SIZE vs SPMO: Grades, Fees and Holdings Compared

iShares MSCI USA Size Factor ETF

SIZEANYSE Arca

Invesco S&P 500 Momentum ETF

SPMOBNYSE Arca

Overlap

15.7%by weight

Expense ratio

SPMO −0.02pt a year

SIZE0.15%SPMO0.13%

Avg volume · 30D

SPMO 390.7×the volume

SIZE5.21KSPMO2.04M

10Y return · a year

SPMO +7.1pt

SIZE+12.0%SPMO+19.1%

SIZE vs SPMO Performance

Oct 29, 2021 – Oct 30, 2026

+43.6%SIZE+122.4%SPMO

Expense ratio: SIZE 0.15%; SPMO 0.13%, better
Fund size: SIZE $433M; SPMO $21.4B
1Y total return: SIZE +13.8%, better; SPMO +12.9%
Yield (12M): SIZE 1.37%, better; SPMO 0.81%
Holdings: SIZE 518; SPMO 102
Avg volume (30D): SIZE 5.21K sh; SPMO 2.04M sh, better
NAV per share: SIZE $180.22; SPMO $136.23
52W range

ETF.net Grade

Pillar letters and Scores for SIZE, SPMO, with each pillar’s weight
Pillar	SIZE	SPMO
Cost30% weight	A81	A90Higher
Mission25% weight	A93Higher	B57
Risk15% weight	B66Higher	D36
Tradability15% weight	F23	A94Higher
Holdings10% weight	A88Higher	D25
Durability5% weight	B57	A82Higher

Rank among US Factor Index funds

How we build Categories ›

Same Category. SIZE and SPMO are both graded against the same 30 US Factor Index funds, so their Grades compare head to head.

US Factor Index⁠

Category · 30 funds

See all 30 ›

SIZE ranks 3rd and SPMO 7th of 30 funds in the US Factor Index Category.

Rank 1AMGVVanguard Morningstar Mega Cap Value ETFScore 78
Rank 2AUSCAXtrackers MSCI USA Climate Action Equity ETFScore 74
Rank 3ASIZEiShares MSCI USA Size Factor ETFScore 72
Rank 4ADXUVU.S. Vector Equity Portfolio ETF Class SharesScore 70
Rank 6BDGRWWisdomTree U.S. Quality Dividend Growth FundScore 68
Rank 7BSPMOInvesco S&P 500 Momentum ETFScore 67
Rank 8BPRFInvesco RAFI US 1000 ETFScore 66

Our read on each fund

ETF.net Research

SIZEAiShares MSCI USA Size Factor ETF

SPMOBInvesco S&P 500 Momentum ETF

In short

SIZE The 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.

SPMO Momentum without leaving the S&P 500. SPMO ranks the index's members on momentum and keeps roughly the top 100, charging 0.13% for a rules-based bet on whatever has already been working.

Stated mandate

SIZE The fund seeks to track an index of U.S. stocks that have smaller market capitalizations relative to their peers.

SPMO The fund tracks the S&P 500 Momentum Index before fees and expenses. It generally invests at least 90% of assets in index securities, which are selected from the S&P 500 based on high momentum scores.

Why people hold it

SIZE 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

SPMO 0.13% a year against a 0.69% median for momentum funds, undercutting iShares' MTUM (0.15%) and matching Vanguard's VFMO (0.13%).
The rulebook is public and tight: at least 90% of assets in S&P 500 Momentum Index names, picked on momentum scores. No stockpicker sitting on top of the screen.invesco.com
One of the more actively traded funds in its niche and a multi-billion-dollar book, so orders usually meet a deep market rather than a thin one.
Live since 2015 with Invesco behind it, and among the stronger overall builds in the US momentum group.

Worth knowing

SIZE 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.

SPMO Roughly 100 names out of 500 means concentration arrives as a side effect: whichever sector has been leading can dominate, and the fund can look little like the S&P 500.
Momentum is a backward-looking screen. It holds the recent leaders until the index reshuffles, which is exactly when the market turns hardest against trend followers.invesco.com
Distributions land quarterly and are a byproduct of what the screen owns, not the point of the fund.

Full SIZE profile⁠

Full SPMO profile⁠

SIZE vs SPMO Holdings

How SIZE and SPMO differ

Overlap by weight

15.7%

Shared holdings make up 99.3% of SPMO and 17.2% of SIZE.

Level by level

Holdings91 in both15.7%
Sector11 Sectors59.5%
Countryby domicile98.4%
Asset classEquity100%

Sector

Sector weights in SIZE and SPMO, widest gap first
Sector	More in SIZEMore in SPMO	SIZE	SPMO
Technology	SPMO +32.3 points	17.9%	50.2%
Industrials	SIZE +9.0 points	16.2%	7.2%
Financials	SIZE +9.0 points	16.1%	7.1%
Consumer Discretionary	SIZE +7.5 points	9.0%	1.5%
Communication	SPMO +5.6 points	3.3%	8.9%
Utilities	SIZE +5.0 points	5.2%	0.2%
Materials	SIZE +3.7 points	4.8%	1.1%
Consumer Staples	SIZE +3.0 points	5.7%	2.7%
Energy	SPMO +2.6 points	4.3%	6.9%
Real Estate	SIZE +2.1 points	4.5%	2.4%
Health Care	SIZE +1.1 points	12.8%	11.7%

Country, concentration and asset class

Country by domicile

Country weights in SIZE and SPMO, widest gap first
Country	More in SIZEMore in SPMO	SIZE	SPMO
United States	SPMO +1.5 points	97.7%	99.2%
United Kingdom	SIZE +0.6 points	0.6%	0.0%
Other countries (7)	SIZE +0.8 points	1.6%	0.8%

Concentration

Weight in the 10 largest Holdings

SIZE3.7%
SPMO50.1%

Securities held

SIZE515
SPMO100

Asset class

SIZE: Equity
SPMO: Equity

Holdings

Only in SIZE424
In both91
Only in SPMO9

Only in SIZE

424 securities, 82.6% of SIZE by weight

Okta Class A0.47%
Atlassian Corp Class A0.42%
Natera0.40%
Sharkninja0.39%
Veeva Systems Class A0.36%
Vivmark Residential0.36%
Snowflake0.33%
Illumina Inc0.32%
Everpure Inc Class A0.32%
Best Buy0.32%
Mettler Toledo0.30%
Agilent Technologies Inc0.30%
Iqvia Holdings Inc0.29%
Cdw0.29%
Workday Class A0.29%
Crowdstrike Holdings Class A0.29%
Dollar Tree Inc0.28%
Williams Sonoma Inc0.28%
Thermo Fisher Scientific0.27%
Global Payments Inc0.27%
Labcorp Holdings0.27%
Estee Lauder Inc Class A0.27%
Regeneron Pharmaceuticals0.27%
Jacobs Solutions Inc0.27%
Roper Technologies0.27%
Toast Class A0.27%
Hp Inc0.26%
Samsara Class A0.26%
Accenture PLC Class A0.26%
Waters Corp0.26%
Ptc0.26%
West Pharmaceutical Services0.26%
Zscaler0.26%
Genuine Parts0.26%
Corebridge Financial Inc0.25%
Ulta Beauty Inc0.25%
Expedia Group0.25%
Arthur J Gallagher0.25%
Becton Dickinson0.25%
Humana0.25%
Amcor PLC0.25%
International Flavors & Fragrances0.25%
Amgen Inc0.25%
Danaher0.25%
Cloudflare Class A0.25%
Cheniere Energy0.25%
Veralto0.25%
Revolution Medicines0.24%
Royalty Pharma PLC Class A0.24%
Masco0.24%

Only in SPMO

9 securities, 0.7% of SPMO by weight

Viatris Inc0.17%
Host Hotels & Resorts Inc0.12%
APA Corp0.10%
Assurant Inc0.08%
Invesco Ltd0.05%
Federal Realty Investment Trust0.05%
Invesco Government & Agency Portfolio0.05%
Franklin Templeton Inc0.05%
DaVita Inc0.03%

Weight gaps

All 91 Holdings in both funds, largest gap first.

Holding weights in SIZE and SPMO, widest gap first
Holding	More in SIZEMore in SPMO	SIZE	SPMO
AppleAAPL	SPMO +9.84 points	0.18%	10.02%
Micron TechnologyMU	SPMO +8.65 points	0.21%	8.86%
Advanced Micro DevicesAMD	SPMO +5.34 points	0.20%	5.54%
Johnson & JohnsonJNJ	SPMO +4.78 points	0.20%	4.98%
Intel CorporationINTC	SPMO +4.42 points	0.10%	4.52%
Alphabet Class AGOOGL	SPMO +4.16 points	0.06%	4.22%
Exxonmobil Holdings CorpXOM	SPMO +3.45 points	0.19%	3.64%
Alphabet Class CGOOG	SPMO +3.36 points	0.05%	3.41%
Lam ResearchLRCX	SPMO +2.31 points	0.15%	2.46%
Cisco Systems IncCSCO	SPMO +2.32 points	0.15%	2.47%
Applied Material IncAMAT	SPMO +2.27 points	0.16%	2.43%
SandiskSNDK	SPMO +2.10 points	0.14%	2.24%
Merck & Co IncMRK	SPMO +2.06 points	0.23%	2.29%
Seagate Technology Holdings PLCSTX	SPMO +1.68 points	0.15%	1.83%
UnitedHealth GroupUNH	SPMO +1.65 points	0.18%	1.83%
Caterpillar IncCAT	SPMO +1.59 points	0.12%	1.71%
Coca-ColaKO	SPMO +1.53 points	0.20%	1.73%
Western Digital CorpWDC	SPMO +1.51 points	0.14%	1.65%
Palo Alto NetworksPANW	SPMO +1.50 points	0.27%	1.77%
RtxRTX	SPMO +0.98 points	0.20%	1.18%
Morgan StanleyMS	SPMO +0.96 points	0.17%	1.13%
Goldman Sachs GroupGS	SPMO +0.96 points	0.17%	1.13%
KlaKLAC	SPMO +0.93 points	0.16%	1.09%
Analog DevicesADI	SPMO +0.88 points	0.18%	1.06%
Lumentum HoldingsLITE	SPMO +0.77 points	0.17%	0.94%
CitigroupC	SPMO +0.75 points	0.18%	0.93%
Marvell TechnologyMRVL	SPMO +0.71 points	0.20%	0.91%
Dell Technologies Inc Class CDELL	SPMO +0.70 points	0.32%	1.02%
WelltowerWELL	SPMO +0.69 points	0.19%	0.88%
Valero Energy CorpVLO	SPMO +0.65 points	0.28%	0.93%
Cvs HealthCVS	SPMO +0.53 points	0.17%	0.70%
Marathon PetroleumMPC	SPMO +0.50 points	0.31%	0.81%
Bristol Myers SquibbBMY	SPMO +0.49 points	0.19%	0.68%
Bank of New York Mellon CorpBNY	SPMO +0.47 points	0.19%	0.66%
Prologis ReitPLD	SPMO +0.43 points	0.16%	0.59%
ChubbCB	SPMO +0.41 points	0.20%	0.61%
Phillips 66PSX	SPMO +0.41 points	0.28%	0.69%
CorningGLW	SPMO +0.38 points	0.12%	0.50%
Ross Stores IncROST	SPMO +0.37 points	0.20%	0.57%
Lockheed MartinLMT	SPMO +0.36 points	0.22%	0.58%
CienaCIEN	SPMO +0.36 points	0.11%	0.47%
Us BancorpUSB	SPMO +0.30 points	0.20%	0.50%
Parker-HannifinPH	SPMO +0.29 points	0.19%	0.48%
CsxCSX	SPMO +0.29 points	0.20%	0.49%
Fedex CorpFDX	SPMO +0.28 points	0.15%	0.43%
Howmet AerospaceHWM	SPMO +0.27 points	0.14%	0.41%
Quanta Services IncPWR	SPMO +0.26 points	0.16%	0.42%
Cummins IncCMI	SPMO +0.25 points	0.14%	0.39%
Travelers CompaniesTRV	SPMO +0.23 points	0.24%	0.47%
Pnc Financial Services GroupPNC	SPMO +0.24 points	0.19%	0.43%
Simon Property Group Reit IncSPG	SPMO +0.22 points	0.20%	0.42%
Johnson Controls International PLCJCI	SPMO +0.21 points	0.20%	0.41%
Monster BeverageMNST	SPMO +0.20 points	0.20%	0.40%
TeradyneTER	SPMO +0.19 points	0.16%	0.35%
Targa ResourcesTRGP	SPMO +0.19 points	0.21%	0.40%
Hewlett Packard EnterpriseHPE	SPMO +0.19 points	0.31%	0.50%
Marriott International Class AMAR	SPMO +0.19 points	0.20%	0.39%
General MotorsGM	SPMO +0.18 points	0.22%	0.40%
NucorNUE	SPMO +0.18 points	0.23%	0.41%
Comfort Systems UsaFIX	SPMO +0.18 points	0.12%	0.30%
Keysight TechnologiesKEYS	SPMO +0.16 points	0.16%	0.32%
Monolithic Power Systems IncMPWR	SPMO +0.15 points	0.15%	0.30%
Incyte CorpINCY	SIZE +0.14 points	0.24%	0.10%
NordsonNDSN	SIZE +0.14 points	0.23%	0.09%
IdexIEX	SIZE +0.13 points	0.22%	0.09%
Expeditors International of WashinEXPD	SIZE +0.13 points	0.24%	0.11%
CoherentCOHR	SPMO +0.12 points	0.11%	0.23%
EvergyEVRG	SIZE +0.12 points	0.20%	0.08%
Quest Diagnostics IncDGX	SIZE +0.12 points	0.25%	0.13%
State StreetSTT	SPMO +0.11 points	0.21%	0.32%
LoewsL	SIZE +0.11 points	0.20%	0.09%
Netapp IncNTAP	SIZE +0.10 points	0.31%	0.21%
Dupont De NemoursDD	SIZE +0.10 points	0.19%	0.09%
Target CorpTGT	SPMO +0.10 points	0.22%	0.32%
BiogenBIIB	SIZE +0.08 points	0.25%	0.17%
AflacAFL	SPMO +0.08 points	0.19%	0.27%
Principal Financial Group IncPFG	SIZE +0.08 points	0.21%	0.13%
Echostar Class AECHO	SIZE +0.07 points	0.13%	0.06%
Jb Hunt Transport ServicesJBHT	SIZE +0.06 points	0.16%	0.10%
Flex LtdFLEX	SPMO +0.05 points	0.13%	0.18%
Ventas ReitVTR	SPMO +0.05 points	0.18%	0.23%
Westinghouse Air Brake TechnologieWAB	SPMO +0.05 points	0.20%	0.25%
Citizens Financial Group IncCFG	SIZE +0.05 points	0.20%	0.15%
Northern TrustNTRS	SIZE +0.04 points	0.19%	0.15%
Edison InternationalEIX	SIZE +0.04 points	0.16%	0.12%
Cardinal HealthCAH	SPMO +0.04 points	0.23%	0.27%
Steel Dynamics IncSTLD	SPMO +0.02 points	0.21%	0.23%
Caseys General Stores IncCASY	SIZE +0.01 points	0.15%	0.14%
Centene CorpCNC	SPMO +0.01 points	0.22%	0.23%
Delta Air LinesDAL	Same weight	0.22%	0.22%
Archer Daniels MidlandADM	SPMO +0.01 points	0.18%	0.19%

All 515 SIZE holdings⁠All 100 SPMO holdings⁠

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

SIZE vs SPMO Cost

Overpaying SIZE vs SPMO

$411

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

SIZE 0.15%
$3,137
SPMO 0.13%
$2,726

Amount$10,000

Years30 years

Cost over time

SIZE 0.15%
SPMO 0.13%
Overpaying

Year by year

Year	SIZE	SPMO	Overpaying
10	$274	$238	$36
20	$1,071	$930	$141
30	$3,137	$2,726	$411

Expense ratio

0.15%SIZE
0.13%SPMO, cheaper

SPMO0.13%SIZE0.15%

0.05%0.63%

Middle half of US Factor Index funds
Median 0.30%

SPMO 4th cheapest of 30 funds

SIZE 5th cheapest of 30 funds

SIZE vs SPMO Dividends

Last 12 months to Oct 30, 2026

Yield (12M): SIZE 1.37%, better; SPMO 0.81%
Payout (12M): SIZE $2.47; SPMO $1.10
Last payment: SIZE $0.65; SPMO $0.24
Ex-dividend: SIZE Sep 15, 2026; SPMO Sep 21, 2026
Paid on: SIZE Sep 18, 2026; SPMO Sep 25, 2026
Frequency: SIZE Quarterly; SPMO Quarterly

Distribution history

Per share, 2017 to 2026, same scale for both

SIZEQuarterly · 41 paymentsAll SIZE payments⁠

SPMOQuarterly · 38 paymentsAll SPMO payments⁠

SIZE vs SPMO Risk

Fall from peak · 5 years

SIZE
SPMO

Risk facts

VolatilityStd dev, 3 years: SIZE 13.0%, betterSPMO 21.9%
Return per unit of riskSharpe ratio, 3 years: SIZE 1.06SPMO 1.30, better
Worst fallMax drawdown, 5 years: SIZE −24.0%SPMO −22.7%, better
Market sensitivityBeta, 5 years: SIZE 0.97SPMO 1.28; Market = 1

Popular comparisons

SIZEAvsMGVA
iShares MSCI USA Size Factor ETF · Vanguard Morningstar Mega Cap Value ETF
Expense ratio
0.15% · 0.05%
Category
SPMOBvsMGVA
Invesco S&P 500 Momentum ETF · Vanguard Morningstar Mega Cap Value ETF
Expense ratio
0.13% · 0.05%
Category
SIZEAvsUSCAA
iShares MSCI USA Size Factor ETF · Xtrackers MSCI USA Climate Action Equity ETF
Expense ratio
0.15% · 0.07%
Category
SPMOBvsUSCAA
Invesco S&P 500 Momentum ETF · Xtrackers MSCI USA Climate Action Equity ETF
Expense ratio
0.13% · 0.07%
Category
SIZEAvsDXUVA
iShares MSCI USA Size Factor ETF · U.S. Vector Equity Portfolio ETF Class Shares
Expense ratio
0.15% · 0.25%
Category
SPMOBvsDXUVA
Invesco S&P 500 Momentum ETF · U.S. Vector Equity Portfolio ETF Class Shares
Expense ratio
0.13% · 0.25%
Category