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Martin Schwoerer's avatar

Intriguing! Thank you.

In general, I don't like seasonality. To me, it sounds like investing based on mostly coincidental data, akin to buying when skirts are short, or staying invested after a positive January. That said, Ryan Detrick's regular glance at seasonality had a better track record for the past three years than most investors.

As to your algorithm, perhaps you'd consider trying out a quarterly approach? The pick-of-the-month approach feels a bit over-optimised to me.

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Jaewon Jung's avatar

Thanks, Martin! Yeah, that's probably a prudent take. I've not known about Ryan Detrick. I'll check his work. I'll also look into a quarterly approach to see if it can get a comparable performance or not.

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Martin Schwoerer's avatar

Detrick is quite active on the Xitter.

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Freebird Kim's avatar

As of 2025.04.16, MDD is over -35%!

But it has never actually been over -30%! The program seems weird.

Am I not understanding it?

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Jaewon Jung's avatar

Yes, it's performing pretty bad lately. What do you mean by "seems weird"?

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Freebird Kim's avatar

I switched to PALL in December. December 2024 is actually -7.45%, but the data from this program is -5.19%.

I don't think it's right at all.

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Jaewon Jung's avatar

The strategy doesn't have the PALL position...

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Freebird Kim's avatar

I tried changing December to "PALL".

In reality, PALL in December 2024 is -7.45%, but in this program, it is -5.19%. Is this a bug in this program?

And look at the MDD graph carefully. As of April 16, 2025, MDD was over -35%! However, in reality, it has never been over -30%!

Is this also a bug?

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Jaewon Jung's avatar

Not a bug. You need to keep in mind that trades can happen only on market days. So for this strategy, PALL will be entered only from the market close of 12/2, not from 11/30 or 12/1. That's why you see the discrepancy in monthly return numbers. And what makes you think the MDD has never been over 30%?

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Freebird Kim's avatar

As of the end of January 2025, MDD is 0%.

As of the end of February, it is -3.71%, and as of the end of March, it is -6.16%. Because 2 months have accumulated.

And the current low in April is -22.64% lower than here. Then MDD is around -27.4%. This program is currently (if you change December to PALL) -42.2%.

Did I do my math wrong?

* I have been very interested in seasonality for several years, so I looked into various seasonality and momentum investments. I really respect Larry Williams. Haha.

So I am going to try this with some of my money. :)

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Jaewon Jung's avatar

Drawdown means peak-to-current. You can see the latest drawdown started from early August last year in the underwater chart. Not from Feb 2025.

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hydromod's avatar

Maybe consider median return instead of average?

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Jaewon Jung's avatar

That can be an interesting approach. It'll be pretty tedious with QuantMage, though, since it doesn't report median returns per month ^^; Unless there is a site or tool that conveniently reports them.

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Alexander Levin's avatar

Would you mind saying more about where the data is for which etf's performed best each month, the data used for your selection?

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Jaewon Jung's avatar

I just manually checked sector / country ETFs and other asset ETFs (like VIXM and bond ETFs) for their monthly returns in QuantMage :)

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