ETF Foundry
DRAFT — HYPOTHETICAL MODEL PORTFOLIO — NOT A REGISTERED FUND, NOT AN OFFER TO SELL SECURITIES, NOT INVESTMENT ADVICE.
size factor · long-only model fund

Foundry Industrials Small Size Factor ETF

ETF Foundry Research (hypothetical) · rebalanced monthly

FSIIHYPOTHETICAL MODEL
Since ’99
+29%
Expense Ratio
0.45%
placeholder
Holdings
142
cap-weighted
Inception
Oct 2019
placeholder
Full Sharpe
0.14
Ann. Return (LS)
2.0%
Ann. Volatility
14.7%
Max Drawdown
-67.8%
Test Sharpe ’19–26
-0.49
Test FF5 α (ann.)
0.4%
vs Fama-French 5
Test FF5 α t-stat
0.09
not significant
Monthly turnover
11%
of the long leg, per rebalance
Cumulative return (LS)
29%
over 331 months
This fund holds the long leg only
Long leg Sharpe
0.61
what this fund holds
Long leg ann. return
11.8%
buyable, long-only
Long-short Sharpe
0.14
requires shorting
Bottom bucket ann. return
9.8%
the basket shorted

Every other metric on this page is the long-shortstrategy, which needs a short book. This fund is the long leg alone, so these are the figures for what it actually holds. The bottom-bucket number is that basket’s own return — not short P&L.

Hypothetical growth of $1 — long-short backtest

Gross of the placeholder expense ratio and trading costs · not investor results

331 months

Holdings

Every constituent of the long leg — sort, search or filter by sector

142 of 142 · 100.0% of book
TickerCompanySectorMarket capWeight
1FC
FRANKLIN COVEY COIndustrials$229M
1.11%
2UP
WHEELS UP EXPERIENCE INCIndustrials$229M
1.11%
3BIII
BLACK SPADE ACQUISITION III COIndustrials$229M
1.11%
4IRAB
IRIS ACQUISITION CORP IIIndustrials$228M
1.11%
5DGAC
DGACIndustrials$227M
1.11%
6DGAC.U
DISCIPLINED GROWTH ACQUISITION CORPIndustrials$227M
1.11%
7CRAC
CROWN RESERVE ACQUISITION CORP IIndustrials$227M
1.10%
8IPVVU
INTERPRIVATE INVESTMENT PARTNERS V INCIndustrials$223M
1.08%
9ONCH
1RT ACQUISITION CORPIndustrials$222M
1.08%
10PTACU
PATRIOT ACQUISITION CORPIndustrials$221M
1.08%
11IDACU
IRON DOME ACQUISITION I CORPIndustrials$221M
1.07%
12PTAC
PATRIOT ACQUISITION CORPIndustrials$219M
1.06%
13MIACU
MERIDIAN3 INDUSTRIALS ACQUISITION CORPIndustrials$218M
1.06%
14IDAC
IRON DOME ACQUISITION I CORPIndustrials$217M
1.05%
15GSHR
GESHER ACQUISITION CORP IIIndustrials$214M
1.04%
16SMHI
SEACOR MARINE HOLDINGS INCIndustrials$214M
1.04%
17EGHA
EGH ACQUISITION CORPIndustrials$213M
1.03%
18EVI
EVI INDUSTRIES INCIndustrials$213M
1.03%
19CCAQ
COLLECTIVE ACQUISITION CORPIndustrials$212M
1.03%
20PALO
PALOMA ACQUISITION CORP IIndustrials$211M
1.02%
21HAVA
HARVARD AVE ACQUISITION CORPIndustrials$209M
1.02%
22ALTG
ALTA EQUIPMENT GROUP INCIndustrials$208M
1.01%
23WLII
WILLOW LANE ACQUISITION CORP IIIndustrials$207M
1.01%
24AIRO
AIRO GROUP HOLDINGS INCIndustrials$205M
1.00%
25OHAC
OCEANHAWK ACQUISITION CORPIndustrials$203M
0.99%
26MRCOU
MERCATOR ACQUISITION CORPIndustrials$201M
0.98%
27LTGRU
LONG TABLE GROWTH CORPIndustrials$200M
0.97%
28FORR
FORRESTER RESEARCH INCIndustrials$200M
0.97%
29BEBE
TGE VALUE CREATIVE SOLUTIONS CORPIndustrials$200M
0.97%
30KTWO
K2 CAPITAL ACQUISITION CORPIndustrials$199M
0.97%
31FIGX
FIGX CAPITAL ACQUISITION CORPIndustrials$199M
0.97%
32TVIV
TEXAS VENTURES ACQUISITION IV CORPIndustrials$199M
0.97%
33LKSP
LAKE SUPERIOR ACQUISITION CORPIndustrials$198M
0.96%
34ETSS
ENERGY TRANSITION SPECIAL OPPORTUNITIESIndustrials$198M
0.96%
35PAL
PROFICIENT AUTO LOGISTICS INCIndustrials$197M
0.96%
36AIIA
AI INFRASTRUCTURE ACQUISITION CORPIndustrials$197M
0.96%
37RCMT
RCM TECHNOLOGIES INCIndustrials$196M
0.95%
38BIDWU
TRIBECA STRATEGIC ACQUISITION CORPIndustrials$192M
0.94%
39LFAC
LEAPFROG ACQUISITION CORPIndustrials$192M
0.93%
40AESPU
AEON ACQUISITION I CORPIndustrials$183M
0.89%
41EAF
GRAFTECH INTERNATIONAL LTDIndustrials$181M
0.88%
42PAAC
PROEM ACQUISITION CORP IIndustrials$177M
0.86%
43CHEC
CHENGHE ACQUISITION III COIndustrials$176M
0.86%
44BREZ
BREEZE ACQUISITION CORP IIIndustrials$176M
0.86%
45TAYD
TAYLOR DEVICES INCIndustrials$176M
0.86%
46APMCU
AMPERCAP ACQUISITION COIndustrials$175M
0.85%
47NUTR
NUSATRIP INCIndustrials$174M
0.85%
48AOUT
AMERICAN OUTDOOR BRANDS INCIndustrials$174M
0.84%
49PONO
PONO CAPITAL FOUR INCIndustrials$173M
0.84%
50ESP
ESPEY MFG & ELECTRONICS CORPIndustrials$172M
0.83%
51RANG
RANGE CAPITAL ACQUISITION CORPIndustrials$171M
0.83%
52TAVI
TAVIA ACQUISITION CORPIndustrials$170M
0.83%
53HQI
HIREQUEST INCIndustrials$168M
0.82%
54CTAA
CLEARTHINK 1 ACQUISITION CORPIndustrials$165M
0.80%
55NMP
NMP ACQUISITION CORPIndustrials$164M
0.80%
56EMIS
EMMIS ACQUISITION CORPIndustrials$161M
0.78%
57SAGU
SHREYA ACQUISITION GROUPIndustrials$160M
0.78%
58QRED
QUASAREDGE ACQUISITION CORPIndustrials$160M
0.78%
59GLED
GALAXYEDGE ACQUISITION CORPIndustrials$160M
0.78%
60WENC
WEST ENCLAVE MERGER CORPIndustrials$159M
0.78%
61LAFA
LAFAYETTE ACQUISITION CORPIndustrials$158M
0.77%
62SPEG
SILVER PEGASUS ACQUISITION CORPIndustrials$158M
0.77%
63FMAC
FUTURE MONEY ACQUISITION CORPIndustrials$158M
0.77%
64WPAC
WHITE PEARL ACQUISITION CORPIndustrials$157M
0.76%
65AP
AMPCO PITTSBURGH CORPIndustrials$156M
0.76%
66EML
EASTERN COIndustrials$154M
0.75%
67CEPS
CANTOR EQUITY PARTNERS VI INCIndustrials$152M
0.74%
68INAC
INDIGO ACQUISITION CORPIndustrials$152M
0.74%
69YCY
AA MISSION ACQUISITION CORP IIIndustrials$150M
0.73%
70APUR
APERTURE ACIndustrials$147M
0.71%
71TRAD
APEX TECH ACQUISITION INCIndustrials$146M
0.71%
72MYX
MAYWOOD ACQUISITION CORP 2Industrials$144M
0.70%
73RAIL
FREIGHTCAR AMERICA INCIndustrials$144M
0.70%
74RFIL
R F INDUSTRIES LTDIndustrials$143M
0.69%
75HURC
HURCO COMPANIES INCIndustrials$142M
0.69%
76PLUN
PLUTONIAN ACQUISITION CORP IIIndustrials$141M
0.68%
77SIF
SIFCO INDUSTRIES INCIndustrials$141M
0.68%
78OCAC.U
OCEAN CAPITAL ACQUISITION CORPIndustrials$140M
0.68%
79BHAV
BHAV ACQUISITION CORPIndustrials$140M
0.68%
80XFLH
XFLH CAPITAL CORPIndustrials$139M
0.67%
81RFAM
RF ACQUISITION CORP IIIIndustrials$138M
0.67%
82UAC
UNITED ACQUISITION CORP IIndustrials$138M
0.67%
83FTHA
FOREFRONT TECH HOLDINGS ACQUISITION CORPIndustrials$137M
0.67%
84OTAI
STARLINK AI ACQUISITION CORPIndustrials$137M
0.67%
85SCPQ
SOCIAL COMMERCE PARTNERS CORPIndustrials$137M
0.67%
86VECA
VERNAL CAPITAL ACQUISITION CORPIndustrials$132M
0.64%
87ALPXU
ALPEX ACQUISITION CORPIndustrials$130M
0.63%
88ALPX
ALPEX ACQUISITION CORPIndustrials$127M
0.62%
89IPEX
INFLECTION POINT ACQUISITION CORP VIndustrials$126M
0.61%
90VATE
INNOVATE CORPIndustrials$123M
0.60%
91PCSC
PERCEPTIVE CAPITAL SOLUTIONS CORPIndustrials$123M
0.60%
92BRKH
BURTECH ACQUISITION CORP IIIndustrials$119M
0.58%
93PGAC
PANTAGES CAPITAL ACQUISITION CORPIndustrials$118M
0.57%
94QUMS
QUANTUMSPHERE ACQUISITION CORPIndustrials$117M
0.57%
95CHAR
CHARLTON ARIA ACQUISITION CORPIndustrials$116M
0.56%
96CODA
CODA OCTOPUS GROUP INCIndustrials$113M
0.55%
97FWACU
FUTUREWAVE ACQUISITION CORPIndustrials$113M
0.55%
98FXACU
FORTUNEX ACQUISITION CORPIndustrials$110M
0.54%
99FXAC
FORTUNEX ACQUISITION CORPIndustrials$110M
0.53%
100QSEA
QUARTZSEA ACQUISITION CORPIndustrials$107M
0.52%
101SPKL
SPARK I ACQUISITION CORPIndustrials$105M
0.51%
102CHPG
CHAMPIONSGATE ACQUISITION CORPIndustrials$104M
0.51%
103NOEM
CO2 ENERGY TRANSITION CORPIndustrials$101M
0.49%
104RACC
RESEARCH ALLIANCE CORP IIIIndustrials$101M
0.49%
105AMAN
AMANAT ACQUISITION CORPIndustrials$98M
0.47%
106RACD
RESEARCH ALLIANCE CORP IVIndustrials$95M
0.46%
107CHRN
CHRONOSCALE CORPIndustrials$94M
0.46%
108LCCC
LAKESHORE ACQUISITION III CORPIndustrials$93M
0.45%
109ULBI
ULTRALIFE CORPIndustrials$92M
0.45%
110MCAH
MOUNTAIN CREST ACQUISITION 6 CORPIndustrials$90M
0.44%
111SIMA
SIM ACQUISITION CORP IIndustrials$90M
0.44%
112MMTX
MILUNA ACQUISITION CORPIndustrials$89M
0.43%
113ORIQ
ORIGIN INVESTMENT CORP IIndustrials$89M
0.43%
114BSAA
BEST SPAC I ACQUISITION CORPIndustrials$89M
0.43%
115OPXS
OPTEX SYSTEMS HOLDINGS INCIndustrials$89M
0.43%
116MHH
MASTECH DIGITAL INCIndustrials$89M
0.43%
117JATT
JATT II ACQUISITION CORPIndustrials$88M
0.43%
118ALIS
CALISA ACQUISITION CORPIndustrials$86M
0.42%
119FGMC
FG MERGER II CORPIndustrials$86M
0.42%
120CPBI
CENTRAL PLAINS BANCSHARES INCIndustrials$85M
0.41%
121APAC
STONEBRIDGE ACQUISITION II CORPIndustrials$83M
0.40%
122FVN
FUTURE VISION II ACQUISITION CORPIndustrials$83M
0.40%
123AUC
ATIF HOLDINGS LTDFinancial Services$82M
0.40%
124WSTN
WESTIN ACQUISITION CORPIndustrials$82M
0.40%
125DLHC
DLH HOLDINGS CORPIndustrials$80M
0.39%
126SSEA
STARRY SEA ACQUISITION CORPIndustrials$79M
0.38%
127WTG
WINTERGREEN ACQUISITION CORPIndustrials$76M
0.37%
128NBRG
NEWBRIDGE ACQUISITION LTDIndustrials$75M
0.37%
129TISI
TEAM INCIndustrials$75M
0.36%
130BPAC
BLUEPORT ACQUISITION LTDIndustrials$75M
0.36%
131AIRT
AIR T INCIndustrials$73M
0.35%
132KVAC
KEEN VISION ACQUISITION CORPIndustrials$68M
0.33%
133BGSF
BGSF INCIndustrials$65M
0.31%
134EURK
EUREKA ACQUISITION CORPIndustrials$60M
0.29%
135PECE
PEACE ACQUISITION CORPIndustrials$59M
0.29%
136CAPN
CAYSON ACQUISITION CORPIndustrials$59M
0.29%
137UYSC
UY SCUTI ACQUISITION CORPIndustrials$56M
0.27%
138FSHP
FLAG SHIP ACQUISITION CORPIndustrials$56M
0.27%
139LNZA
LANZATECH GLOBAL INCIndustrials$56M
0.27%
140IBAC
IB ACQUISITION CORPIndustrials$54M
0.26%
141RIBB
RIBBON ACQUISITION CORPIndustrials$54M
0.26%
142BKHA
BLACK HAWK ACQUISITION CORPIndustrials$50M
0.24%

Full long-leg book as of July 2026 · cap-weighted · total market cap $20.57B. Hypothetical model holdings — not a registered fund’s portfolio.

Sector Breakdown

2 sectors
Industrials
99.6%
Financial Services
0.4%

Portfolio Style

Size × value map of the long-leg book

142 classified
Value
Blend
Growth
Large
Mid
Small
·
·
·
·
·
·
13%21
6%9
31%49

Share of long-leg capital by market cap × book-to-market, using terciles of the 706-name universe at July 2026. Rows: Large ≥ $2.8B, Small < $315M. Columns: Value ≥ 0.60, Growth < 0.34 B/M. The dot marks the capital-weighted centroid of the book — 0% toward Large, 68% toward Growth. +50% unclassified (63 missing size/value). Hypothetical holdings — descriptive, not realized P&L.

Tilt over time
Size tilt0% → Large
SmallLarge
Value ↔ growth tilt68% → Growth
ValueGrowth

Capital-weighted centroid of the long leg, December 1998July 2026; the right-hand end is the same value as the box’s dot. 142 names now. Hypothetical holdings — descriptive, not P&L.

Constraint checks

How this book measures against the concentration and liquidity rules — as implemented here

How this book was built

These are UNCONSTRAINED factor sleeves: the construction pipeline sorts on a signal and cap-weights the top bucket, applying no issuer cap, no industry cap and no liquidity screen beyond the universe filter. A failing test therefore reports a constraint that was never applied during construction — it is not a defect in the strategy and not an error in the data. The same signal can be solved subject to these constraints.

Passed
4
Failed
2
Not tested
1
Independent checks
7

7 independent checks plus 1 arithmetically implied by another check (RIC / IRC 851(b)(3)(A) 50% bucket), which is reported separately so the tally cannot overstate scrutiny.

1 of 7 checks could not be tested. Those are neither passes nor failures — they are gaps in what the data can answer, and they are excluded from the passed count above rather than folded into it.

  • Days required to liquidate the largest position at 20% of one day's dollar volume.

    Required
    <= 7.0 days
    Actual
    unbounded
    Margin
  • No more than 15% of net assets may be held in illiquid investments.

    Required
    <= 15.0%
    Actual
    75.8%
    Margin
    -60.8%
Reported separately — arithmetically implied

Engineering approximation of the cited rules for a DRAFT / HYPOTHETICAL model portfolio that is not a registered fund. This reports whether the portfolio passes the stated test AS IMPLEMENTED HERE; it is not a compliance opinion and is not a statement that any fund is compliant. Real filings need securities counsel.

No verdict sits within 1.0pp of its limit.

Data version — panel=20260719T025334 rows=2239262 asof=202607 issuers=20260719T014536 rates=20260804T224700

Measured on the 2026-07 formation date across 142 holdings (cap-weighted). A different formation date can produce different verdicts.

Derivatives risk (Rule 18f-4)

Whether this long-only book is subject to the VaR tests at all

This assessment describes the long-only book this fund holds — the top bucket only.

Governing rule
Rule 18f-4(c)(4) limited derivatives user exception

This fund QUALIFIES for the limited-derivatives-user exception, so it is excepted from the VaR tests; the ratio below is informational, not the operative limit.

Limited derivatives user exceptionby construction

Rule 18f-4(c)(4): a fund whose derivatives exposure (gross notional, including the value of assets sold short) is <= 10% of net assets is excepted from the VaR tests and the full derivatives risk management program.

Qualifies
Required
<= 10% of net assets
Exposure
0% of net assets
Margin
+10pp

No confidence interval: this follows from portfolio construction, not from an estimate.

Rule 18f-4(c)(2)(i): fund VaR at 99% over 20 trading days must not exceed 200% of the designated reference portfolio's VaR on the same basis.

Informational — does not govern

This fund is excepted from the VaR tests, so the ratio below is context rather than the operative limit. It is shown because it is still a description of the book’s risk, not because it decides anything.

Measured
1.3 (95% CI 1.2-1.6)
x reference VaR
Limit
2.00x
<= 2.00x reference VaR
Fund VaR
12.9%
99% / 20d
Reference
9.6%
FF5 market (mkt)

historical method · 331 monthly observations · about 3.3 in the 99% tail · paired percentile bootstrap over months

Same test, three estimators
historical
1.34x
within
parametric
1.22x
within
cornish fisher
1.38x
within

The estimators agree, which is mild evidence the number isn’t an artefact of one method.

Engineering approximation of SEC Rule 18f-4 for research display. Not a compliance opinion and not a determination that any fund is compliant. Hypothetical model portfolio, not a registered fund.

The research long-short construction behind this factor does not qualify for this exception — a dollar-neutral book counts its full short notional, which is 100% of net assets against a 10% threshold. This product sidesteps that by holding the long leg alone, which is also why the long-leg Sharpe is reported separately throughout the site.

See the long-short verdict on the factor page →

Since publication

Did the edge survive the paper coming out?

published 1981
Entirely since publication
All 331 months of our record post-date the 1981 paper.
Sharpe 0.142.0% p.a.January 1999July 2026

There is no “before” to compare against — the predictor was already public when our data begins, so every month shown is out-of-sample relative to the original study.

Split at January of the year after the factor was published. The post-publication stretch IS genuinely out-of-sample relative to the original study -- the predictor was public by then -- so it speaks to whether the effect survived being known. Nothing is fitted here, so this is performance SINCE PUBLICATION, not validation of a model. Note the 'pre' side is our data before publication (our panel starts ~1999), NOT the study's original in-sample period, which usually ran decades earlier; a decay figure compares before-vs-after within our sample and is not a comparison against the published result.

Consistency across eras

Is this record broadly durable, or one regime?

26 windows
Positive windows
46%
12 of 26 3-year windows made money
Worst window
-0.91
Sharpe, January 2023 – December 2025
January 1999July 2026
Median Sharpe
-0.16
Dispersion
0.84
Best window
1.70

3-year rolling windows, stepping 1 year (26 windows). Dispersion is the spread of window Sharpes — higher means the record depends more on which era you look at.

Rules-based factors fit no parameters, so these windows are not out-of-sample tests and do not validate a fitted model. They show whether the factor's record is consistent across eras or driven by one regime.

Returns

Long leg is what this fund holds — long-short is shown for reference

since January 1999
Trailing
PeriodLong legLong-short
1 yearcum.9.5%-4.2%
3 yearsp.a.5.2%-10.9%
5 yearsp.a.4.0%-9.0%
10 yearsp.a.6.7%-6.1%
Since inceptionp.a.10.4%0.9%
Calendar years
YearLong legLong-short
20267 mo6.8%-3.0%
20255.5%-11.1%
20244.9%-11.4%
20237.1%-15.2%
2022-1.8%3.1%
20213.9%-14.5%
20206.5%-0.2%
201916.8%-8.7%
2018-11.0%0.4%
201716.7%-4.7%
201622.5%6.2%
2015-23.2%-23.0%
20140.3%-9.2%
201360.5%13.9%
20125.6%-8.2%
2011-10.8%-9.2%
201032.6%4.9%
200942.8%15.4%
2008-36.9%7.7%
200716.8%3.1%
200633.9%18.4%
200517.3%12.3%
200439.5%18.5%
200370.2%27.5%
2002-5.8%21.6%
200144.3%53.1%
2000-9.8%-10.7%
1999-0.2%-18.0%

Long leg = the top bucket this fund holds; long-short additionally shorts the bottom bucket and is not achievable in a long-only vehicle. Trailing figures run through July 2026: 1 year is a plain cumulative 12-month return (cum.), 3 years and longer are annualised (p.a.). Years marked with a month count are partial. These match the fact sheet’s tables by construction. Hypothetical backtest, gross of the placeholder expense ratio and trading costs — not investor results.

Fund Facts

Ticker (pseudo)FSII
IssuerETF Foundry Research (hypothetical)
SeriesHypothetical Model Portfolio Series (not a registered trust)
Expense ratio0.45% (placeholder)
Inception2019-10-20 (placeholder)
Listing exchangeNot listed (hypothetical)
CUSIPNot applicable (hypothetical model portfolio)
RebalanceMonthly
Holdings as ofJuly 2026
Total mkt cap (long leg)$20.57B

Methodology

The Foundry Industrials Small Size Factor ETF tracks a rules-based model that ranks Industrials common stocks each month by a Small Size signal and holds the top quintile with the lowest values. Signals are computed from point-in-time Sharadar fundamentals and total-return prices. The portfolio reconstitutes monthly and is cap-weighted within the long leg.

This is a hypothetical model portfolio for research display only — not a registered fund, not an offer, and not investment advice.

Documents (draft — hypothetical)

Auto-generated from the model’s metrics and current holdings. Every document is labeled DRAFT / hypothetical.

Summary Prospectus

Objective, fees, strategy, and key risks.

View →
Prospectus

Full strategy, model methodology, and risks.

View →
Statement of Additional Information

Policies, construction, and governance.

View →
Fact Sheet

One-page snapshot with top holdings.

View →
Daily Holdings

Full current constituent list.

View →

DRAFT — HYPOTHETICAL MODEL PORTFOLIO — NOT A REGISTERED FUND, NOT AN OFFER TO SELL SECURITIES, NOT INVESTMENT ADVICE.