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GRID vs IBB: which is really different?

GRID and IBB hold 0% of their weight in the same names, and IBB returned +36.1% over the year. First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund and iShares Biotechnology ETF.

IBB costs 0.12 points a year less; their one-year returns differ by 16.6 points; GRID is 1.2 times larger.

GRIDIBB
Expense ratio0.56%0.44%
Net assets, as of Oct 8, 2026$12.0bn$10.3bn
Total return, 1 year+19.5%+36.1%
What it tracksElectrification and the gridBiotech
Holdings in common0%
S&P 500, total return, 1 year+17.3%
Against the S&P 500, 1 yearahead by 2.3 ptsahead by 18.8 pts
Active share vs the S&P 50092%
Below its all-time high8.9%, high on May 11, 2026

Holdings in common uses holdings dated Oct 8, 2026.

40.5%
GRID in the S&P 500
39.5%
IBB in the S&P 500
+19.5%
GRID total return, 1 year
+36.1%
IBB total return, 1 year
GRID · 1 year to Oct 9, 202660% of its weight is outside the S&P 500
60% of its weight is outside the S&P 50041% of GRID's weight is in S&P 500 companies and 60% is outside the index. Holdings as of Oct 8, 2026.41%60%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 93% · top ten 58% of the fund · 123 holdings as published by its issuer for Oct 8, 2026 · Nasdaq-100: 9% in60% of its weight is outside the S&P 50041% of GRID's weight is in S&P 500 companies and 60% is outside the index. Holdings as of Oct 8, 2026.41%60%in the S&P 500outside the S&P 500active share 93% · Nasdaq-100: 9% in

41% of GRID's weight is in S&P 500 companies and 60% is outside the index. Holdings as of Oct 8, 2026.

IBB · 1 year to Oct 9, 202661% of its weight is outside the S&P 500
61% of its weight is outside the S&P 50040% of IBB's weight is in S&P 500 companies and 61% is outside the index. Holdings as of Oct 8, 2026.40%61%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 99% · top ten 50% of the fund · 245 holdings as published by its issuer for Oct 8, 2026 · Nasdaq-100: 33% in61% of its weight is outside the S&P 50040% of IBB's weight is in S&P 500 companies and 61% is outside the index. Holdings as of Oct 8, 2026.40%61%in the S&P 500outside the S&P 500active share 99% · Nasdaq-100: 33% in

40% of IBB's weight is in S&P 500 companies and 61% is outside the index. Holdings as of Oct 8, 2026.

ETFIQ Off-Index Score · IBB scores higherHow much of it is not the index it is sold as an alternative to?
0.1, the lowest in this set92.3, the highest

A percentile among the 391 thematic ETFs with a holdings filing. All thematic ETFs ranked by it → How it is computed →

What they hold in common

By the books each fund has filed, GRID and IBB hold 0% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 8, 2026.

half

0% in common

Positions both hold, largest shared weight first
Holding GRID IBB
Only in GRID
Quanta Services, Inc. 8.99%
Johnson Controls International Plc 8.59%
Eaton Corporation Plc 8.41%
ABB Ltd 7.72%
Schneider Electric SE 6.82%
Prysmian SpA 3.91%
National Grid Plc 3.83%
E.ON SE 3.66%
Only in IBB
GILEAD SCIENCES 8.37%
AMGEN INC 7.89%
VERTEX PHARMACEUTICALS 7.69%
REGENERON PHARMACEUTICALS 5.40%
MODERNA 5.30%
NATERA 3.88%
ARGENX SE ADR 3.35%
ILLUMINA INC 2.94%

0% of the two portfolios are the same securities at the same weight.

Performance, window by window

Total returnvs the S&P 500vs the Nasdaq-100
WindowGRIDIBBGRIDIBBGRIDIBB
3 months−1.9%+7.5%−5.3 pts+4.1 pts−5.6 pts+3.9 pts
6 months+2.3%+21.9%−12.9 pts+6.8 pts−20.9 pts−1.3 pts
1 year+19.5%+36.1%+2.3 pts+18.8 pts−4.0 pts+12.5 pts
3 years+98.8%+69.1%+13.1 pts−16.7 pts−8.4 pts−38.2 pts
Since launch
GRID Nov 2009 · IBB Feb 2001
+621.8%+525.3%−223.3 pts−299.7 pts−1,223.8 pts−936.3 pts

Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

GRID
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund · Holds 123 stocks in electrification and the grid, 40% of its weight in S&P 500 companies
IBB
iShares Biotechnology ETF · Holds 245 stocks in biotech, 40% of its weight in S&P 500 companies
Issuer First Trust iShares
Theme Electrification and the grid Biotech
In the S&P 500 40.5% 39.5%
Active share vs the S&P 500 92.5% 99.0%
In the Nasdaq-100 8.5% 33.1%
Holdings 123 245
Top ten, share of the fund 57.5% 49.9%
Expense ratio 0.56% 0.44%
Fee for the differing part 0.61% 0.44%
Total return, 1 year +19.5% +36.1%
vs the S&P 500 +2.3 pts +18.8 pts
vs the Nasdaq-100 −4.0 pts +12.5 pts
Below its high −8.9% −4.8%
Net assets, as of Oct 8, 2026 $12.0bn $10.3bn

As of Oct 9, 2026. Source: ETFIQ.

GRID in plain words

By weight, 40% of GRID's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 92%. The top ten holdings are 58% of the fund across 123 positions, as published by its issuer for Oct 8, 2026. Over the year to Oct 9, 2026 the fund returned +19.5% with distributions reinvested against +17.3% for the S&P 500, so a holder was ahead by 2.3 pts. It sits 8.9% below its all-time high of May 11, 2026.

IBB in plain words

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 8, 2026. Over the year to Oct 9, 2026 the fund returned +36.1% with distributions reinvested against +17.3% for the S&P 500, so a holder was ahead by 18.8 pts.

Questions people ask

Do GRID and IBB hold the same stocks?
By their latest filings, 0% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, GRID or IBB?
GRID has 40% of its weight in S&P 500 names and IBB has 40%, so IBB differs more from the index.
Which is cheaper, GRID or IBB?
GRID charges 0.56% a year and IBB charges 0.44%, so IBB is cheaper. Fees come from each fund's prospectus.
Other comparisons
GRID vs XBIGRID vs URAGRID vs SILGRID vs XMEIBB vs ITAIBB vs PAVEIBB vs IGFIBB vs IGV
GRID on its own →IBB on its own →How every figure is computed →Standards and sources →
Where these figures came from
GRID filings on SEC EDGAR ↗GRID prospectus with the expense ratio (SEC) ↗First Trust page for GRID ↗IBB filings on SEC EDGAR ↗IBB prospectus with the expense ratio (SEC) ↗iShares page for IBB ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

It is a position in a set, not a rating, and neither end of it is a recommendation.

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

Every figure is an ETFIQ calculation with distributions reinvested.

Cite this page

ETFIQ, GRID against IBB, data as of Oct 9, 2026. https://etfiq.com/compare/themes/grid-vs-ibb

Open data

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