I’ve never invested in TechGrowers and don’t follow it but this is GTR1’s interpretation of the version I copied sometime in the past.

Define {TechGrowers}
Create [MktCap]: [1e-06*[[Actual closing Price; share_lag=1 days; quote_lag=1 days]*[Com Shs Outstanding (Adj Company Total); lag=1 days]]]
Create [SoftwareIT]: [[[SI Industry; lag=1 days] == 1018,1036 ? 1 : 0] 19970902 to 20181026; [[SI TRBC 7 Digits; lag=1 days] == 5720101,5720102,5720103 ? 1 : 0] 20181029 to 20241008]
step0: [Security Type; lag=1 days] != 14,15,44,45,73,74,75
step1: [Mkt Days Since Security Opened; lag=1 days] > 30
step2: [MktCap] > 1000
step3: [SI (d) Sales - %% Growth Rate Q5 to Q1; lag=1 days] > 30
step4: [SoftwareIT] > 0
step5: [Total Return % over 126 days; lag=1 days] Top 10; Cash When Fewer
Holding period = 21 mkt days
Equally weight new positions, fully rebalancing all liquid positions to equal weight every 1 holding periods
All trades at market close.

Great returns in most up markets but look at a the big drawdons:
CAGR ’97 till present 11.6%, MaxDrawDown -91%, Ulcer Index 57!

Year   CAGR
19971231	18.4
19981231	47.8
19991231	254.7
20001229	-47.5
20011231	-46.7
20021231	-37.7
20031231	62.2
20041231	26.1
20051230	-3.2
20061229	9.1
20071231	18.7
20081231	-42.6
20091231	32.0
20101231	29.2
20111230	-14.0
20121231	6.4
20131231	57.0
20141231	-10.9
20151231	4.8
20161230	-4.4
20171229	50.6
20181231	48.9
20191231	49.6
20201231	165.6
20211231	14.2
20221230	-58.9
20231229	37.3
20241008	2.3

For those with confidence in market timing.

Mechanical Investing FAQ

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