PlainIndex
Menu

ETF comparison

IWM vs SMLF

US Small Cap vs Multi-Factor.

iShares Russell 2000 ETF · iShares U.S. Small-Cap Equity Factor ETF

Holdings overlap

Weighted by ISIN/CUSIP
37.3 %

510 positions appear in both funds. Buying equal dollars of IWM and SMLF would leave roughly 37.3% of each dollar exposed to the same underlying securities.

IWM only 76.8% Shared 37.3% SMLF only 69.4%
In IWM only
1,434 positions
Shared
510 positions
In SMLF only
380 positions

Side by side

IWM

iShares Russell 2000 ETF

iShares · US Small Cap

88 composite / 100
Expense ratio
0.19%
Net assets
$82.97B
TTM yield
0.90%
Top-10 conc.
19.5%
SMLF

iShares U.S. Small-Cap Equity Factor ETF

iShares · Multi-Factor

86 composite / 100
Expense ratio
0.15%
Net assets
$4.18B
TTM yield
1.01%
Top-10 conc.
15.3%

Sub-score comparison

81
Cost
85
89
Tax efficiency
86
100
Liquidity
84
86
Concentration
92
—
Tracking quality
—
IWM sub-score SMLF

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

SMLF is 4 bps cheaper than IWM. On a $100,000 position that's about $40/yr more in fees for IWM.

Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IWM vs SMLF.

Top shared holdings

510 shared in total
# Holding In IWM In SMLF Overlap
1 BlackRock Funds III 14.24% 7.81% 7.81%
2 Credo Technology Group Holding Ltd. 0.51% 0.43% 0.43%
3 Sterling Infrastructure, Inc. 0.41% 0.69% 0.41%
4 SPX Technologies, Inc. 0.33% 0.36% 0.33%
5 Rambus, Inc. 0.32% 0.42% 0.32%
6 Fabrinet 0.64% 0.29% 0.29%
7 TTM Technologies, Inc. 0.34% 0.27% 0.27%
8 Modine Manufacturing Co. 0.39% 0.27% 0.27%
9 Guardant Health, Inc. 0.39% 0.27% 0.27%
10 Bridgebio Pharma, Inc. 0.40% 0.26% 0.26%
11 Planet Labs PBC 0.26% 0.29% 0.26%
12 EchoStar Corp. 0.54% 0.26% 0.26%

Only in IWM

1,434 total
  • Bloom Energy Corp. 1.01%
  • Chart Industries, Inc. 0.32%
  • American Healthcare REIT, Inc. 0.29%
  • CareTrust REIT, Inc. 0.28%
  • Old National Bancorp 0.26%
  • Viavi Solutions, Inc. 0.26%
  • FirstCash Holdings, Inc. 0.25%
  • ESCO Technologies, Inc. 0.25%
  • Vaxcyte, Inc. 0.25%
  • Ormat Technologies, Inc. 0.23%

Only in SMLF

380 total
  • EMCOR Group, Inc. 1.33%
  • Jabil, Inc. 0.88%
  • nVent Electric plc 0.84%
  • Interactive Brokers Group, Inc. 0.78%
  • Mueller Industries, Inc. 0.70%
  • Flex Ltd. 0.68%
  • Tapestry, Inc. 0.66%
  • Reliance, Inc. 0.52%
  • United Therapeutics Corp. 0.51%
  • Williams-Sonoma, Inc. 0.50%

Open IWM or SMLF at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.

Holdings overlap is the sum of min(weight_a, weight_b) over positions matched on ISIN (CUSIP fallback). Methodology: see /methodology/.

Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.