SPYM vs IWF overlap
SPYM and IWF overlap 57.5% by weight, across 177 shared holdings.
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Top shared holdings
| Holding | SPYM | IWF | Overlap |
|---|---|---|---|
| Nvidia Corp.NVDA | 7.51% | 13.83% | 7.51% |
| Apple Inc.AAPL | 6.58% | 6.72% | 6.58% |
| Microsoft Corp.MSFT | 4.29% | 4.11% | 4.11% |
| Alphabet Inc.-aGOOGL | 3.25% | 6.17% | 3.25% |
| Broadcom Inc.AVGO | 2.77% | 5.21% | 2.77% |
| Alphabet Inc.-CGOOG | 2.59% | 4.98% | 2.59% |
| Micron TechMU | 2.02% | 3.86% | 2.02% |
| META Platforms-aMETA | 1.92% | 3.00% | 1.92% |
| Tesla Inc.TSLA | 1.83% | 3.64% | 1.83% |
| ELI Lilly & CoLLY | 1.47% | 2.84% | 1.47% |
| ADV Micro DeviceAMD | 1.47% | 2.80% | 1.47% |
| Applied MaterialAMAT | 0.89% | 1.70% | 0.89% |
| VISA Inc.-Class aV | 0.88% | 1.68% | 0.88% |
| LAM ResearchLRCX | 0.84% | 1.60% | 0.84% |
| Caterpillar Inc.CAT | 0.76% | 1.43% | 0.76% |
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; IWF, SEC Form N-PORT, June 30, 2026.
Largest institutions holding both
| Firm | SPYM | IWF |
|---|---|---|
| Bank of America Corp. | $4.8B | $13.5B |
| Morgan Stanley | $1.7B | $14.8B |
| Jones Financial Companies LLLP | $14.6B | $473.9M |
| JPMorgan Chase & Co | $5.9B | $3.2B |
| Betterment LLC | $8.6B | $3.1M |
| LPL Financial LLC | $5.6B | $1.9B |
| Goldman Sachs Group Inc. | $1.8B | $3.4B |
| Envestnet Asset Management Inc. | $2.0B | $2.6B |
| FMR LLC | $24.1M | $4.1B |
| Allianz Asset Management GmbH | $4.1B | $8.3M |
| Creative Planning | $3.1B | $232.1M |
| Wells Fargo & Company | $796.3M | $2.2B |
| UBS Group AG | $230.4M | $2.3B |
| Northern Trust Corp. | $8.2M | $2.5B |
| Raymond James Financial Inc. | $539.2M | $1.7B |
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, IWF institutional holders.
Frequently asked questions
How much do SPYM and IWF overlap?
57.5% by weight, with 177 holdings in common, using holdings for SPYM as of June 30, 2026 and IWF as of June 30, 2026. The largest shared position is NVDA.
Do institutions hold both SPYM and IWF?
1,088 Form 13F filers report positions in both, out of 3,140 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%.