongs to the Intl Aggregate Bonds segment. iShares Core Total USD Bond Market ETF (IUSB) is part of the US Aggregate Bonds segment. VGMS's top 3 sector exposures are Finance, Sovereign and Industrials. In contrast, IUSB's top sector exposures are Sovereign, Finance and Industrials. VGMS is more expensive with a Total Expense Ratio (TER) of 0.3%, versus 0.06% for IUSB. VGMS is up 1.2% year-to-date (YTD) with +$106M in YTD flows. IUSB performs worse with 0.01% YTD performance, and +$10.31B in YTD flows. Run a side-by-side ETF comparison of VGMS and IUSB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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VGMS vs IUSB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | VGMS IUSB | +0.29%+0.42% | +0.36%-0.49% | +1.20%+0.01% | +3.54%+2.43% | n/a+14.35% | n/a+0.41% |
| Flows | VGMS IUSB | +$22M+$769M | +$51M+$4.70B | +$106M+$10.31B | +$175M+$10.61B | -+$21.90B | -+$31.59B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | VGMS IUSB | +2.38%+3.70% | +2.49%+3.48% | n/a+4.72% | n/a+5.53% |
| Max drawdown | VGMS IUSB | -0.88%-1.61% | -2.20%-2.51% | n/a-4.51% | n/a-17.91% |
| Max drawdown duration | VGMS IUSB | 37d63d | 49d183d | n/a88d | n/a1492d |
Trading data
VGMS | IUSB | |
Last sale 9/1/2026 at 1:30 PM | $50.62 | $45.15 |
| Previous close 09/01/2026 | $50.97 | $45.45 |
| Consolidated volume 09/01/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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VGMS
is actively managed and doesn’t replicate an indexVGMS | IUSB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/1/2026 at 1:30 PM
Live
Closed
VGMS | IUSB | |
|---|---|---|
| Last price | $50.62 | $45.15 |
| 1D performance | -0.68% | -0.66% |
| AuM | $270.79 M | $43.79 B |
| E/R | 0.3% | 0.06% |
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Exposure
Countries
VGMS
USA
60.62%
Other
39.38%
IUSB
USA
73.5%
Other
26.5%
Sectors
VGMS
Finance
17.88%
Sovereign
12.95%
Industrials
8.43%
Other
60.75%
IUSB
Sovereign
43.13%
Finance
13.46%
Other
43.41%
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Diversification
VGMS
Total weight of top 15 holdings out of 15
8.6%
IUSB
Total weight of top 15 holdings out of 15
9.25%
Top 15 holdings
Data as of July 31, 2026
VGMS
USA, Notes 3.5% 31jan2028, USD (U-2028)
0.92%
USA, Notes 4.125% 15jun2029, USD (AP-2029)
0.76%
USA, Notes 4.25% 30jun2029, USD (AA-2029)
0.71%
NVIDIA, 4.35% 15jun2029, USD
0.67%
Pemex, 8.75% 2jun2029, USD
0.63%
USA, Notes 4.25% 15jan2028, USD (AJ-2028)
0.58%
Foundry JV Holdco, 5.9% 25jan2033, USD
0.55%
Philippines, 5.325% 24jun2036, USD
0.51%
Bank of America Corporation, 4.695% 23apr2032, USD (N)
0.50%
Dominican Republic, 7.05% 3feb2031, USD
0.49%
Takeoff Merger Sub, 4.5% 24mar2029, USD
0.47%
TransDigm, 6.375% 31may2033, USD
0.47%
Capital One Financial, 4.722% 30jan2032, USD
0.46%
Saudi Arabia, 5.875% 12jan2056, USD
0.45%
USA, Notes 4% 31oct2029, USD (R-2029)
0.44%
IUSB
BlackRock Liquidity TempCash
4.35%
US01F0206874
0.42%
USA, Notes 4.375% 31dec2029, USD (AH-2029)
0.38%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.37%
USA, Notes 4% 15feb2034, USD (B-2034)
0.37%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.35%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.35%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.34%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.34%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.34%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.34%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.33%
USA, Notes 2.75% 15aug2032, USD (E-2032)
0.33%
USA, Notes 4% 15nov2035, USD (F-2035)
0.33%
US01F0426811
0.31%
Frequently asked questions about VGMS and IUSB
How have the VGMS and IUSB ETFs performed in 2026?
As of September 1, 2026, VGMS is up 1.2% year-to-date (YTD), while IUSB has returned 0.01%. That puts VGMS better performer ahead so far this year.
Which ETF is attracting more investor money: VGMS or IUSB?
Year-to-date, the VGMS ETF saw +$106M in flows, compared to +$10.31B for IUSB.
Which ETF is more volatile: VGMS or IUSB?
Over the past year, VGMS had a volatility of 2.49%, while IUSB experienced 3.48%.
Which ETF is bigger: VGMS or IUSB?
As of September 1, 2026, VGMS holds $270.79 M in assets under management (AUM), while IUSB manages $43.79 B.
What sectors do the VGMS and IUSB ETFs invest in?
VGMS leans toward sectors like Finance, Sovereign and Industrials. Meanwhile, IUSB focuses on Sovereign and Finance.
What are the top holdings of the VGMS ETF and IUSB ETF?
VGMS top holdings include USA, Notes 3.5% 31jan2028, USD (U-2028), USA, Notes 4.125% 15jun2029, USD (AP-2029) and USA, Notes 4.25% 30jun2029, USD (AA-2029). IUSB holds in its top three: BlackRock Liquidity TempCash, US01F0206874 and USA, Notes 4.375% 31dec2029, USD (AH-2029).
Which ETF is more diversified: VGMS or IUSB?
VGMS holds 1043 securities with 8.6% of its assets in the top 15. IUSB has 18026 securities and a top 15 weight of 9.25%.
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