Data as of Oct 28, 2026.

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BSV vs IUSB: Differences, Returns & Fees

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BSV's duration was 2.5 years on Jun 30, 2026 and IUSB's 5.5 on Jul 31, 2026; BSV charges 0.03% to IUSB's 0.06%.

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Net assets: $45.4bn on Sep 30, 2026 for Vanguard Short-Term Bond ETF, and $49.8bn on Oct 27, 2026 for iShares Core Universal USD Bond ETF.

At a glance
+1.0%
BSV total return, 1 year
−1.2%
IUSB total return, 1 year
0.03%
BSV expense ratio
0.06%
IUSB expense ratio

Pair scorecard

BSV costs 0.03 points a year less; their one-year returns differ by 2.2 points; IUSB is 1.1 times larger.

BSV vs IUSB: Differences, Returns & Fees
MeasureBSVIUSB
Return
Total return, 1 year+1.0%−1.2%
Benchmark
What it tracksBloomberg U.S. 1-5 Year Government/Credit Float Adjusted IndexBloomberg U.S. Universal Index
Cost and size
Expense ratio0.03%0.06%
Net assets, as of Sep 30, 2026$45.4bn$48.1bn
Holdings
Holdings in common30%

Holdings in common uses holdings dated Jun 30, 2026 and Jul 31, 2026. Method

Risk and return

Jun 20, 2014 to Oct 23, 2026 · 644 weekly returns
BSV IUSB
Return
Total return edge IUSB (slight) +25.5% +28.3%
Annualized edge IUSB (slight) +1.9% +2.0%
Price return edge BSV −4.2% −10.7%
Risk
Volatility edge BSV 2.2% 5.0%
Max drawdown edge BSV −8.1% −17.7%
Risk-adjusted
Sharpe edge IUSB −0.09 0.02
Sortino edge IUSB −0.13 0.02
Calmar edge BSV 0.23 0.11
Reading

IUSB returned slightly more: +28.3% to +25.5%. BSV swung less: 2.2% to 5.0%. BSV fell less at its worst: −8.1% to −17.7%.

Full scorecard

9 measures, with how each is measured
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Risk and return: BSV vs IUSB: Differences, Returns & Fees
MeasureBSVIUSBEdgeHow it is measured
Return
Total return+25.5%+28.3%IUSB (slight)Price change plus distributions, reinvested.
Annualized+1.9%+2.0%IUSB (slight)Total return as a yearly rate.
Price return−4.2%−10.7%BSVPrice change alone, distributions left out.
Risk
Volatility2.2%5.0%BSVSpread of weekly returns, annualized. Lower is steadier.
Downside deviation1.5%3.6%BSVLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−8.1%−17.7%BSVDeepest fall from a high to the low after it.
Risk-adjusted
Sharpe−0.090.02IUSBReturn above Treasury bills per unit of volatility.
Sortino−0.130.02IUSBReturn above Treasury bills per unit of downside deviation.
Calmar0.230.11BSVAnnualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 644 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

30%

By the books each fund has filed, BSV and IUSB hold 30% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Jul 31, 2026.

0 half 100%

half

30% in common

Positions both hold · largest shared weight first BSV IUSB
US TREASURY N/B, due Dec 31, 2029 0.77% 0.37%
US TREASURY N/B, due Feb 28, 2030 0.88% 0.31%
US TREASURY N/B, due Jun 15, 2028 0.39% 0.30%
US TREASURY N/B, due May 31, 2028 0.67% 0.30%
US TREASURY N/B, due Oct 31, 2030 0.45% 0.29%
US TREASURY N/B, due Apr 30, 2028 0.33% 0.29%
US TREASURY N/B, due Sep 30, 2030 0.70% 0.28%
US TREASURY N/B, due Mar 31, 2031 0.56% 0.28%
US TREASURY N/B, due Dec 31, 2030 0.42% 0.27%
US TREASURY N/B, due May 15, 2028 0.46% 0.27%
US TREASURY N/B, due Apr 15, 2028 0.46% 0.27%
US TREASURY N/B, due Feb 15, 2031 0.77% 0.26%
Only in one fund ↓
Only in BSV
US TREASURY N/B, due Jul 31, 2027 0.38%
US TREASURY N/B, due Feb 15, 2030 0.38%
US TREASURY N/B, due Aug 15, 2029 0.33%
US TREASURY N/B, due Nov 15, 2029 0.30%
US TREASURY N/B, due Jun 30, 2027 0.11%
US TREASURY N/B, due Jun 30, 2027 0.10%
FED HOME LN BANK, due Jun 30, 2028 0.05%
BRIT COLUMBIA, due Apr 23, 2031 0.04%
Only in IUSB
Uniform Mortgage-Backed Securities, due Aug 25, 2056 0.41%
U.S. Treasury Notes, due May 15, 2036 0.37%
U.S. Treasury Notes, due Feb 15, 2034 0.36%
U.S. Treasury Notes, due Feb 15, 2035 0.35%
U.S. Treasury Notes, due Aug 15, 2035 0.34%
U.S. Treasury Notes, due May 15, 2034 0.34%
U.S. Treasury Notes, due Nov 15, 2034 0.34%
U.S. Treasury Notes, due May 15, 2035 0.33%
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Side by side

BSV Vanguard Short-Term Bond ETF IUSB iShares Core Universal USD Bond ETF
Where it sits Bond ETF Bond ETF
What it is Tracks an index of Short-Term Bond Tracks an index of Universal USD Bond
Total return, 1 year +1.0% −1.2%
Expense ratio 0.03% 0.06%
Holdings 3157 18338
Net assets, BSV as of Sep 30, 2026 and IUSB as of Oct 27, 2026 $45.4bn $49.8bn

BSV and IUSB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Client brief · page 1 of 2 Report BR-04186B4570

BSV and IUSB do different jobs. What does each one do in a portfolio?

  1. What each follows. BSV follows Bloomberg U.S. 1-5 Year Government/Credit Float Adjusted Index and IUSB follows Bloomberg U.S. Universal Index.
  2. Holdings in common. 30% of the weight is in the same securities (holdings dated Jun 30, 2026 and Jul 31, 2026).
  3. One-year total return. Over 1 year to Oct 28, 2026 BSV returned +1.0% and IUSB −1.2% with distributions reinvested, a gap of 2.2 points.

Data as of Oct 28, 2026.

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About each fund
BSV

BSV tracks an index of Short-Term Bond. Over the year to Oct 28, 2026 it returned +1.0% with distributions reinvested. The prospectus expense ratio is 0.03% a year.

IUSB

IUSB tracks an index of Universal USD Bond. Over the year to Oct 28, 2026 it returned −1.2% with distributions reinvested. The prospectus expense ratio is 0.06% a year.

Questions people ask

Which returned more over the last year, BSV or IUSB?
In the year to Oct 28, 2026, with distributions reinvested, BSV returned +1.0% and IUSB −1.2%.
Which is cheaper, BSV or IUSB?
BSV is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.
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ETFIQ, BSV against IUSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/bsv-vs-iusb

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