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ETF comparison

ITOT vs IWO

US Total Market vs US Small Cap.

iShares Core S&P Total U.S. Stock Market ETF · iShares Russell 2000 Growth ETF

Holdings overlap

Weighted by ISIN/CUSIP
2.8 %

813 positions appear in both funds. Buying equal dollars of ITOT and IWO would leave roughly 2.8% of each dollar exposed to the same underlying securities.

ITOT unmatched 97.0% Shared 2.8% IWO unmatched 96.9%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In ITOT only
1,685 positions
Shared
813 positions
In IWO only
320 positions

Side by side

ITOT

iShares Core S&P Total U.S. Stock Market ETF

iShares · US Total Market

92 composite / 100
Expense ratio
0.030%
Net assets
$95.86B
TTM yield
1.02%
Top-10 conc.
32.1%
IWO

iShares Russell 2000 Growth ETF

iShares · US Small Cap

88 composite / 100
Expense ratio
0.24%
Net assets
$14.11B
TTM yield
0.49%
Top-10 conc.
6.0%

Sub-score comparison

97
Cost
76
88
Tax efficiency
90
100
Liquidity
100
68
Concentration
100
—
Tracking quality
—
ITOT sub-score IWO

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

Cost difference

ITOT is 21 bps cheaper than IWO. On a $100,000 position that's about $210/yr more in fees for IWO.

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 ITOT vs IWO.

Top shared holdings

813 shared in total
# Holding In ITOT In IWO Overlap
1 Moog, Inc. 0.02% 0.73% 0.02%
2 Cytokinetics, Inc. 0.02% 0.07% 0.02%
3 Hut 8 Corp. 0.02% 0.38% 0.02%
4 Argan, Inc. 0.02% 0.66% 0.02%
5 BrightSpring Health Services, Inc. 0.02% 0.68% 0.02%
6 MaxLinear, Inc. 0.01% 0.66% 0.01%
7 UMB Financial Corp. 0.01% 0.05% 0.01%
8 Krystal Biotech, Inc. 0.01% 0.58% 0.01%
9 Riot Platforms, Inc. 0.01% 0.39% 0.01%
10 Old National Bancorp 0.01% 0.06% 0.01%
11 ESCO Technologies, Inc. 0.01% 0.56% 0.01%
12 D-Wave Quantum, Inc. 0.01% 0.53% 0.01%

Only in ITOT

1,685 total
  • NVIDIA Corp. 6.63%
  • Apple, Inc. 5.81%
  • Microsoft Corp. 3.79%
  • Amazon.com, Inc. 3.19%
  • Alphabet, Inc. 2.86%
  • Broadcom, Inc. 2.45%
  • Alphabet, Inc. 2.29%
  • Micron Technology, Inc. 1.78%
  • Meta Platforms, Inc. 1.69%
  • Tesla, Inc. 1.62%

Only in IWO

320 total
  • JFrog Ltd. 0.59%
  • Xenon Pharmaceuticals, Inc. 0.35%
  • Constellium SE 0.26%
  • Energy Fuels, Inc. 0.22%
  • Marex Group plc 0.17%
  • Kiniksa Pharmaceuticals International plc 0.17%
  • Establishment Labs Holdings, Inc. 0.14%
  • Super Group SGHC Ltd. 0.13%
  • Novagold Resources, Inc. 0.12%
  • Webull Corp. 0.12%

Percentages are holdings overlap with the named fund.

Open ITOT or IWO at a brokerage

Both funds trade commission-free at major US brokerages.

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.