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ONEOvsSIZEETF Comparison

ETF 1
ONEO

State Street SPDR Russell 1000 Momentum Focus ETF

This fund is part of
US Multi-Factor
-0.38%
VS
ETF 2
SIZE

iShares MSCI USA Size Factor ETF

This fund is part of
US Large Cap
-0.42%

State Street 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 Information Technology, Industrials 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 10.01% year-to-date (YTD) with -$26M in YTD flows. SIZE performs worse with 5.03% YTD performance, and -$452K 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.

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ONEO vs SIZE performance and flow charts

Performance

0246810%Mar 27Apr 6Apr 13Apr 20Apr 27

Cumulative Flows

0 M2 M4 M6 M8 MMar 27Apr 6Apr 13Apr 20Apr 27

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Historic performance and flows
Data as of 04/28/2026
1M3MYTD1Y3Y5Y
Perf.
ONEO
SIZE
+9.02%+8.35%
+4.62%+1.76%
+10.01%+5.03%
+27.15%+21.34%
+57.49%+52.85%
+55.41%+44.35%
Flows
ONEO
SIZE
-+$8M
-$1M-$452K
-$26M-$452K
-$74M+$31M
-$171M-$33M
-$298M-$715M
Volatility and drawdown
3M1Y3Y5Y
Volatility
ONEO
SIZE
+15.24%+14.49%
+13.08%+12.59%
+15.25%+14.67%
+17.35%+17.10%
Max drawdown
ONEO
SIZE
-7.42%-7.92%
-7.42%-7.92%
-19.59%-18.57%
-22.42%-24.05%
Max drawdown duration
ONEO
SIZE
48d49d
48d49d
260d219d
757d820d
Trading data

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ONEO
SIZE
Last sale
4/28/2026 at 2:51 PM
$141.81
$167.89
Previous close
04/28/2026
$143.09
$169.34
Consolidated volume
04/28/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of March 31, 2026
1-year trailing difference

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ONEO
SIZE
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 4/28/2026 at 2:51 PM
Live
Closed
ONEO
SIZE
Last price
$141.81
$167.89
1D performance
-0.89%
-0.86%
AuM$26.94 M$406.03 M
E/R0.2%0.15%
Characteristics
ONEO
SIZE
Management strategyPassivePassive
ProviderState Street Investment ManagementiShares
BenchmarkRussell 1000 Momentum Focused Factor IndexMSCI USA Low Size Index
N° of holdings840503
Asset classEquitiesEquities
Trailing 12m distribution yield
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Inception dateDecember 2, 2015April 16, 2013
ESGNoNo
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Exposure

Countries

ONEO
USA
91.79%
Other
8.21%
SIZE
USA
93.01%
Other
6.99%

Sectors

ONEO
Information Techn.
16.91%
Industrials
16.76%
Consumer Discreti.
12.08%
Health Care
9.78%
Financials
9.14%
Other
35.34%
SIZE
Information Techn.
16.23%
Industrials
15.4%
Financials
12.22%
Health Care
9.66%
Consumer Discreti.
9.26%
Other
37.23%
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Diversification

ONEO

Total weight of top 15 holdings out of 15

9.64%
SIZE

Total weight of top 15 holdings out of 15

4.62%

Top 15 holdings

Data as of March 31, 2026
ONEO
WESTERN DIGITAL
1.16%
MCKESSON
0.80%
MONOLITHIC POWER SYSTEMS
0.71%
FLEX LTD
0.68%
MARATHON PETROLEUM
0.65%
TECHNIPFMC PLC
0.65%
JABIL CIRCUIT
0.63%
DOLLAR GENERAL
0.62%
VALERO ENERGY
0.57%
US74743L1008
0.56%
TERADYNE
0.56%
MICRON TECHNOLOGY
0.54%
US5128073062
0.53%
KLA CORPORATION
0.51%
ALTRIA GROUP
0.49%
SIZE
DOW INC
0.37%
LYONDELLBASELL INDUSTRIES
0.37%
CIENA
0.36%
ECHOSTAR
0.33%
TERADYNE
0.32%
WESTERN DIGITAL
0.31%
CF INDUSTRIES HOLDINGS
0.31%
KEYSIGHT TECHNOLOGIES
0.29%
OCCIDENTAL U
0.29%
CORNING
0.28%
HALLIBURTON
0.28%
TARGA RESOURCS
0.28%
ENTEGRIS
0.28%
DEVON ENERGY
0.28%
TEXAS PACIFIC LAND CORP
0.28%
Frequently asked questions about ONEO and SIZE

How have the ONEO and SIZE ETFs performed in 2026?

As of April 28, 2026, ONEO is up 10.01% year-to-date (YTD), while SIZE has returned 5.03%. 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 -$452K for SIZE.

Which ETF is more volatile: ONEO or SIZE?

Over the past year, ONEO had a volatility of 13.08%, while SIZE experienced 12.59%.

Which ETF is bigger: ONEO or SIZE?

As of April 28, 2026, ONEO holds $26.94 M in assets under management (AUM), while SIZE manages $406.03 M.

What sectors do the ONEO and SIZE ETFs invest in?

ONEO leans toward sectors like Information Technology, Industrials 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 MONOLITHIC POWER SYSTEMS. SIZE holds in its top three: DOW INC, LYONDELLBASELL INDUSTRIES and CIENA.

Which ETF is more diversified: ONEO or SIZE?

ONEO holds 900 securities with 9.64% of its assets in the top 15. SIZE has 538 securities and a top 15 weight of 4.62%.

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Latest news about ONEO & SIZE
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December 21, 2022
SIZE
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