VOO vs SPYM overlap
VOO and SPYM overlap 99.7% by weight, across 504 shared holdings.
Pick 2 to 4 ETFs.
Top shared holdings
| Holding | VOO | SPYM | Overlap |
|---|---|---|---|
| Nvidia Corp.NVDA | 7.51% | 7.51% | 7.51% |
| Apple Inc.AAPL | 6.59% | 6.58% | 6.58% |
| Microsoft Corp.MSFT | 4.30% | 4.29% | 4.29% |
| Amazon.COM Inc.AMZN | 3.62% | 3.62% | 3.62% |
| Alphabet Inc.-aGOOGL | 3.25% | 3.25% | 3.25% |
| Broadcom Inc.AVGO | 2.77% | 2.77% | 2.77% |
| Alphabet Inc.-CGOOG | 2.59% | 2.59% | 2.59% |
| Micron TechMU | 2.02% | 2.02% | 2.02% |
| META Platforms-aMETA | 1.92% | 1.92% | 1.92% |
| Tesla Inc.TSLA | 1.84% | 1.83% | 1.83% |
| ELI Lilly & CoLLY | 1.47% | 1.47% | 1.47% |
| ADV Micro DeviceAMD | 1.47% | 1.47% | 1.47% |
| Berkshire HATH-BBRK/B | 1.42% | 1.42% | 1.42% |
| JPMorgan ChaseJPM | 1.26% | 1.36% | 1.26% |
| Intel Corp.INTC | 1.02% | 1.02% | 1.02% |
Overlap by weight adds up the smaller weight of each holding the funds share, so 100% means identical portfolios. Long securities only: derivatives and cash vehicles are left out. Sources: VOO, SEC Form N-PORT, June 30, 2026; SPYM, SEC Form N-PORT, June 30, 2026.
Largest institutions holding both
| Firm | VOO | SPYM |
|---|---|---|
| Jones Financial Companies LLLP | $12.4B | $14.6B |
| Bank of America Corp. | $19.1B | $4.8B |
| JPMorgan Chase & Co | $16.3B | $5.9B |
| Raymond James Financial Inc. | $21.4B | $539.2M |
| Morgan Stanley | $17.1B | $1.7B |
| Goldman Sachs Group Inc. | $10.6B | $1.8B |
| LPL Financial LLC | $4.5B | $5.6B |
| Envestnet Asset Management Inc. | $7.4B | $2.0B |
| Betterment LLC | $264.5M | $8.6B |
| USS Investment Management Ltd | $1.1B | $5.8B |
| Royal Bank of Canada | $5.8B | $747.0M |
| Wells Fargo & Company | $4.4B | $796.3M |
| Allianz Asset Management GmbH | $258.5M | $4.1B |
| Creative Planning | $1.1B | $3.1B |
| Cerity Partners LLC | $3.6B | $306.9M |
This compares who owns the funds, not what the funds hold. From SEC Form 13F, for managers with $100M+ in US securities.
Who owns them: VOO institutional holders, SPYM institutional holders.
Frequently asked questions
How much do VOO and SPYM overlap?
99.7% by weight, with 504 holdings in common, using holdings for VOO as of June 30, 2026 and SPYM as of June 30, 2026. The largest shared position is NVDA.
Do institutions hold both VOO and SPYM?
1,441 Form 13F filers report positions in both, out of 4,284 that report either one.
How is overlap by weight worked out?
For each holding the two funds share, take the smaller of the two weights, then add those up. Identical portfolios score 100%.