What both funds hold

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	SPYM	VOO
1	NVIDIA Corp	7.51%	7.51%
2	Apple Inc	6.59%	6.59%
3	Microsoft Corp	4.29%	4.30%
4	Amazon.com Inc	3.62%	3.62%
5	Alphabet IncUS02079K3059	3.25%	3.25%
6	Broadcom Inc	2.77%	2.77%
7	Alphabet IncUS02079K1079	2.59%	2.59%
8	Micron Technology Inc	2.02%	2.02%
9	Meta Platforms Inc	1.92%	1.92%
10	Tesla Inc	1.83%	1.84%
11	Eli Lilly & Co	1.47%	1.47%
12	Advanced Micro Devices Inc	1.47%	1.47%
13	Berkshire Hathaway Inc	1.42%	1.42%
14	JPMorgan Chase & Co	1.36%	1.26%
15	Intel Corp	1.02%	1.02%
16	Johnson & Johnson	0.95%	0.95%
17	Applied Materials Inc	0.89%	0.89%
18	Exxon Mobil Corp	0.88%	0.88%
19	Visa Inc	0.88%	0.87%
20	Lam Research Corp	0.84%	0.84%
21	Walmart Inc	0.77%	0.77%
22	Caterpillar Inc	0.76%	0.76%
23	Cisco Systems Inc	0.72%	0.72%
24	AbbVie Inc	0.69%	0.69%
25	Costco Wholesale Corp	0.64%	0.64%

Where they differ

SPYM reports 507 holdings and VOO reports 505. 504 of them appear in both, which leaves 3 only in SPYM and 1 only in VOO.

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Each fund on its own

Fund	Holdings	Cost a year	Yield	Filing covers
SPYMState Street® SPDR® Portfolio S&P 500® ETF	507	0.02%	1.28%	100.08%30 June 2026
VOOVanguard S&P 500 ETF	505	0.03%	1.05%	100.10%30 June 2026

Both sets of holdings come from the funds' own Form N-PORT filings with the SEC, covering 100.08% of SPYM and 100.10% of VOO. Overlap is the sum of the smaller weight over every company both funds hold. Costs and yields come from our market data provider.

SPYM vs VOO

What both funds hold

Where they differ

Each fund on its own

Now see it across a whole portfolio