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MAMB

GradeDChicago Board Options Exchange

Monarch Ambassador Income Index ETF

Core US Bond · Monarch · Inception 2021-03-23 · SEC filings

$23.43−0.25 (−1.04%)

As of Sep 23, 2026, 3:06 PM EDT

Intraday session: down, 57 prints from 23.68 to 23.43. Range 23.38 to 23.61. Use the arrow keys to read each point.$23.40$23.50$23.6010 AM12 PM2 PM4 PM
Expense ratio
1.15%
Fund size
$198M
1Y return
+2.5%
Yield · Last 12 months
2.70%
Holdings
11
Volume · 30D
0M sh
NAV per share
$23.66
52W range
low $23.05high $24.83

The ETF.net MAMB Grade

D

33/ 100

Rank 28 of 29 in Global Aggregate Bond (Unhedged)

Confidence High

Six-pillar profile for MAMB. Scores out of 100: Cost 0, Risk 38, Mission 66, Tradability 46, Holdings 25, Durability 44. Strongest: Mission (66). Weakest: Cost (0). Leans toward Mission.
F< 25
D≥ 25
C≥ 40
B≥ 55
A≥ 70

Score 33 of 100 sits in the D band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E.

  • Cost

    What you pay to own it — the expense ratio plus trading frictions, ranked within its category.
    FScore 0
    Category rank29/29 · bottom quartile
  • Mission

    How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.
    BScore 66
    Category rank20/27 · mid-pack
  • Risk

    How violently it can move — volatility, drawdown depth, and downside capture versus its category.
    DScore 38
    Category rank20/29 · mid-pack
  • Tradability

    How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.
    CScore 46
    Category rank17/29 · mid-pack
  • Holdings

    What it actually owns — the quality, breadth, and concentration of the underlying portfolio.
    DScore 25
    Category rank26/29 · bottom quartile
  • Durability

    Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.
    CScore 44
    Category rank21/29 · mid-pack

Graded as of Sep 22, 2026

Our read on MAMB

ETF.net Research

DA bond fund that goes its own way: MAMB replicates the proprietary Monarch Ambassador Income Index across US and global debt, pays quarterly, and charges well above the core-bond norm to do it.

Stated mandate

The Fund seeks to replicate, before fees and expenses, the performance of the Monarch Ambassador Income Index. It invests at least 80% of assets in Index constituents and uses a replication-indexing strategy.

Why people hold it

  1. 01Rules first: at least 80% of assets sit in index constituents, held by straight replication rather than manager discretion.
  2. 02Income lands on a quarterly schedule, and the mandate reaches across both US and global bonds instead of one narrow sleeve.
  3. 03Trading since 2021, so there is a real multi-year live record to inspect, not a back-test.

Worth knowing

  1. 01Cost is the headline trade-off: 1.39% a year against a 0.36% median for aggregate-bond peers, and 0.03% at BND, SPAB and SCHZ.
  2. 02Thinly traded and small beside the core-bond giants, so the spread on the way in and out carries more weight here.
  3. 03No other fund tracks the Monarch Ambassador Income Index, leaving fewer outside reference points for judging the benchmark itself.

MAMB Holdings

As of Sep 20, 2026, 9:24 AM
Asset class
Bonds
Holdings
11
Top-10 weight
100%
Largest holding
MBB18.7%

Sectors

Geography

The fund’s holdings, weight-ordered — page 1 of 1.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001MBBiShares MBS ETF USD Class18.66%402,586$37M15
002LQDiShares iBoxx $ Investment Grade Corporate Bond ETF USD Class16.29%306,441$32M4
003IEFiShares 7-10 Year Treasury Bond ETF USD Class13.67%296,443$27M9
004AGGiShares Core U.S. Aggregate Bond ETF12.50%256,516$25M13
005SHYiShares 1-3 Year Treasury Bond ETF USD Class11.30%273,923$22M7
006CWBSPDR Bloomberg Convertible Securities ETF ETF6.27%121,358$12M4
007TLTiShares 20+ Year Treasury Bond ETF USD Class6.25%151,507$12M7
008BABInvesco Taxable Municipal Bond USD Class6.24%474,059$12M5
009IAUiShares Gold Trust6.17%147,849$12M5
010SPSBSPDR Portfolio Short Term Corporate Bond ETF Bond ETF2.51%166,847$5M3
011US DOLLARS0.22%435,702$436K67

Showing 1–11 of 11 holdings

MAMB Performance

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

MAMB$10,247
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$11,723
Sep 22, 2025 to Sep 22, 2026. MAMB $10,247. SPY $11,723. Use the arrow keys to read each point.$9,353$10,646$11,940Sep 2025Mar 2026Sep 2026

Sep 22, 2025 – Sep 22, 2026

Returns run to the Sep 22, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for MAMB. Periods over one year show the average yearly return.
PeriodMAMB
Year to date+0.1%
1 month−1.2%
3 months−1.6%
1 year+2.5%
3 years+6.0%per year
5 years+0.2%per year
10 yearsFund is under 10 years oldper year

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for MAMB
YearReturn barMAMB
2026 YTD+0.1%
2025+10.7%
2024+1.3%
2023+4.9%
2022−13.0%
2021+1.4%

History from Mar 24, 2021

MAMB in the news

ETF.net Research hasn’t filed on MAMB yet — coverage lands here as it’s written.

MAMB Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Sep 22, 2026.
2.70%Last 12 months
Payout per share
$0.64Last 12 months
Last payment
$0.16 per share
Paid on
Shares bought on or after this date do not qualify for this distribution.
Frequency
Quarterly

Distribution history

2021–2026

One bar per payment. 21 payments from 2021 to 2026 YTD. Jun 25, 2021 $0.03; Sep 24, 2021 $0.03; Dec 20, 2021 $0.08; Mar 25, 2022 $0.0067; Jun 24, 2022 $0.04; Sep 23, 2022 $0.04; Dec 20, 2022 $0.11; Mar 24, 2023 $0.06; Jun 23, 2023 $0.08; Sep 22, 2023 $0.08; Dec 20, 2023 $0.17; Mar 27, 2024 $0.06; Jun 27, 2024 $0.10; Sep 26, 2024 $0.12; Dec 19, 2024 $0.19; Mar 27, 2025 $0.09; Jun 27, 2025 $0.12; Sep 26, 2025 $0.15; Dec 18, 2025 $0.23; Mar 26, 2026 $0.09; Jun 25, 2026 $0.16. Use the arrow keys to read each point.202120222023202420252026YTD
Ex-datePay dateAmount per share
Jun 25, 2026Jun 30, 2026$0.16
Mar 26, 2026Mar 31, 2026$0.09
Dec 18, 2025Dec 23, 2025$0.23
Sep 26, 2025Oct 1, 2025$0.15
Jun 27, 2025Jul 2, 2025$0.12
Mar 27, 2025Apr 1, 2025$0.09
Dec 19, 2024Dec 24, 2024$0.19
Sep 26, 2024Oct 1, 2024$0.12
Jun 27, 2024Jul 2, 2024$0.10
Mar 27, 2024Apr 2, 2024$0.06
Dec 20, 2023Dec 27, 2023$0.17
Sep 22, 2023Oct 2, 2023$0.08

MAMB Risk

How much the fund’s monthly returns vary, scaled to a year.
6.4%
Annualised · 36 months to Aug 2026
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
0.17
vs 3-month T-bills · to Aug 2026
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
−19.1%
Trough Oct 2022
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
1.12
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

MAMB Cost

Expense ratio1.15%
  • The middle half of Global Aggregate Bond (Unhedged) funds
  • Median 0.41%

Every other Global Aggregate Bond (Unhedged) fund charges less.

MAMB costs $115.00 a year on $10,000. The median Global Aggregate Bond (Unhedged) fund costs $41.00.