SIZE

iShares MSCI USA Size Factor ETF

iShares · $417.5m in assets, October 8, 2026

Owns the large and mid-sized US companies in the MSCI USA Index, with weights adjusted for the size factor, as its name describes.

SIZE, the iShares MSCI USA Size Factor ETF ($417 million), sits in StoryVector’s Beta Book: it selects holdings by a factor such as value, size, quality or dividends, not by a story. It carries no market story, so it is not ranked against one. Over the past year it returned +10.2%, against +16.8% for broad US ETFs. Figures to October 2, 2026; past performance, not a recommendation.

SIZE · the ETFFRI OCT 2Market price total return
+11.6% a yearTotal return since launch, April 2013
+10.2%Last 12 months
+9.7%Year to date
17.3%Volatility since launch

Checked, and added to the Beta Book

It selects holdings by a factor such as value, size, quality or dividends, not by a story.

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Factor →
Last checked
July 18, 2026

We check every ETF against the 22 narratives. This one follows the market, a factor or a manager’s choices rather than a story, so it has no narrative and no Share of Narrative. See the narratives on the board → · See the whole Beta Book →

FRI OCT 2MARKET PRICE TOTAL RETURN

1M3MYTD1Y3Y*5Y*
SIZE−3.0%−1.1%+9.7%+10.2%+16.5%+8.0%
The marketbroad US ETFs+0.8%+2.6%+14.6%+16.8%+22.9%+12.9%

1M, 3M, 1Y, 3Y, 5Y: one month to five years. YTD: year to date. * A year, annualised. A dash means the ETF has not traded for the whole period. Since it started trading on April 18, 2013: +11.6% a year.

$10,000 invested October 31, 2016

SIZE $30,248The market $42,209
$10,000$20,000$30,000$40,000$50,000Oct 2016Oct 2018Oct 2020Oct 2022Oct 2024$10,000$20,000$30,000$40,000$50,000Oct 2016Oct 2020Oct 2024

Year by year

SIZEThe market
-20%0%20%40%SIZE 2019: +29.0%The market 2019: +31.3%2019SIZE 2020: +16.3%The market 2020: +21.4%2020SIZE 2021: +25.1%The market 2021: +27.1%2021SIZE 2022: -15.8%The market 2022: -19.8%2022SIZE 2023: +17.8%The market 2023: +27.9%2023SIZE 2024: +14.4%The market 2024: +23.1%2024SIZE 2025: +10.5%The market 2025: +16.8%2025SIZE YTD: +9.7%The market YTD: +14.6%YTD-20%0%20%40%SIZE 2019: +29.0%The market 2019: +31.3%2019SIZE 2020: +16.3%The market 2020: +21.4%2020SIZE 2021: +25.1%The market 2021: +27.1%2021SIZE 2022: -15.8%The market 2022: -19.8%2022SIZE 2023: +17.8%The market 2023: +27.9%2023SIZE 2024: +14.4%The market 2024: +23.1%2024SIZE 2025: +10.5%The market 2025: +16.8%2025SIZE YTD: +9.7%The market YTD: +14.6%YTD

Total return in each calendar year; this year is year to date. A year appears only if SIZE traded for all of it.

Total return on the market price, with each distribution reinvested on its ex-date. Not the NAV return the issuer publishes; the two differ when the ETF trades above or below the value of its holdings. The market is the asset-weighted return of broad US index ETFs. Past performance is no guarantee of future results.

Common questions

Why does SIZE have no story?

It selects holdings by a factor such as value, size, quality or dividends, not by a story.

How has SIZE performed?

SIZE returned +10.2% over the past year, against +16.8% for broad US ETFs, to October 2, 2026. Past performance only.

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Narrative figures are from the weekly board. Performance is market price total return as of October 2, 2026. Assets are StoryVector’s weekly figure. Classification and measurement. Not investment advice. How the measurement works →