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ETF comparison

IVV vs IWS

US Large Cap vs US Mid Cap.

iShares Core S&P 500 ETF · iShares Russell Mid-Cap Value ETF

Holdings overlap

Weighted by ISIN/CUSIP
11.5 %

278 positions appear in both funds. Buying equal dollars of IVV and IWS would leave roughly 11.5% of each dollar exposed to the same underlying securities.

IVV unmatched 88.3% Shared 11.5% IWS unmatched 88.3%

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 IVV only
226 positions
Shared
278 positions
In IWS only
442 positions

Side by side

IVV

iShares Core S&P 500 ETF

iShares · US Large Cap

91 composite / 100
Expense ratio
0.030%
Net assets
$881.27B
TTM yield
1.10%
Top-10 conc.
36.4%
IWS

iShares Russell Mid-Cap Value ETF

iShares · US Mid Cap

88 composite / 100
Expense ratio
0.23%
Net assets
$14.78B
TTM yield
1.31%
Top-10 conc.
7.1%

Sub-score comparison

97
Cost
77
88
Tax efficiency
88
100
Liquidity
100
62
Concentration
100
—
Tracking quality
—
IVV sub-score IWS

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

Cost difference

IVV is 20 bps cheaper than IWS. On a $100,000 position that's about $200/yr more in fees for IWS.

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 IVV vs IWS.

Top shared holdings

278 shared in total
# Holding In IVV In IWS Overlap
1 Robinhood Markets, Inc. 0.12% 0.13% 0.12%
2 Royal Caribbean Cruises Ltd. 0.12% 0.34% 0.12%
3 Coherent Corp. 0.12% 0.54% 0.12%
4 Marathon Petroleum Corp. 0.12% 0.36% 0.12%
5 United Rentals, Inc. 0.11% 0.53% 0.11%
6 Phillips 66 0.10% 0.62% 0.10%
7 Warner Bros Discovery, Inc. 0.10% 0.63% 0.10%
8 Kinder Morgan, Inc. 0.10% 0.61% 0.10%
9 Allstate Corp. (The) 0.09% 0.60% 0.09%
10 Delta Air Lines, Inc. 0.09% 0.56% 0.09%
11 Keysight Technologies, Inc. 0.09% 0.25% 0.09%
12 Hewlett Packard Enterprise Co. 0.09% 0.59% 0.09%

Only in IVV

226 total
  • NVIDIA Corp. 7.51%
  • Apple, Inc. 6.58%
  • Microsoft Corp. 4.29%
  • Amazon.com, Inc. 3.61%
  • Alphabet, Inc. 3.25%
  • Broadcom, Inc. 2.77%
  • Alphabet, Inc. 2.59%
  • Micron Technology, Inc. 2.02%
  • Meta Platforms, Inc. 1.92%
  • Tesla, Inc. 1.83%

Only in IWS

442 total
  • CHENIERE ENERGY INC 0.46%
  • FERGUSON ENTERPRISES INC 0.42%
  • SUNBELT RENTALS HOLDINGS INC 0.30%
  • MKS INC 0.27%
  • ILLUMINA INC 0.26%
  • TWILIO INC 0.25%
  • MARKEL GROUP INC 0.24%
  • ENTEGRIS INC 0.23%
  • ROYALTY PHARMA PLC 0.23%
  • OKTA INC 0.22%

Related comparisons

More comparisons with IVV

More comparisons with IWS

Percentages are holdings overlap with the named fund.

Open IVV or IWS 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.