SPYM vs IWD overlap
SPYM and IWD overlap 57.2% by weight, across 425 shared holdings.
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Top shared holdings
| Holding | SPYM | IWD | Overlap |
|---|---|---|---|
| Apple Inc.AAPL | 6.58% | 5.37% | 5.37% |
| Microsoft Corp.MSFT | 4.29% | 3.88% | 3.88% |
| Amazon.COM Inc.AMZN | 3.62% | 5.93% | 3.62% |
| Berkshire HATH-BBRK/B | 1.42% | 2.61% | 1.42% |
| JPMorgan ChaseJPM | 1.36% | 2.45% | 1.36% |
| Intel Corp.INTC | 1.02% | 1.72% | 1.02% |
| Johnson&JohnsonJNJ | 0.95% | 1.71% | 0.95% |
| Exxon Mobil Corp.XOM | 0.88% | 1.59% | 0.88% |
| Walmart Inc.WMT | 0.77% | 1.27% | 0.77% |
| Cisco SystemsCSCO | 0.72% | 1.30% | 0.72% |
| Abbvie Inc.ABBV | 0.69% | 1.15% | 0.69% |
| Costco WholesaleCOST | 0.64% | 0.65% | 0.64% |
| META Platforms-aMETA | 1.92% | 0.63% | 0.63% |
| Unitedhealth GRPUNH | 0.58% | 1.05% | 0.58% |
| Bank of AmericaBAC | 0.58% | 0.98% | 0.58% |
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; IWD, SEC Form N-PORT, June 30, 2026.
Largest institutions holding both
| Firm | SPYM | IWD |
|---|---|---|
| Bank of America Corp. | $4.8B | $10.8B |
| Jones Financial Companies LLLP | $14.6B | $659.8M |
| Morgan Stanley | $1.7B | $9.9B |
| Betterment LLC | $8.6B | $698K |
| JPMorgan Chase & Co | $5.9B | $2.1B |
| LPL Financial LLC | $5.6B | $980.1M |
| Goldman Sachs Group Inc. | $1.8B | $2.8B |
| Marshall WACE, LLP | $4.1B | $2.4M |
| Envestnet Asset Management Inc. | $2.0B | $1.6B |
| Creative Planning | $3.1B | $123.4M |
| Ameriprise Financial Inc. | $539.2M | $2.1B |
| Financial Engines Advisors L.L.C. | $440.3M | $1.9B |
| FMR LLC | $24.1M | $2.2B |
| Wells Fargo & Company | $796.3M | $1.4B |
| Raymond James Financial Inc. | $539.2M | $1.3B |
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, IWD institutional holders.
Frequently asked questions
How much do SPYM and IWD overlap?
57.2% by weight, with 425 holdings in common, using holdings for SPYM as of June 30, 2026 and IWD as of June 30, 2026. The largest shared position is AAPL.
Do institutions hold both SPYM and IWD?
919 Form 13F filers report positions in both, out of 2,779 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%.