Data as of Oct 28, 2026.

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Across categories

IBB vs IWD: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IBB returned +37.5% to IWD's +27.5%, and IWD charges 0.18% to IBB's 0.44%.

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Net assets on Oct 27, 2026: $11.0bn for iShares Biotechnology ETF and $83.0bn for iShares Russell 1000 Value ETF.

At a glance
+37.5%
IBB total return, 1 year
+27.5%
IWD total return, 1 year
0.44%
IBB expense ratio
0.18%
IWD expense ratio

Pair scorecard

IWD costs 0.26 points a year less; their one-year returns differ by 10.0 points; IWD is 7.5 times larger.

IBB vs IWD: Differences, Returns & Fees
MeasureIBBIWD
Return
Total return, 1 year+37.5%+27.5%
Benchmark
What it tracksBiotechRussell 1000 Value Index
Cost and size
Expense ratio0.44%0.18%
Net assets, as of Oct 27, 2026$11.0bn$83.0bn
Active share vs the S&P 50099%
Holdings
Holdings in common2%
Top ten holdings, share of the fund50%29.6%

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

What they share

2%

By the books each fund has filed, IBB and IWD hold 2% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

0 half 100%

half

2% in common

Positions both hold · largest shared weight first IBB IWD
GILEAD SCIENCES 8.56% 0.52%
VERTEX PHARMACEUTICALS 7.53% 0.35%
REGENERON PHARMACEUTICALS 5.64% 0.21%
MODERNA 5.29% 0.20%
AMGEN INC 8.20% 0.19%
ILLUMINA INC 2.93% 0.11%
BIOGEN 2.58% 0.10%
UNITED THERAPEUTICS 1.71% 0.07%
INCYTE CORP 1.63% 0.05%
ROIVANT SCIENCES LTD 1.33% 0.05%
CHARLES RIVER LABORATORIES INTERNA 1.18% 0.05%
EXELIXIS INC 1.09% 0.03%
Only in one fund ↓
Only in IBB
NATERA 3.85%
ARGENX SE ADR 3.42%
REVOLUTION MEDICINES 2.50%
BEONE MEDICINES AG 2.15%
ALNYLAM PHARMACEUTICALS 2.11%
GENMAB SPONSORED ADR 1.72%
INSMED 1.42%
MEDPACE HOLDINGS 1.06%
Only in IWD
APPLE 6.08%
AMAZON.COM INC 5.95%
MICROSOFT 5.21%
BERKSHIRE HATHAWAY INC CLASS B 2.67%
JPMORGAN CHASE & CO 2.37%
EXXONMOBIL HOLDINGS CORP 1.96%
JOHNSON & JOHNSON 1.71%
WALMART 1.26%
Check overlap with more funds →

Side by side

IBB iShares Biotechnology ETF IWD iShares Russell 1000 Value ETF
Where it sits Thematic ETF Stock ETF
What it is Biotech Tracks the Russell 1000 value
Total return, 1 year +37.5% +27.5%
Its benchmark over the same days not measured +27.7% (VONV)
Gap to its benchmark not measured −0.2 pts vs VONV
Expense ratio 0.44% 0.18%
Already in the S&P 500 40.2% 90.0%
Holdings 245 871
Net assets, as of Oct 27, 2026 $11.0bn $83.0bn

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

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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.

IWD

IWD tracks the Russell 1000 value. Over the year to Oct 28, 2026 it returned +27.5% with distributions reinvested, against +27.7% for its benchmark, the Russell 1000 Value Index. The prospectus expense ratio is 0.18% a year. By its holdings published by its issuer for Oct 27, 2026, 90% of the fund by weight is stocks the S&P 500 also holds, across 871 positions, with the top ten at 29.6%.

Questions people ask

Are IBB and IWD in the same category?
IBB is a thematic ETF and IWD is a stock 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 IWD?
In the year to Oct 28, 2026, with distributions reinvested, IBB returned +37.5% and IWD +27.5%.
Which is cheaper, IBB or IWD?
IWD is cheaper, by 0.26 percentage points a year. That is about $26 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IBB and IWD overlap with the S&P 500?
By their latest filed holdings, 40% of IBB and 90% of IWD by weight is stocks the S&P 500 already holds.
Other comparisons
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ETFIQ, IBB against IWD, data as of Oct 28, 2026. https://etfiq.com/compare/any/ibb-vs-iwd

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