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The week's question
In March 2025, in the thread "Re: OT, out", Umm asked the members: "Do you think it is because America is made up of magical soil that makes businesses based in America magically profitable?" This week it is put to everyone again. The button below opens the small thread re-asking it - read what others have said so far, then give your own answer as an ordinary reply.
Answer this questionContinue to Shrewd'mThis note won't appear again
Investment Strategies / Mechanical Investing
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Author: lizgdal ✶☼  😊 😞
Number: of 6243 
Subject: Academic Factors and Microcaps
Date: 07/28/23 10:35 PM
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No. of Recommendations: 12
I made a version of this P123 microcap screen using gtr1. Matching the CAGR was easy. Matching the turnover required some extra steps.
community.portfolio123.com - Long term performance of popular academic factors in the microcap universe

Microcap screen results are very sensitive to transaction costs. For this screen, most of the picks have less than $500k dollar volume, and so 1% friction or higher might be expected.

Command Translation
Define {MicroCap_AcademicFactors_20230728_P123}
Create [Mo]: [Total Return % over 231 days; lag=21 days]
Create [Surprise]: [SI Quarterly Surprise-Percent; lag=1 days]
Create [BETA]: [TR5-Beta vs S&P500 over 51 periods; lag=1 days]

Create [r1]: [Rank by [MktCap] (Desc) at step4]
Create [r2]: [Rank by [BP] (Asc) at step4]
Create [r3]: [Rank by [Mo] (Asc) at step4]
Create [r4]: [Rank by [Surprise] (Asc) at step4]
Create [r5]: [Rank by [BETA] (Desc) at step4]
Create [rankAll]: [[r1] + [r2] + [r3] + [r4] + [r5]]

step0: [Security Type; lag=1 days] == 10,11,12
step1: [Mkt Days Since Security Opened; lag=1 days] >= 255
step2: [MktCap] Bottom 50%
step3: [Average dollar-volume over 10 days; lag=1 days] > 100000
step4: [rankAll] Top 100
step5: [rankAll] Top 20

Holding period = 5 mkt days
Hold while passing step4
Hold for at least 12 holding periods
Frictional loss of 0.4% applied to all sales
Rebalance to equal weight among new positions only

          P123  gtr1
turnover 2.18 2.92
CAGR 32% 27%
Sharpe 0.93 0.81
MDD -65% -62%


year  P123  gtr1
2013 74 43
2014 15 17
2015 109 17
2016 49 19
2017 -5 5
2018 -2 -11
2019 24 34
2020 164 373
2021 55 45
2022 -14 -5

avg 47 54
sd 56 114


gtr1.net: GTR1 Backtester - MicroCap_AcademicFactors_20230728_P123

=================
dv10_from to Count Slippage Friction
0 250,000 126 0.65% 1.39%
250,000 500,000 312 0.51% 1.11%
500,000 1,000,000 1762 0.31% 0.73%
1,000,000 2,500,000 4138 0.16% 0.42%
2,500,000 max 17622 0.01% 0.12%
http://www.datahelper.com/mi/search.phtml?nofool=y...

"The slippage is set according to where the average falls in this table:
0 - $50K → 5%
$50K - $100K → 1.5%
$100K - $350K → 0.75%
$350K - $1M → 0.5%
$1M - $5M → 0.25%
$5M+ → 0.1%"
community.portfolio123.com - Difference between ranking and live portfolio
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Members reply directly to lizgdal here — and replies get answered. Reading is free; so is joining the conversation. Join Shrewd'm »
This community has written 6,227 posts about Mechanical Investing. The article-length ones it recommended most:
Dividend investing · 52 recs · 2025
Non-Mag7 screen · 34 recs · 2025
OT - Div yields and returns · 32 recs · 2024
Using AI to generate backtesting programs · 30 recs · 2025
Rankings for 19Dec2022 · 29 recs · 2022
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