SPYM vs IVV overlap
SPYM and IVV overlap 99.8% by weight, across 503 shared holdings.
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Top shared holdings
| Holding | SPYM | IVV | Overlap |
|---|---|---|---|
| Nvidia Corp.NVDA | 7.51% | 7.51% | 7.51% |
| Apple Inc.AAPL | 6.58% | 6.58% | 6.58% |
| Microsoft Corp.MSFT | 4.29% | 4.29% | 4.29% |
| Amazon.COM Inc.AMZN | 3.62% | 3.61% | 3.61% |
| 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 | 1.83% | 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 | 1.36% | 1.36% | 1.36% |
| 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: SPYM, SEC Form N-PORT, June 30, 2026; IVV, SEC Form N-PORT, June 30, 2026.
Largest institutions holding both
| Firm | SPYM | IVV |
|---|---|---|
| BlackRock, Inc. | $72.9M | $65.8B |
| Marshall WACE, LLP | $4.1B | $29.8B |
| Envestnet Asset Management Inc. | $2.0B | $31.0B |
| Jones Financial Companies LLLP | $14.6B | $14.2B |
| Northwestern Mutual Wealth Management Co | $515.0M | $26.2B |
| Creative Planning | $3.1B | $18.4B |
| Bank of America Corp. | $4.8B | $16.6B |
| JPMorgan Chase & Co | $5.9B | $15.3B |
| Morgan Stanley | $1.7B | $18.5B |
| LPL Financial LLC | $5.6B | $11.1B |
| Wells Fargo & Company | $796.3M | $15.3B |
| Citadel Advisors LLC | $285K | $13.2B |
| Royal Bank of Canada | $747.0M | $11.6B |
| PNC Financial Services Group, Inc. | $27.1M | $11.5B |
| Goldman Sachs Group Inc. | $1.8B | $8.8B |
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: SPYM institutional holders, IVV institutional holders.
Frequently asked questions
How much do SPYM and IVV overlap?
99.8% by weight, with 503 holdings in common, using holdings for SPYM as of June 30, 2026 and IVV as of June 30, 2026. The largest shared position is NVDA.
Do institutions hold both SPYM and IVV?
1,486 Form 13F filers report positions in both, out of 4,339 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%.