Data as of Oct 28, 2026.

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IBB vs SHY: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IBB returned +37.5% to SHY's +1.6%, and SHY charges 0.15% to IBB's 0.44%.

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Net assets on Oct 27, 2026: $11.0bn for iShares Biotechnology ETF and $27.4bn for iShares 1-3 Year Treasury Bond ETF.

At a glance
+37.5%
IBB total return, 1 year
+1.6%
SHY total return, 1 year
0.44%
IBB expense ratio
0.15%
SHY expense ratio

Pair scorecard

SHY costs 0.29 points a year less; their one-year returns differ by 35.9 points; SHY is 2.5 times larger.

IBB vs SHY: Differences, Returns & Fees
MeasureIBBSHY
Return
Total return, 1 year+37.5%+1.6%
Benchmark
What it tracksBiotechICE U.S. Treasury 1-3 Year Bond Index
Cost and size
Expense ratio0.44%0.15%
Net assets, as of Oct 27, 2026$11.0bn$27.4bn
Active share vs the S&P 50099%
Holdings
Holdings in common0%
In the S&P 500, by weight40%
Top ten holdings, share of the fund50%

Holdings in common uses holdings dated Oct 27, 2026. Method

Risk and return

Aug 2, 2002 to Oct 23, 2026 · 1,264 weekly returns
IBB SHY
Return
Total return edge IBB +1,227.3% +58.9%
Annualized edge IBB +11.2% +1.9%
Price return edge IBB +1,170.6% −0.1%
Risk
Volatility edge SHY 22.8% 1.4%
Max drawdown edge SHY −37.5% −5.6%
Risk-adjusted
Sharpe edge IBB 0.50 0.11
Sortino edge IBB 0.73 0.16
Calmar edge SHY 0.30 0.35
Reading

IBB returned more: +1,227.3% to +58.9%. SHY swung less: 1.4% to 22.8%. SHY fell less at its worst: −5.6% to −37.5%.

Full scorecard

9 measures, with how each is measured
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Risk and return: IBB vs SHY: Differences, Returns & Fees
MeasureIBBSHYEdgeHow it is measured
Return
Total return+1,227.3%+58.9%IBBPrice change plus distributions, reinvested.
Annualized+11.2%+1.9%IBBTotal return as a yearly rate.
Price return+1,170.6%−0.1%IBBPrice change alone, distributions left out.
Risk
Volatility22.8%1.4%SHYSpread of weekly returns, annualized. Lower is steadier.
Downside deviation15.8%0.9%SHYLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−37.5%−5.6%SHYDeepest fall from a high to the low after it.
Risk-adjusted
Sharpe0.500.11IBBReturn above Treasury bills per unit of volatility.
Sortino0.730.16IBBReturn above Treasury bills per unit of downside deviation.
Calmar0.300.35SHYAnnualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 1,264 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

0%

By the books each fund has filed, IBB and SHY hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first IBB SHY
Only in one fund ↓
Only in IBB
GILEAD SCIENCES 8.56%
AMGEN INC 8.20%
VERTEX PHARMACEUTICALS 7.53%
REGENERON PHARMACEUTICALS 5.64%
MODERNA 5.29%
NATERA 3.85%
ARGENX SE ADR 3.42%
ILLUMINA INC 2.93%
Only in SHY
TREASURY NOTE 2.11%
TREASURY NOTE 1.99%
TREASURY NOTE 1.83%
TREASURY NOTE 1.73%
TREASURY NOTE 1.62%
TREASURY NOTE 1.54%
TREASURY NOTE 1.51%
TREASURY NOTE 1.49%
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Side by side

IBB iShares Biotechnology ETF SHY iShares 1-3 Year Treasury Bond ETF
Where it sits Thematic ETF Bond ETF
What it is Biotech Tracks an index of 1-3 Year Treasury Bond
Total return, 1 year +37.5% +1.6%
Its benchmark over the same days not measured +1.7% (BBSB)
Gap to its benchmark not measured −0.1 pts vs BBSB
Expense ratio 0.44% 0.15%
Holdings 245 90
Net assets, as of Oct 27, 2026 $11.0bn $27.4bn

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

Client brief · page 1 of 2 Report BR-4E9AF055E7

IBB and SHY do different jobs. What does each one do in a portfolio?

  1. What each follows. IBB follows Biotech and SHY follows ICE U.S. Treasury 1-3 Year Bond Index.
  2. Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 27, 2026).
  3. One-year total return. Over 1 year to Oct 28, 2026 IBB returned +37.5% and SHY +1.6% with distributions reinvested, a gap of 35.9 points.

Data as of Oct 28, 2026.

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About each fund
IBB

By weight, 40% of IBB's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 50% of the fund across 245 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +37.5% with distributions reinvested.

SHY

SHY tracks an index of 1-3 Year Treasury Bond. Over the year to Oct 28, 2026 it returned +1.6% with distributions reinvested, against +1.7% for its benchmark, the ICE U.S. Treasury 1-3 Year Bond Index. The prospectus expense ratio is 0.15% a year.

Questions people ask

Are IBB and SHY in the same category?
IBB is a thematic ETF and SHY is a bond ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
Which returned more over the last year, IBB or SHY?
In the year to Oct 28, 2026, with distributions reinvested, IBB returned +37.5% and SHY +1.6%.
Which is cheaper, IBB or SHY?
SHY is cheaper, by 0.29 percentage points a year. That is about $29 on $10,000 held for a year. Fees come from each fund's prospectus.
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ETFIQ, IBB against SHY, data as of Oct 28, 2026. https://etfiq.com/compare/any/ibb-vs-shy

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.