Keep tabs on your favorite ETFs with a personalized weekly tracker. Create a Watchlist now →
ONEOvsSIZEETF Comparison
SPDR Russell 1000 Momentum Focus ETF (ONEO) belongs to the US Multi-Factor segment. iShares MSCI USA Size Factor ETF (SIZE) is part of the US Large Cap segment. ONEO's top 3 sector exposures are Industrials, Information Technology and Consumer Discretionary. In contrast, SIZE's top sector exposures are Information Technology, Industrials and Financials. ONEO is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.15% for SIZE. ONEO is up 4.77% year-to-date (YTD) with -$26M in YTD flows. SIZE performs worse with 1.05% YTD performance, and -$8M in YTD flows. Run a side-by-side ETF comparison of ONEO and SIZE below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
ONEO vs SIZE performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ONEO SIZE | -2.85%-3.29% | +3.94%+0.33% | +4.77%+1.05% | +19.39%+14.04% | +53.91%+50.90% | +59.67%+48.31% |
| Flows | ONEO SIZE | -$1M-$8M | -$74M+$8M | -$26M-$8M | -$74M+$29M | -$247M-$47M | -$298M-$670M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ONEO SIZE | +13.06%+12.14% | +17.76%+17.53% | +15.34%+14.74% | +17.30%+17.04% |
| Max drawdown | ONEO SIZE | -3.92%-3.59% | -12.69%-13.31% | -19.59%-18.57% | -22.42%-24.05% |
| Max drawdown duration | ONEO SIZE | 12d12d | 46d46d | 260d219d | 757d820d |
ONEO | SIZE | |
Last sale 3/11/2026 at 1:30 PM | $134.95 | $162.80 |
| Previous close 03/10/2026 | $135.48 | $163.29 |
| Consolidated volume 03/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Create an account to view replication metrics
ONEO | SIZE | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
ONEO | SIZE | |
|---|---|---|
| Last price | $134.95 | $162.80 |
| 1D performance | -0.39% | -0.30% |
| AuM | $25.75 M | $383.84 M |
| E/R | 0.2% | 0.15% |
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 ONEO and SIZE ETFs performed in 2026?
As of March 10, 2026, ONEO is up 4.77% year-to-date (YTD), while SIZE has returned 1.05%. That puts ONEO better performer ahead so far this year.
Which ETF is attracting more investor money: ONEO or SIZE?
Year-to-date, the ONEO ETF saw -$26M in flows, compared to -$8M for SIZE.
Which ETF is more volatile: ONEO or SIZE?
Over the past year, ONEO had a volatility of 17.76%, while SIZE experienced 17.53%.
Which ETF is bigger: ONEO or SIZE?
As of March 10, 2026, ONEO holds $25.75 M in assets under management (AUM), while SIZE manages $383.84 M.
What sectors do the ONEO and SIZE ETFs invest in?
ONEO leans toward sectors like Industrials, Information Technology and Consumer Discretionary. Meanwhile, SIZE focuses on Information Technology, Industrials and Financials.
What are the top holdings of the ONEO ETF and SIZE ETF?
ONEO top holdings include WESTERN DIGITAL, MCKESSON and DOLLAR GENERAL. SIZE holds in its top three: US7731211089, ECHOSTAR and WESTERN DIGITAL.
Which ETF is more diversified: ONEO or SIZE?
ONEO holds 902 securities with 9.21% of its assets in the top 15. SIZE has 544 securities and a top 15 weight of 4.05%.
Calamos Investments Powers the Next Phase of the Autocallable Revolution
Join J.P. Morgan’s Bram Kaplan, Head of Americas Equity Derivatives Strategy and Matt Kaufman from Calamos Investments as they dive into the growing global opportunity in autocallable income—an increasingly dominant strategy within structured products, now available through ETFs.
Accepted for 1 CE Credit
