MUB vs IEF overlap
MUB and IEF overlap 0.0% by weight, across 0 shared holdings.
Pick 2 to 4 ETFs.
Top shared holdings
These funds hold nothing in common.
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: MUB, SEC Form N-PORT, May 31, 2026; IEF, SEC Form N-PORT, May 31, 2026.
Largest institutions holding both
| Firm | MUB | IEF |
|---|---|---|
| Fisher Asset Management, LLC | $1.4B | $15.2B |
| Bank of America Corp. | $4.8B | $2.0B |
| FMR LLC | $2.5B | $2.3B |
| JPMorgan Chase & Co | $482.4M | $3.3B |
| Envestnet Asset Management Inc. | $1.9B | $1.5B |
| Betterment LLC | $2.3B | $56.5M |
| Morgan Stanley | $846.4M | $1.4B |
| Ameriprise Financial Inc. | $196.2M | $1.8B |
| LPL Financial LLC | $1.4B | $577.7M |
| Creative Planning | $1.6B | $21.1M |
| PNC Financial Services Group, Inc. | $781.0M | $826.0M |
| Northwestern Mutual Wealth Management Co | $1.0B | $479.3M |
| Wells Fargo & Company | $1.1B | $303.0M |
| UBS Group AG | $885.4M | $512.6M |
| Mercer Global Advisors Inc. | $1.1B | $4.4M |
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: MUB institutional holders, IEF institutional holders.
Frequently asked questions
How much do MUB and IEF overlap?
0.0% by weight, with 0 holdings in common, using holdings for MUB as of May 31, 2026 and IEF as of May 31, 2026.
Do institutions hold both MUB and IEF?
644 Form 13F filers report positions in both, out of 2,138 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%.