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MUB · 13F filings

MUB Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns MUB and what the big funds did with it last quarter, from every SEC 13F filing. 1,648 funds reported holding MUB at Jun 30, 2026.

Fund sentiment
Strongly bullish
Strongly bearishNeutralStrongly bullish
  • ▲870 buying vs 573 selling
  • ▲Shares held by funds +4.8%
  • ●Funds holding +14
  • ▲Superinvestors: 2 added, 1 cut
  • ▲Put/call 441.12 to 122.61

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding1,648+14 vs Q1 2026
Held by funds–of shares outstanding
Value held$40.1B373M shares
Put/call ratio122.61down from 441.12

Funds holding and ownership

8 quarters
Q3 2024: 1,399 fundsQ3 '24Q4 2024: 1,529 fundsQ4 '24Q1 2025: 1,504 fundsQ1 '25Q2 2025: 1,543 fundsQ2 '25Q3 2025: 1,542 fundsQ3 '25Q4 2025: 1,634 fundsQ4 '25Q1 2026: 1,634 fundsQ1 '26Q2 2026: 1,648 fundsQ2 '26
Funds holding

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding1,6481,634+0.9%
In funds' top 108295−13.7%
13F shares373M356M+4.8%
Held by funds–––
New positions95100−5.0%
Increased775768+0.9%
Reduced498497+0.2%
Sold out7591−17.6%
Calls (shares)4,1004,1000.0%
Puts (shares)503K1.8M−72.2%
Put/call ratio122.61441.12−72.2%

Buyers vs sellers

adding or new vs cutting or sold out
Q4 2024: 744 buyingQ4 2024: 537 sellingQ4 '24Q1 2025: 682 buyingQ1 2025: 719 sellingQ1 '25Q2 2025: 689 buyingQ2 2025: 742 sellingQ2 '25Q3 2025: 760 buyingQ3 2025: 659 sellingQ3 '25Q4 2025: 862 buyingQ4 2025: 531 sellingQ4 '25Q1 2026: 868 buyingQ1 2026: 588 sellingQ1 '26Q2 2026: 870 buyingQ2 2026: 573 sellingQ2 '26
Buying 870Selling 573latest quarter

Superinvestors in MUB

All superinvestors →

Who owns MUB

share of fund held shares
  • Index and passive funds0.4%
  • Active managers and hedge funds67.0%
  • Banks and brokers32.2%
  • Pensions, insurers and other0.4%

The top 10 holders own 47.3% of all MUB shares that funds reported. Groups are our own grouping of filers by name.

Put/call ratio

funds' options, market makers left out
1.00Q3 2024: 0.04Q3 '24Q4 2024: 1.48Q4 '24Q1 2025: 10.19Q1 '25Q2 2025: 0.00Q2 '25Q3 2025: 0.38Q3 '25Q4 2025: 0.00Q4 '25Q1 2026: 441.12Q1 '26Q2 2026: 122.61Q2 '26122.61

Above 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.

Filed so far for Q3 2026

1,376 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1Bank of America Corp /de/–44.7M$4.8B+2.6M
2Fmr LLC–22.8M$2.5B+844K
3Betterment LLC–21M$2.3B+1.5M
4Envestnet Asset Management Inc–17.6M$1.9B+881K
5Creative Planning–14.8M$1.6B+434K
6LPL Financial LLC–12.8M$1.4B+995K
7Fisher Asset Management, LLC–12.6M$1.4B+1.1M
8Wells Fargo & Company/mn–10.4M$1.1B+367K
9Mercer Global Advisors Inc /adv–10.4M$1.1B+1M
10Northwestern Mutual Wealth Management Co–9.4M$1B+451K
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

MUB institutional ownership FAQ

Who owns the most MUB stock?

In Q2 2026 13F filings the largest holder of MUB was Bank of America Corp /de/, followed by Fmr LLC and Betterment LLC. Index fund managers are usually the biggest holders of large companies.

What percentage of MUB is owned by institutions?

1,648 funds reported holding 373M MUB shares at Jun 30, 2026.

Are hedge funds buying MUB?

In Q2 2026, 870 funds bought MUB (95 of them new positions) and 573 sold (75 sold out completely). Among well known investors, 2 added and 1 cut. Our fund sentiment for MUB is strongly bullish.

What is MUB's institutional put/call ratio?

Funds reported $54.1M of MUB puts against $441K of calls, a put/call ratio of 122.61 (441.12 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.

How current is this MUB ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.