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SIZEvsFEXETF Comparison
iShares MSCI USA Size Factor ETF (SIZE) belongs to the US Large Cap segment. First Trust Large Cap Core AlphaDEX Fund ETF (FEX) is part of the US Multi-Factor segment. SIZE's top 3 sector exposures are Information Technology, Industrials and Financials. In contrast, FEX's top sector exposures are Financials, Industrials and Information Technology. SIZE is less expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.57% for FEX. SIZE is down -0.96% year-to-date (YTD) with -$8M in YTD flows. FEX performs better with 2.46% YTD performance, and -$18M in YTD flows. Run a side-by-side ETF comparison of SIZE and FEX below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
SIZE vs FEX performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SIZE FEX | -4.68%-3.48% | -1.59%+1.99% | -0.96%+2.46% | +14.72%+22.20% | +49.09%+63.08% | +41.47%+61.08% |
| Flows | SIZE FEX | -$8M+$90K | +$8M-$18M | -$8M-$18M | +$37M-$76M | -$47M-$243M | -$700M-$212M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SIZE FEX | +12.40%+12.05% | +17.53%+17.93% | +14.75%+14.96% | +17.05%+16.84% |
| Max drawdown | SIZE FEX | -5.51%-4.90% | -13.31%-13.48% | -18.57%-19.51% | -24.05%-21.53% |
| Max drawdown duration | SIZE FEX | 15d18d | 46d46d | 219d232d | 820d757d |
SIZE | FEX | |
Last sale 3/13/2026 at 1:30 PM | $160.04 | $121.30 |
| Previous close 03/12/2026 | $160.10 | $121.44 |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Create an account to view replication metrics
SIZE | FEX | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
SIZE | FEX | |
|---|---|---|
| Last price | $160.04 | $121.30 |
| 1D performance | -0.04% | -0.12% |
| AuM | $376.20 M | $1.39 B |
| E/R | 0.15% | 0.57% |
SIZE | FEX | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | First Trust |
| Benchmark | MSCI USA Low Size Index | NASDAQ AlphaDEX Large Cap Core Index |
| N° of holdings | 511 | 356 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | April 16, 2013 | May 8, 2007 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the SIZE and FEX ETFs performed in 2026?
As of March 13, 2026, SIZE is down -0.96% year-to-date (YTD), while FEX has returned 2.46%. That puts FEX better performer ahead so far this year.
Which ETF is attracting more investor money: SIZE or FEX?
Year-to-date, the SIZE ETF saw -$8M in flows, compared to -$18M for FEX.
Which ETF is more volatile: SIZE or FEX?
Over the past year, SIZE had a volatility of 17.53%, while FEX experienced 17.93%.
Which ETF is bigger: SIZE or FEX?
As of March 13, 2026, SIZE holds $376.20 M in assets under management (AUM), while FEX manages $1.39 B.
What sectors do the SIZE and FEX ETFs invest in?
SIZE leans toward sectors like Information Technology, Industrials and Financials. Meanwhile, FEX focuses on Financials, Industrials and Information Technology.
What are the top holdings of the SIZE ETF and FEX ETF?
SIZE top holdings include US7731211089, ECHOSTAR and WESTERN DIGITAL. FEX holds in its top three: SEAGATE TECHNOLOGY HOLDINGS PLC, KYG3730V1059 and SCHLUMBERGER.
Which ETF is more diversified: SIZE or FEX?
SIZE holds 544 securities with 4.05% of its assets in the top 15. FEX has 374 securities and a top 15 weight of 7.76%.
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