FMUN vs MUB
Fidelity Systematic Municipal Bond Index ETF against iShares National Muni Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
4%
336 shared positions
Fee gap
0 bp
same fee
1-year return gap
0.3 pts
MUB is ahead
Larger fund
MUB
$55.0B
Side by side
| FMUN | MUB | |
|---|---|---|
| Fund | Fidelity Systematic Municipal Bond Index ETF | iShares National Muni Bond ETF |
| Issuer | Fidelity | iShares |
| Category | National Muni | National Muni |
| Expense ratio | 0.05% | 0.05% |
| Assets | $189M | $55.0B |
| Average daily dollar volume | $1.5M | $1.6B |
| Listed | Jul 11, 2019 | Sep 7, 2007 |
| FrenzyCap score | 73 | 99 |
| 1-month return | +4.6% | +4.1% |
| 3-month return | −1.2% | −0.9% |
| Year to date | −2.2% | −2.1% |
| 1-year return | −2.2% | −1.9% |
| 30-day volatility | 7.7% | 5.7% |
| Worst drawdown, 1 year | −9.2% | −7.9% |
| Trailing 12-month yield | 3.36% | 3.26% |
| Holdings | 1,235 | 7,991 |
| Top 10 weight | 5.1% | 1.2% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | +$2.0M thru Jun 2026 | +$1.3B thru Aug 2026 |
| 30-day implied volatility | — | 7.3% |
| Holdings as of | as of Nov 5, 2026issuer data | as of Nov 6, 2026issuer data |
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
26% of FMUN · 5% of MUB| Holding | FMUN | MUB |
|---|---|---|
| OHIO ST UNIV GR 5% 06/01/35, due Jun 1, 2035 | 0.10% | 0.11% |
| UNIV CAL REV 5% 05/15/36, due May 15, 2036 | 0.24% | 0.09% |
| CA ST 5% 03/01/35, due Mar 1, 2035 | 0.12% | 0.07% |
| BATTERY PK REV 5% 11/1/2053, due Nov 1, 2053 | 0.08% | 0.07% |
| NYC NY 5.25% 04/01/54, due Apr 1, 2054 | 0.12% | 0.07% |
| SALT RIVER AZ 5% 01/01/32, due Jan 1, 2032 | 0.15% | 0.07% |
| NYC WTR 5% 06/15/52, due Jun 15, 2052 | 0.07% | 0.06% |
| NYC WTR 5% 06/15/49, due Jun 15, 2049 | 0.10% | 0.05% |
| CONN ST HEALTH 5% 07/01/35, due Jul 1, 2035 | 0.07% | 0.05% |
| NEW JERSEY ST E 07/01/64 MT, due Jul 1, 2064 | 0.06% | 0.04% |
| NEW YORK AUTH 5.25% 05/01/55, due May 1, 2055 | 0.15% | 0.04% |
| BATA CA 4% 04/01/38, due Apr 1, 2038 | 0.20% | 0.04% |
| NEW YORK ST DO 5% 03/15/51, due Mar 15, 2051 | 0.11% | 0.04% |
| CA ST 5% 10/01/29, due Oct 1, 2029 | 0.10% | 0.04% |
| NY STATE UR D 4% 03/15/49, due Mar 15, 2049 | 0.04% | 0.07% |
| LA CA USD 5% 07/01/31, due Jul 1, 2031 | 0.41% | 0.04% |
| GA ST 4% 12/01/33, due Dec 1, 2033 | 0.08% | 0.04% |
| LA CA DWAP 5% 07/01/38, due Jul 1, 2038 | 0.14% | 0.04% |
| MD ST 5% 06/01/38, due Jun 1, 2038 | 0.09% | 0.04% |
| NJ TRANSP 5.5% 06/15/54, due Jun 15, 2054 | 0.11% | 0.04% |
| TX WTR 4% 10/15/49, due Oct 15, 2049 | 0.16% | 0.03% |
| TRIBE_NY 0% 11/15/32, due Nov 15, 2032 | 0.13% | 0.03% |
| ALABA AL 010507 5.25% 07/01/47, due Jul 1, 2047 | 0.08% | 0.03% |
| GRAND PARKWAY T 5% 10/1/48, due Oct 1, 2048 | 0.13% | 0.03% |
| NEW JERSEY ST E 5.25% 3/54, due Mar 1, 2054 | 0.11% | 0.03% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · FMUN holdings · MUB 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.