

iShares MSCI USA Size Factor ETF
$178.12−0.18 (−0.10%)
- 0.15%
- $428M
- +15.4%
- 1.38%
- 0M sh
- $178.49
- low $154.04high $187.16
The ETF.net SIZE Grade
Score 71 out of 100
- 3 of 30
Score 71 of 100 falls in the A band. A is 70 or higher, B 55 to under 70, C 40 to under 55, D 25 to under 40, F under 25.
Cost
The fund’s net expense ratio, ranked against its category.A81 out of 100Rank 5 of 30Mission
Whether the fund did what it promised, tested against its stated mandate.A93 out of 100Rank 4 of 23Risk
How the fund held up when markets fell: downside volatility, drawdowns and tail loss.B57 out of 100Rank 12 of 30Tradability
How easy the fund is to trade: daily volume, and how far its price strays from net asset value.F23 out of 100Rank 25 of 30Holdings
How concentrated the fund is, and how complete and current its disclosed holdings are.A89 out of 100Rank 1 of 30Durability
Whether the fund is likely to stay open, judged by its age, its assets and its issuer’s assets.B57 out of 100Rank 15 of 30
Our read on SIZE
AThe size factor without leaving the large-cap pool: SIZE holds roughly 500 US stocks and leans toward the smaller names in that universe, spreading weight away from the mega-cap giants. An iShares factor original from 2013.
The fund seeks to track an index of U.S. stocks that have smaller market capitalizations relative to their peers.
Why people hold it
- Charges 0.15%, roughly half the typical fee among US factor ETFs.
- Tracks the MSCI USA Low Size Index tightly, one of the closer index implementations in its peer group.
- Roughly 500 holdings, so no single name dominates the way it does in a cap-weighted US index.
- Running since 2013, one of the original iShares single-factor funds rather than a recent launch.ishares.com
Worth knowing
- Thinly traded next to headline index funds, so bid-ask spreads can run wider and bigger orders need more care.
- This is a tilt, not a small-cap fund: the index draws from US large and mid caps and favors the smaller end of that pool.
- A mid-sized fund by category standards, not one of the asset-gathering giants. Pays quarterly.
SIZE Holdings
- Stocks
- 519
- 4%
- OKTA
Sectors
- Technology22.0%
- Financials15.1%
- Industrials14.0%
- Health Care12.0%
- Consumer Discretionary9.6%
- Consumer Staples5.2%
- Utilities5.1%
- Materials4.7%
- Real Estate4.5%
- Energy4.4%
- Communication3.2%
Geography
- United States95.15%
- Ireland1.81%
- United Kingdom0.96%
- Switzerland0.63%
- Bermuda0.39%
- Cayman Islands0.38%
- Uruguay0.22%
- Canada0.18%
- 0.28%
SIZE Performance
Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.
Returns run to the Oct 12, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.
| Period | SIZE |
|---|---|
| Year to date | +11.5% |
| 1 month | −0.1% |
| 3 months | −0.2% |
| 1 year | +15.4% |
| 3 years | +16.9% |
| 5 years | +8.2% |
| 10 years | +11.8% |
Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.
| Year | Return bar | SIZE |
|---|---|---|
| 2026 YTD | +11.5% | |
| 2025 | +10.5% | |
| 2024 | +14.4% | |
| 2023 | +17.8% | |
| 2022 | −15.8% | |
| 2021 | +25.1% | |
| 2020 | +16.3% |
SIZE in the news
SIZE Dividends
- 1.38%
- $2.47
- $0.65 per share
- Quarterly
Distribution history
SIZE Risk
- 13.4%
How it’s calculated: standard deviation
The sample standard deviation of monthly total returns, multiplied by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.
- 0.83
How it’s calculated: Sharpe ratio
Subtract each month’s Treasury-bill return from the fund’s monthly total return.
Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.
- −24.0%
How it’s calculated: maximum drawdown
The largest percentage decline from an earlier peak, using total returns with reinvested distributions.
Uses up to five years through the last close, with at least 12 months required.
- 0.97
How it’s calculated: beta
The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.
SIZE Cost
- The middle half of US Factor Index funds
- Median 0.30%
4 of the 30 US Factor Index funds charge less.
Other funds in US Factor Index
- AMGVVanguard Morningstar Mega Cap Value ETFExpense ratio 0.05%1 year return +24.1%
- AUSCAXtrackers MSCI USA Climate Action Equity ETFExpense ratio 0.07%1 year return +15.7%
- ASUSAiShares ESG Optimized MSCI USA ETFExpense ratio 0.25%1 year return +20.4%
- ADXUVU.S. Vector Equity Portfolio ETF Class SharesExpense ratio 0.26%1 year return +21.8%
- BGARPiShares MSCI USA Quality GARP ETFExpense ratio 0.15%1 year return +33.6%


