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← All portfoliosMODEL RECORD / REINVESTORS

GROWTH ENGINE · INCEPTION

Reinvestors.

When today’s gross profit builds tomorrow’s business.

Growing tech businesses that put gross profit back into product, sales, and capacity while keeping growth reasonably efficient.

THE COMPOUNDING LOOP
01Gross profit
02Product + distribution
03More customers
04More gross profit
MODEL RETURN SINCE INCEPTION+2.96%Deposit-neutral NAV
VS. S&P 500 / SPY+3.82 ptsSPY −0.85% over the same dates
HELD IN THE COHORT5045 pass the Oct 2, 2026 screen
PRICES THROUGHLast completed closing session

01 / THE LIVE MODEL RECORD

What happened to a model $100?

Both lines start at $100 on . The last point is the snapshot.

Reinvestors +2.96%S&P 500 proxy −0.85%
971001031062026-08-122026-10-01
MODEL VALUE$102.96
SPY VALUE$99.15

SPY’s adjusted close moved from $770.57 to $763.99. New entrants receive an equal dollar allocation funded by a model deposit at the prevailing NAV. Unitized NAV keeps those deposits out of the return calculation; holdings are kept for a three-year horizon even when they later leave the screen.

02 / THE IDEA

Why this portfolio exists.

A reinvestor spends today to enlarge its future opportunity. The screen asks whether product development, customer acquisition, and capacity spending are turning into durable gross-profit growth without uncontrolled dilution.

03 / HISTORICAL CONTEXT

What the screen found in the past.

2006–2026 RESEARCH TEST

This earlier research test studied stocks that met a related version of the screen, bought at the qualifying point and held for three years. Some gates differ from today’s rules; the results are separate from the live portfolio plotted above.

ANNUALIZED FROM THE MEAN THREE-YEAR STOCK RETURN15.7%
Reinvestors15.7%
Tech universe11.4%
AVERAGE MAXIMUM DRAWDOWN PER STOCK-44%Tech universe -44%
LOST MORE THAN HALF IN THREE YEARS10.6%1,967 historical screen observations

The test uses historical point-in-time, delisted-inclusive research data. These figures describe average individual stock outcomes, including overlapping three-year windows; they are neither the return of an investable portfolio nor a forecast. The live comparison above uses SPY; this historical comparison uses the broader tech universe. The exact current screen gates appear below.

04 / THE DATED HOLDINGS

Every entry has a date.

45 names pass the screen; 5 remain held after leaving it. Prices are through .

50 TOTAL ENTRIES
Portfolio holdings, logged entry prices, and closing prices through October 1, 2026
CompanyAddedCurrent screenEntry priceLast closeWeightSince entry
AGYSAgilysys, Inc.Qualifies$105.46$100.311.9%−4.9%
ALKTAlkami Technology, Inc.Qualifies$19.90$14.041.4%−29.4%
AMDAdvanced Micro DevicesQualifies$486.82$615.732.5%+26.5%
APPFAppFolio Inc.Qualifies$196.74$204.242.1%+3.8%
ASMLASML Holding N.V.Qualifies$1812.86$1808.492.0%−0.2%
BILLBill.com Holdings, Inc.Qualifies$47.63$43.781.8%−8.1%
BZKanzhun LimitedQualifies$15.96$14.951.8%−6.3%
CAMTCamtek Ltd.Qualifies$172.34$153.791.8%−10.8%
CART company storyMaplebear Inc.Qualifies$48.83$44.111.8%−9.7%
CDNSCadence Design SystemsQualifies$325.76$350.732.1%+7.7%
CRWDCrowdStrike Holdings, Inc.Qualifies$220.74$266.092.4%+20.5%
DASHDoorDash, Inc.Qualifies$213.85$182.181.7%−14.8%
DDOGDatadog, Inc.Qualifies$243.76$276.462.2%+13.4%
DTDynatrace, Inc.Qualifies$49.56$59.262.4%+19.6%
FLYWFlywire CorpQualifies$17.30$17.562.0%+1.5%
FSLRFirst SolarHeld after exit$227.13$172.111.5%−24.2%
GLBEGlobal-e OnlineHeld after exit$40.55$40.212.0%−0.8%
GTLB company storyGitLab Inc.Qualifies$41.17$49.952.4%+21.3%
GWREGuidewire Software, Inc.Qualifies$140.09$155.322.2%+10.9%
HOODRobinhood Markets, Inc.Qualifies$104.69$111.152.1%+6.2%
HSAIHesai GroupQualifies$18.95$15.931.7%−15.9%
INTRInter & Co, Inc.Qualifies$5.54$5.301.9%−4.3%
INTUIntuitHeld after exit$331.47$282.781.7%−14.7%
KVYOKlaviyo, Inc.Qualifies$17.46$16.191.8%−7.3%
LITELumentum Holdings Inc.Qualifies$935.70$1045.782.2%+11.8%
LMNDLemonade, Inc.Qualifies$51.41$46.761.8%−9.1%
MELI company storyMercadoLibre, Inc.Qualifies$1825.14$1685.121.8%−7.7%
MRVLMarvell Technology, Inc.Qualifies$201.42$268.082.6%+33.1%
NOWServiceNow, Inc.Qualifies$123.78$137.762.2%+11.3%
NU company storyNu Holdings Ltd.Qualifies$15.23$13.291.7%−12.7%
NVMINova Ltd.Qualifies$407.52$386.601.9%−5.1%
OKTAOkta, Inc.Qualifies$150.06$212.632.8%+41.7%
PANWPalo Alto Networks, Inc.Qualifies$338.49$396.252.3%+17.1%
PCTYPaylocityQualifies$144.20$146.602.0%+1.7%
PDDPDD HoldingsHeld after exit$88.20$76.501.7%−13.3%
RMBSRambus Inc.Qualifies$101.32$107.292.1%+5.9%
SESea LimitedQualifies$111.66$95.271.7%−14.7%
SEZLSezzle Inc.Qualifies$114.41$109.721.9%−4.1%
SHOPShopify Inc.Qualifies$149.68$149.092.0%−0.4%
SKHYSK hynix Inc.Qualifies$152.38$193.502.5%+27.0%
SPGIS&P Global Inc.Qualifies$435.88$388.161.8%−10.9%
SPSCSPS Commerce, Inc.Qualifies$74.40$84.202.2%+13.2%
TCOMTrip.com GroupHeld after exit$45.67$38.761.7%−15.1%
TENBTenable Holdings, Inc.Qualifies$36.95$36.111.9%−2.3%
TSMTaiwan Semiconductor ManufacturingQualifies$429.37$459.202.1%+6.9%
TTDThe Trade Desk, Inc.Qualifies$13.32$12.101.8%−9.2%
TWTradeweb Markets Inc.Qualifies$108.09$103.301.9%−4.4%
VCYTVeracyte, Inc.Qualifies$42.51$44.192.1%+4.0%
WDAYWorkday, Inc.Qualifies$174.31$186.752.1%+7.1%
ZSZscaler, Inc.Qualifies$176.66$198.782.2%+12.5%

“Since entry” compares each stock’s dividend-adjusted closing price with its originally logged entry price; it is not the portfolio return. Entry prices were indicative model prices, not verified trade fills. Weights reflect the dated model snapshot. A name leaving the screen remains in the cohort under the three-year hold rule.

THE SCREEN, IN DETAIL

What has to be true?

The current rule set is recorded with the screen. A pass starts the research process; it is not a conclusion about the stock.

  1. Gross margin > 40%; 3-year revenue growth > 15%
  2. R&D + S&M + capex > 40% of gross profit
  3. Owner Rule of 40 > 25%; total growth efficiency > 0.15
  4. Annual share change between −2% and +6%
  5. Altman Z > 1.0; Beneish < −1.49, or unavailable

KEEP FOLLOWING THE RESEARCH

The numbers lead back to the business.

Read the original Reinvestors frameworkFollow future updates

These dated, hypothetical model results and historical tests are for independent research, not personalized investment advice or client account performance.