MUB vs TAXI
iShares National Muni Bond ETF against Northern Trust Intermediate Tax-Exempt Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
3%
306 shared positions
Fee gap
0 bp
same fee
1-year return gap
2.5 pts
TAXI is ahead
Larger fund
MUB
$54.1B
Side by side
| MUB | TAXI | |
|---|---|---|
| Fund | iShares National Muni Bond ETF | Northern Trust Intermediate Tax-Exempt Bond ETF |
| Issuer | iShares | Northern Trust FlexShares |
| Category | National Muni | National Muni |
| Expense ratio | 0.05% | 0.05% |
| Assets | $54.1B | $160M |
| Average daily dollar volume | $1.8B | $6.3M |
| Listed | Sep 7, 2007 | Aug 18, 2025 |
| FrenzyCap score | 99 | 75 |
| 1-month return | +2.6% | +3.0% |
| 3-month return | −2.1% | −0.4% |
| Year to date | −3.1% | −1.5% |
| 1-year return | −3.5% | −0.9% |
| 30-day volatility | 6.3% | 4.6% |
| Worst drawdown, 1 year | −7.9% | −6.3% |
| Trailing 12-month yield | 3.29% | 2.63% |
| Holdings | 7,822 | 2,397 |
| Top 10 weight | 1.1% | 1.6% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | +$1.3B thru Aug 2026 | +$46M thru Jun 2026 |
| 30-day implied volatility | 11.8% | — |
| Holdings as of | as of Oct 23, 2026issuer data | as of Jun 30, 2026SEC filing |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
3% of MUB · 13% of TAXI| Holding | MUB | TAXI |
|---|---|---|
| UNIVERSITY CALIF REVS 5%, due May 15, 2036 | 0.07% | 0.10% |
| CLARK CNTY NEV ARPT REV 5%, due Jul 1, 2028 | 0.04% | 0.05% |
| WISCONSIN ST ENVIRONMENTAL IMP 5%, due Jun 1, 2033 | 0.04% | 0.04% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2032 | 0.03% | 0.04% |
| MIAMI-DADE CNTY FLA EDL FACS A 5%, due Apr 1, 2041 | 0.03% | 0.04% |
| NEW YORK N Y CITY TRANSITIONAL 5%, due Nov 1, 2039 | 0.03% | 0.05% |
| CALIFORNIA ST 5%, due Nov 1, 2039 | 0.03% | 0.05% |
| NEW JERSEY ST TRANSN TR FD AUT 5%, due Jun 15, 2035 | 0.03% | 0.03% |
| ILLINOIS ST SALES TAX REV 5%, due Jun 15, 2035 | 0.03% | 0.03% |
| REGIONAL TRANSN DIST COLO SALE 4%, due Nov 1, 2039 | 0.03% | 0.05% |
| NEW YORK N Y CITY TRANSITIONAL 5%, due Nov 1, 2031 | 0.04% | 0.03% |
| UNIVERSITY TEX UNIV REVS 5%, due Aug 15, 2030 | 0.04% | 0.03% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2036 | 0.03% | 0.13% |
| BROWARD CNTY FLA SCH BRD CTFS 5%, due Jul 1, 2035 | 0.03% | 0.07% |
| TRIBOROUGH BRDG & TUNL AUTH N 5%, due Nov 15, 2028 | 0.03% | 0.03% |
| NEW YORK N Y CITY TRANSITIONAL 5%, due Nov 1, 2038 | 0.05% | 0.02% |
| GEORGIA ST 5%, due Feb 1, 2032 | 0.02% | 0.04% |
| TEXAS ST 5%, due Oct 1, 2040 | 0.02% | 0.07% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2040 | 0.02% | 0.07% |
| HOUSTON TEX 5%, due Mar 1, 2028 | 0.02% | 0.05% |
| ENERGY NORTHWEST WASH ELEC REV 5%, due Jul 1, 2039 | 0.02% | 0.04% |
| ROUND ROCK TEX INDPT SCH DIST 5%, due Aug 1, 2038 | 0.02% | 0.07% |
| NORTH TEX TWY AUTH REV 5%, due Jan 1, 2034 | 0.02% | 0.02% |
| CONNECTICUT ST SPL TAX OBLIG R 5%, due Jul 1, 2040 | 0.02% | 0.06% |
| NEW YORK N Y CITY TRANSITIONAL 5%, due May 1, 2040 | 0.02% | 0.04% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · MUB holdings · TAXI holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.