iShares MSCI USA Size Factor ETF (SIZE) Performance
SIZE total return
Distributions reinvested · as of Oct 23, 2026- YTD
- +12.3% since Dec 31, 2025
- 1 year
- +12.8% total return
- 5 years
- +7.4% a year
- 10 years
- +11.9% a year
- Since first price
- +11.8% a year since 2013
SIZE trailing returns vs SPY, QQQ, AGG
| Period | SIZE total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | +2.3% | +2.3% | −1.0% | −5.0% | +0.9% |
| 3 months | +2.1% | +1.7% | +3.2% | +1.9% | −0.4% |
| 6 months | +6.5% | +5.8% | +7.8% | +8.4% | −1.5% |
| YTD | +12.3% | +11.2% | +12.3% | +15.1% | −1.0% |
| 1 year | +12.8% | +11.1% | +14.4% | +15.9% | −1.1% |
| 3 years | +66.9%+18.6%/yr | +59.6% | +87.4%+23.3%/yr | +101.4%+26.3%/yr | +16.6%+5.2%/yr |
| 5 years | +42.8%+7.4%/yr | +32.5% | +79.3%+12.4%/yr | +94.0%+14.2%/yr | −0.8%−0.2%/yr |
| 10 years | +209.2%+11.9%/yr | +162.8% | +315.9%+15.3%/yr | +538.9%+20.4%/yr | +14.0%+1.3%/yr |
| Since inceptionApr 18, 2013 | +350.6%+11.8%/yr | +258.2% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: SIZE vs SPY
From Apr 18, 2013: SIZE grew to $45,065, SPY to $61,963.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
SIZE returns by calendar year
10 of 12 full years positive. Best 2019 (+29.0%), worst 2022 (−15.9%). 2026 is year to date.
SIZE annual returns table
| Year | SIZE | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | +12.3% | −8.0% | +12.3% | +15.1% | −1.0% |
| 2025 | +10.5% | −17.4% | +17.7% | +20.8% | +7.2% |
| 2024 | +14.4% | −7.1% | +24.9% | +25.6% | +1.3% |
| 2023 | +17.8% | −13.3% | +26.2% | +54.9% | +5.7% |
| 2022 | −15.9% | −23.6% | −18.2% | −32.6% | −13.0% |
| 2021 | +25.1% | −7.0% | +28.7% | +27.4% | −1.8% |
| 2020 | +16.3% | −39.2% | +18.3% | +48.6% | +7.5% |
| 2019 | +29.0% | −7.1% | +31.2% | +39.0% | +8.5% |
| 2018 | −6.6% | −18.7% | −4.6% | −0.1% | +0.1% |
| 2017 | +18.8% | −2.4% | +21.7% | +32.7% | +3.6% |
| 2016 | +12.2% | −7.8% | +12.0% | +7.1% | +2.4% |
| 2015 | +1.6% | −9.9% | +1.2% | +9.4% | +0.5% |
| 2014 | +16.1% | −7.0% | +13.5% | +19.2% | +6.0% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
SIZE largest drawdowns
Now 3.5% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Feb 20, 2020 | −39.2% | Mar 23, 2020 | Oct 12, 2020 | 32 days | 8 months |
| Nov 16, 2021 | −24.0% | Oct 14, 2022 | Feb 15, 2024 | 11 months | 2.2 years |
| Nov 29, 2024 | −18.7% | Apr 8, 2025 | Jul 3, 2025 | 4 months | 7 months |
| Sep 21, 2018 | −18.7% | Dec 24, 2018 | Mar 21, 2019 | 3 months | 6 months |
| Aug 17, 2015 | −12.8% | Feb 11, 2016 | Apr 1, 2016 | 6 months | 7 months |
Declines from a closing high (distributions reinvested) of 10% or more. Underwater = time from the peak until the old high was regained.
SIZE risk statistics
| Statistic | 3 years | 5 years | 10 years | Since 2013 |
|---|---|---|---|---|
| Annualized return | +15.7% | +8.0% | +11.3% | +11.4% |
| Volatility (annualized) | 13.4% | 16.3% | 16.7% | 15.3% |
| Sharpe ratio | 0.84 | 0.33 | 0.59 | 0.67 |
| Sortino ratio | 1.41 | 0.51 | 0.89 | 1.03 |
| Best month | +9.9% | +9.9% | +14.3% | +14.3% |
| Worst month | −6.1% | −9.6% | −18.2% | −18.2% |
| Best 12 months | +33.6% | +33.6% | +70.8% | +70.8% |
| Worst 12 months | +3.4% | −17.1% | −17.4% | −17.4% |
| Positive months | 67% | 57% | 64% | 64% |
| Beta vs S&P 500 | 0.93 | 0.96 | 1.03 | — |
| Correlation with S&P 500 | 0.86 | 0.93 | 0.94 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
SIZE rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 151 | −17.4% | +12.3% | +70.8% | 86% |
| 3-year (a year) | 127 | −0.0% | +11.0% | +23.3% | 99% |
| 5-year (a year) | 103 | +3.3% | +10.5% | +17.0% | 100% |
| 10-year (a year) | 43 | +9.1% | +11.0% | +12.4% | 100% |
Every holding period starting at a month-end since 2013. Returns for 3 years and longer are annualized.
SIZE performance overview
iShares MSCI USA Size Factor ETF (SIZE) returned +12.8% over the past year and +11.9% a year over ten years, with distributions reinvested. Since its first recorded price in 2013 it has returned +11.8% a year, turning $10,000 into about $45,065. Over the same year S&P 500 (SPY) returned +14.4%.
The deepest decline was −39.2%, from Feb 20, 2020 to Mar 23, 2020, and it took 7 months to get back to the old high. SIZE finished 10 of its 12 full calendar years with a gain; the best year was 2019 (+29.0%) and the worst 2022 (−15.9%). Volatility has been 15.3% a year.
Related: SIZE chart, SIZE holdings, SIZE dividends, SIZE valuation. See the SIZE overview for the latest quote and fund facts.
SIZE performance FAQ
What is the SIZE return over the past year?
SIZE returned +12.8% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it rose 11.1%.
What is the average annual return of SIZE?
SIZE has returned +7.4% a year over 5 years, +11.9% a year over 10 years, +11.8% a year since April 18, 2013 (total return, distributions reinvested).
How much would $10,000 invested in SIZE be worth?
$10,000 invested in SIZE at its first recorded close on April 18, 2013 would be worth about $45,065 on October 23, 2026 with distributions reinvested.
What was the worst year for SIZE?
The worst calendar year was 2022, with a total return of −15.9%. The best was 2019 at +29.0%.
What is the biggest drawdown of SIZE?
The largest peak-to-trough decline was −39.2% between February 20, 2020 and March 23, 2020. It recovered to the old high on October 12, 2020, 7 months after the bottom.
How volatile is SIZE?
Over the past 3 years SIZE had an annualized volatility of 13.4% and a Sharpe ratio of 0.84 (excess return over 1–3 month T-bills per unit of risk).