Reminiscences of a Shrub Operator

Reminiscences of a Shrub Operator

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Reminiscences of a Shrub Operator
Reminiscences of a Shrub Operator
Quant-Monkey-eddon ™️

Quant-Monkey-eddon ™️

"What if" the Quants are Monkeys too?

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Le Shrub
Jul 27, 2025
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Reminiscences of a Shrub Operator
Reminiscences of a Shrub Operator
Quant-Monkey-eddon ™️
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There’s been a type of “Quant-mageddon” recently, where algo-driven strategies experienced one of their largest drawdowns ever, as can be seen from the chart below:

source: GS

The GS Long/Short Index of Crowded Longs vs Crowded Shorts just had its worst June-July streak ever (h/t JaredKubin):

Image

This “Quant-mageddon”, which caught off-guard the biggest quant funds, has partly been attributed to the “Retail Meme Mania”.

I think it’s too convenient for the “smartest guys in the smartest funds” to blame “retail investors” for their losses.

“What if” it’s the Quants who got their inputs and outputs wrong? “What if” their models suck? “What if” their AI isn’t actually Intelligent, just Artificial?

“What if” the Quants are Monkeys too? In which case, “What if” we just experienced, not Quant-mageddon, but Quant-Monkey-eddon™️?

Here’s the funny part: I didn’t really feel this Quant-Monkey-eddon in my Portfolio. Or so I thought. Then this happened, which triggered this article:

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