FLTBvsIUSBETF Comparison
VS
Fidelity Limited Term Bond ETF (FLTB) belongs to the Intl IG Bonds segment. iShares Core Total USD Bond Market ETF (IUSB) is part of the US Aggregate Bonds segment. FLTB's top 3 sector exposures are Finance, Sovereign and Utilities. In contrast, IUSB's top sector exposures are Sovereign, Finance and Industrials. FLTB is more expensive with a Total Expense Ratio (TER) of 0.25%, versus 0.06% for IUSB. FLTB is up 0.37% year-to-date (YTD) with +$165M in YTD flows. IUSB performs worse with -1.69% YTD performance, and +$16.80B in YTD flows. Run a side-by-side ETF comparison of FLTB 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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FLTB vs IUSB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/19/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | FLTB IUSB | -0.19%-0.85% | -0.62%-1.88% | +0.37%-1.69% | +1.06%-1.69% | +17.31%+17.71% | +11.81%+0.01% |
| Flows | FLTB IUSB | +$12M+$5.76B | +$79M+$7.63B | +$165M+$16.80B | +$221M+$18.25B | +$327M+$28.05B | +$223M+$37.63B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | FLTB IUSB | +2.03%+4.19% | +1.84%+3.67% | +2.16%+4.61% | +2.67%+5.55% |
| Max drawdown | FLTB IUSB | -1.58%-3.24% | -1.58%-4.33% | -1.58%-4.33% | -8.64%-17.40% |
| Max drawdown duration | FLTB IUSB | 55d55d | 55d232d | 55d280d | 918d1406d |
Trading data
FLTB | IUSB | |
Last sale 10/19/2026 at 1:30 PM | $49.24 | $44.33 |
| Previous close 10/19/2026 | $49.25 | $44.47 |
| Consolidated volume 10/19/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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FLTB
is actively managed and doesn’t replicate an indexFLTB | 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 10/19/2026 at 1:30 PM
Live
Closed
FLTB | IUSB | |
|---|---|---|
| Last price | $49.24 | $44.33 |
| 1D performance | -0.02% | -0.31% |
| AuM | $486.77 M | $49.21 B |
| E/R | 0.25% | 0.06% |
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Exposure
Countries
FLTB
USA
61.9%
Other
38.1%
IUSB
USA
72.98%
Other
27.02%
Sectors
FLTB
Finance
40.39%
Sovereign
11.51%
Other
48.1%
IUSB
Sovereign
42.65%
Finance
13.17%
Other
44.17%
Diversification
FLTB
Total weight of top 15 holdings out of 15
17.62%
IUSB
Total weight of top 15 holdings out of 15
9.55%
Top 15 holdings
Data as of August 31, 2026
FLTB
USA, Notes 3.625% 31aug2029, USD (AC-2029)
6.88%
USA, Notes 4.125% 31may2031, USD (Z-2031)
2.79%
US31635A1051
1.45%
USA, Notes 3.875% 15may2029, USD (AN-2029)
1.04%
GA Global Funding Trust, 5.4% 13jan2030, USD (2025-1)
0.52%
Trans-Allegheny Interstate, 5% 15jan2031, USD
0.52%
Pemex, 6.7% 16feb2032, USD (C)
0.51%
Mexico, 6% 13may2030, USD
0.51%
LPL Holdings, 4.9% 3apr2028, USD
0.50%
Pinnacle West Capital, 5.15% 15may2030, USD
0.50%
VICI Properties, 4.75% 1apr2028, USD
0.49%
Glencore International AG, 4.907% 1apr2028, USD
0.48%
Western-Southern Global Funding, 4.9% 1may2030, USD
0.48%
Plains All American Pipeline, 3.55% 15dec2029, USD
0.48%
Mizuho Financial Group, 4.711% 8jul2031, USD
0.47%
IUSB
BlackRock Liquidity TempCash
4.49%
USA, Notes 4% 15nov2035, USD (F-2035)
0.49%
US01F0206957
0.41%
USA, Notes 4.375% 31dec2029, USD (AH-2029)
0.37%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.36%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
0.36%
USA, Notes 4% 15feb2034, USD (B-2034)
0.35%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.35%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.35%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.35%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.34%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.34%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.34%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.33%
USA, Notes 2.75% 15aug2032, USD (E-2032)
0.32%
Frequently asked questions about FLTB and IUSB
How have the FLTB and IUSB ETFs performed in 2026?
As of October 19, 2026, FLTB is up 0.37% year-to-date (YTD), while IUSB has lost -1.69%. That puts FLTB better performer ahead so far this year.
Which ETF is attracting more investor money: FLTB or IUSB?
Year-to-date, the FLTB ETF saw +$165M in flows, compared to +$16.80B for IUSB.
Which ETF is more volatile: FLTB or IUSB?
Over the past year, FLTB had a volatility of 1.84%, while IUSB experienced 3.67%.
Which ETF is bigger: FLTB or IUSB?
As of October 19, 2026, FLTB holds $486.77 M in assets under management (AUM), while IUSB manages $49.21 B.
What sectors do the FLTB and IUSB ETFs invest in?
FLTB leans toward sectors like Finance and Sovereign. Meanwhile, IUSB focuses on Sovereign and Finance.
What are the top holdings of the FLTB ETF and IUSB ETF?
FLTB top holdings include USA, Notes 3.625% 31aug2029, USD (AC-2029), USA, Notes 4.125% 31may2031, USD (Z-2031) and US31635A1051. IUSB holds in its top three: BlackRock Liquidity TempCash, USA, Notes 4% 15nov2035, USD (F-2035) and US01F0206957.
Which ETF is more diversified: FLTB or IUSB?
FLTB holds 969 securities with 17.62% of its assets in the top 15. IUSB has 18013 securities and a top 15 weight of 9.55%.
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Latest news about FLTB & IUSB
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