Of every dollar in ITOT and every dollar in SPY, 88.10% reaches the same companies. The two funds share 504 holdings, and this page lists the heaviest of them with each fund's own weight.
The heaviest companies both funds hold. The shared figure is the smaller of the two weights, which is the part of each dollar that lands in the same place either way.
#
Company
ITOT
SPY
1
NVIDIA Corp.
6.63%
7.52%
2
Apple, Inc.
5.81%
6.59%
3
Microsoft Corp.
3.79%
4.30%
4
Amazon.com, Inc.
3.19%
3.62%
5
Alphabet, Inc.US02079K3059
2.86%
3.25%
6
Broadcom, Inc.
2.45%
2.77%
7
Alphabet, Inc.US02079K1079
2.29%
2.59%
8
Micron Technology, Inc.
1.78%
2.02%
9
Meta Platforms, Inc.
1.69%
1.92%
10
Tesla, Inc.
1.62%
1.84%
11
Eli Lilly & Co.
1.30%
1.47%
12
Advanced Micro Devices, Inc.
1.30%
1.47%
13
Berkshire Hathaway, Inc.
1.25%
1.42%
14
JPMorgan Chase & Co.
1.20%
1.36%
15
Intel Corp.
0.90%
1.02%
16
Johnson & Johnson
0.84%
0.95%
17
Applied Materials, Inc.
0.78%
0.89%
18
Visa, Inc.
0.78%
0.88%
19
Exxon Mobil Corp.
0.77%
0.88%
20
Lam Research Corp.
0.74%
0.84%
21
Walmart, Inc.
0.68%
0.77%
22
Caterpillar, Inc.
0.67%
0.76%
23
Cisco Systems, Inc.
0.63%
0.72%
24
AbbVie, Inc.
0.61%
0.69%
25
Costco Wholesale Corp.
0.57%
0.64%
Where they differ
ITOT reports 2,501 holdings and SPY reports 504. 504 of them appear in both, which leaves 1,997 only in ITOT and 0 only in SPY.
Both sets of holdings come from the funds' own Form N-PORT filings with the SEC, covering 101.48% of ITOT and 99.98% of SPY. Overlap is the sum of the smaller weight over every company both funds hold. Costs and yields come from our market data provider.
Now see it across a whole portfolio
Holding ITOT and SPY together is common. Vestiio opens every fund in a portfolio and shows how much of the money reaches the same companies twice. Try it on a sample portfolio of popular index funds, no card needed. To check your own funds, connect a broker read-only or import a statement on the Basic plan.
Fund Explorer is informational research only. Not investment advice. Vestiio is not supervised by FINMA.
SEC 13F filings are delayed manager-level disclosures and do not show the full portfolio, including cash,
shorts, private assets, many derivatives, fees, leverage, or trades made between reporting dates.