Sunday, August 23, 2026

Even More Unconstrainment

Let's continue yesterday's conversation about unconstrained strategies. 

Starting with another ETF from fund provider Monarch, the Monarch Ambassador Income ETF (MAMB) seems to delve into unconstrained territory. 


How has that impacted results versus AGG and IUSB?


MAMB was very close to AGG and IUSB until 2025 when its allocation to gold (per Copilot) added to returns. In 2022, there was no differentiation versus AGG or IUSB.

Their idea though can be implemented with different funds to get a differentiated result. Their idea is valid but could benefit from being more unconstrained. The following allocation is the where I would start trying to use MAMB's process.


TYLD can flip between short term bills and longer term income sectors based on how wide spreads are. Since its inception in 2024, TYLD it has only been in T-bills. I am using TYLD as a proxy for long term treasuries because it can switch to that if it ever becomes attractive to will but avoid that unreliable volatility in the meantime. Where TYLD has only been in T-bills since inception, we can use SHY which is also T-bills to get a longer look than just two years. 


The MAMB replication outperformed thanks to less exposure to duration which has probably been one of the most important themes we've talked about over the history of this blog but less duration also helped bring the volatility way down versus the MAMB ETF and IUSB. Usually, I include a slice of these studies to catastrophe bonds but I didn't think anything in MAMB's holdings was that close to cat bonds. Replacing half the BKLN allocation which SHRIX improved the CAGR by 30 basis points and lowered the volatility by just a couple of ticks. 

As I said yesterday, I think of unconstrained as looking different from some default fund or strategy. There's nothing wrong with MAMB when considered against AGG or IUSB but if an investor does not want their equity offset to look like AGG or IUSB then MAMB won't be the best solution. It's still interesting and obviously I think there is merit in their idea but with different funds. 

The information, analysis and opinions expressed herein reflect our judgment and opinions as of the date of writing and are subject to change at any time without notice. They are not intended to constitute legal, tax, securities or investment advice or a recommended course of action in any given situation.

2 comments:

Anonymous said...

The purpose is income, correct? I do not see how these products generate anything but losses. What is the drag from compounding fees from at least two layers of management? What is the standard reference? Inflation + X%? IS X 4, 5, or more?

Roger Nusbaum said...

Equity offset not necessarily income. For the last 2.5 years that TYLD actually existed, the portfolio's TR CAGR was 7.46% of which 4.07% was yield. The real return was just over 4%. In the same period IUSB TR CAGR was 3.92% of which 4.12% was yield (negative compounding on a price only basis).

The result doesn't seem bad to me, CPI plus 4 for fixed income replacement, but the point of the exercise is to study how others are building and managing allocations.

Even More Unconstrainment

Let's continue yesterday's conversation about unconstrained strategies.  Starting with another ETF from fund provider Monarch, the M...