There’s this Fullerton Sensible Revenue fund that has 2 distribution class. The R class distributes 4.5% of the NAV. That is principally a constant-percentage withdrawal methodology and such a technique technically can simply hold giving 4.5%. However as a result of it’s based mostly on capital, your earnings goes to be risky.
However you may at all times select to promote models so that you could have a constant earnings.
Effectively promoting models is at all times sensitive for a lot of as a result of for those who promote models, your portfolio will run out of cash sooner?
You can’t have each actually. I discover that earnings buyers should acknowledge that in case your earnings is risky it’s also an issue! What makes a lot of their plan work is that they’ve so, so, a lot extra earnings that the volatility doesn’t have an effect on them. It’s good to acknowledge what makes them work isn’t taking solely pure fund distribution… however they’ve extra capital.
Anyway, since I’ve Gilgamesh, my Protected Revenue Spending Simulator, I assumed why not see how a Sensible Revenue like portfolio would do over many, many, many 30-year retirement.
So that’s this submit is about.
Yow will discover the January 2026 Fullerton Sensible Revenue Factsheet right here.
Right here is the allocation.

We’re going to begin someplace to simulate with Gilgamesh, after which we’re going to do a number of variations to see how altering some parameters might change how we view a Sensible Revenue-Like portfolio.
What I Put into my Fullerton WiseIncome Simulation


- Inflation Scheme: US CPI [Up to Feb 2026]
- All-in-cost: 0.40% p.a.
- Portfolio Allocation:
- MSCI World: 30%
- S&P Asia Pacific REIT: 30%
- ICE BofA 1 Yr US Treasury Be aware Index: 20%
- 20-Yr US Treasury Index: 20%
I feel this isn’t probably the most excellent. Ideally, we need to use Singapore REITs solely, however the first Singapore REITs solely began in 2002 (which is both CapitaMall Belief or Ascendas REIT), so you’ll be able to’t have so many 30 12 months intervals.
S&P Asia Pacific REIT begins in 1989 which can give us a good quantity of 30-year intervals.
I’d hope to make use of some Asian bonds, with a shorter length, however we don’t actually have that information. So I used a barbell method of a 1-year US Treasury and 20-year US Treasury to get to an in depth sufficient length. With out Asian centered bonds, the investor lose out on the credit score premium, however acquire some decrease volatility.
The tenure of knowledge is from Aug 1989 to Sep 2025. There are 434 months so this provides us 75 historic 30-years interval if we iterate month by month.
We attempt to spend an inflation adjusted $40,000 from a $1 million preliminary portfolio and see if the portfolio final for all 75 30-year intervals.


The end result present they do final. 5 out of the 75 didn’t protect the worth, which is an okay factor. It’s extra to point out that in 70 out of these 30-year intervals, you find yourself having lots of earnings AND your $1 million is preserved in inflation adjusted phrases.


Right here is the metric for such a portfolio. That’s the CAGR for this complete interval and the Sharpe and Sortino ratio. The usual deviation is fairly low.


Within the worst 30-year interval, the portfolio is left with $1.8 mil.
And you may go to the “Sequences” tab to see every of these interval.
What If I Dramatically Scale back the Length of the Mounted Revenue
20-year fastened earnings offers larger return, but it surely additionally triggered the portfolio to have larger drawdown if it lives by the 2022 interval.


However let me substitute the 20-year with simply all 1-year Treasury Be aware and lets see the end result.


What we are going to discover is that as a substitute of the portfolio values preserved in most 30-year sequences, most solely find yourself surviving. You will notice the ending values to be nonetheless close to the beginning $1 million, however adjusted for inflation they type of didn’t protect the inflation-adjusted $1 million.
What if We add 5% in US Excessive Yield Bond to the 1-Yr Treasury Be aware Combine?
The wacky factor is I noticed that among the many prime 5 fastened earnings holdings the WiseIncome fund held a iShares USD Asia Excessive Yield Bond ETF. Some would discover that it’s a dangerous transfer and I’ve acknowledged my stand on excessive yield fastened earnings. It’s principally equities masquerading as fastened earnings.
It goes down when equities go down so it doesn’t cushion the portfolio throughout extra misery instances. Whereas we do not need Asia Excessive Yield information, we are able to substitute it with a Bloomberg US excessive yield bond index to see how the portfolio reacts.
I bought to caveat first: Asia Excessive Yield just isn’t precisely US excessive yield. Through the latest China bear, lots of Asia excessive yield fastened earnings actually bought their worth lower and so they nonetheless don’t look good at this time. Asia Excessive Yield find yourself as China Excessive Yield. So I don’t need you to suppose that these are comparable.


The end result regarded higher than simply utilizing 1-Yr US Treasury.
Why not Use International Mixture Bond As a substitute?
Okay as a substitute of twiddling with the fastened earnings a lot, lets simply use the Bloomberg International Mixture Bond Index, which is a 6 12 months length, common funding grade fastened earnings index fund.
I don’t need to use this initially as a result of the info set is smaller. We will solely have 70 30-year interval.


This ended up fairly good!
Extra of the portfolio worth is preserved after spending the earnings.
What if We Jack Up the All-in-Price to 1.4% p.a.?
We take the final portfolio, with the Bloomberg International Mixture Bond, and jack-up the associated fee to incorporate Advisory charges:


With the added charges, this could add stress to the portfolio:


As a substitute of preserving wealth, a lot of the 30-year cycles ended up surviving. Nonetheless greater than $1 million.
What’s Actually Difficult for Such a Portfolio
I feel there are some sequences that takes place previously 30 years, that haven’t accomplished a full 30 years that may be difficult.
For those who make investments $1 million on the prime of earlier than GFC, round Jun 2007, that’s one thing which may be doubtlessly difficult that we marvel if the portfolio can survive.
I cut back the tenure to 17 years (from 30 years) and we’re capable of see such difficult sequence.
Right here is the 17-year interval beginning in Jun 2007 and ending Could 2024:


You possibly can see the 17 12 months return is like 2.7% p.a. Instantly after invested the portfolio dropped to $600k. It did survive and as much as at this time, it held $473,850 in worth.


You drew earnings of $40k to a closing earnings of $59k within the final 12 months.


The present withdrawal fee reveals us if we take the earnings drawn out at any month, divide by the present portfolio worth, what’s the withdrawal fee. A low quantity reveals that the portfolio can nonetheless ship earnings for a lot of extra years and if that is too excessive, the earnings could not final lengthy.
We will see that on this sequence, the ending present withdrawal fee is 12.7%.
Whether it is this sequence, probably the investor can not draw an inflation alter earnings for greater than 8 years.
What if We Scale back the Beginning Revenue to $30,000 as a substitute of $40,000 within the Preliminary Yr?
We take the identical portfolio, with the identical larger price, however we cut back the earnings drawn out.
The answer to unfavorable sequence of return threat (which this doubtlessly is) is a decrease secure withdrawal fee.
We will check out the way it seems to be:


The chart may look the identical however its really larger at $750k as a substitute of $473k.


Essentially the most telling is that the present withdrawal fee has now halved at 6% as a substitute of 12%. At 6%, whether or not your cash will final or not rely on market returns and if inflation picks up. In a good sequence, your cash would final higher.
All this goes to point out that there are difficult sequence however there’s a motive to stay conservative in how a lot you determine to spend in the beginning.
Let me know when you’ve got any questions beneath
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