Corundum Trust Company, INC

CIK 0001987720 · Q1 2026

13F Equity AUM

$43.8M

-0.3% QoQ

Positions

-3 QoQ

AUM Rank

#10,955

Top 88%

Skill Alpha (FF)

+0.3%/yr^ns

No Clear Edge

Rank #2,122 · Top 26%

vs S&P -0.9%/yr (unadj.)

Quarters Tracked

~2 years

Portfolio Concentration

Top 5: 38.6%Top 10: 57.8%Top 20: 78.7%

MMM13.0%

IJR8.9%

DVY6.5%

IJK5.1%

IVV4.9%

MSFT4.1%

IJJ4.0%

AAPL3.8%

SKEENA RESOURCES LIMITED NEW C3.8%

DSV3.6%

Others (38)42.2%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Financial Services39.7%

Basic Materials13.9%

Industrials13.8%

Unclassified12.2%

Technology9.2%

Healthcare6.0%

Communication Services3.5%

Other1.6%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 48Median: 1.19%Avg: 2.08%

0–0.5%

4(1.5%)

0.5–1%

19(13.4%)

1–3%

14(23.8%)

3–5%

7(27.6%)

5%+

4(33.6%)

Count of positions per weight bucket — (%) = combined portfolio weight

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Portfolio Overlap

Shared: 22Unique: 26vs 20 funds

0.3%Low

Fund positions

7,299

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Most Similar Funds

Top 9 benchmark funds with highest portfolio overlap (Jaccard similarity)

FMR LLC

0.8%

MORGAN STANLEY

0.4%

JPMORGAN CHASE & CO

0.5%

BANK OF AMERICA CORP /DE/

0.5%

BlackRock, Inc.

0.5%

VANGUARD CAPITAL MANAGEMENT LLC

0.4%

STATE STREET CORP

0.4%

GEODE CAPITAL MANAGEMENT, LLC

0.4%

VANGUARD PORTFOLIO MANAGEMENT LLC

0.4%

Jaccard similarity per fund: shared CUSIPs / (fund A + fund B − shared). Higher values indicate more similar portfolios.

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Position Changes This Quarter

New5Increased13Decreased9Exited8

New Positions

ISHARES S AND P/TSX …1.3%

+28K

UGI0.8%

+10K

IVW0.8%

+3K

IVE0.5%

+1K

MERCK & CO INC0.5%

+2K

Increased

IJR8.9%

+1K(+5%)

IJK5.1%

+610(+3%)

STATE STREET SPDR S&…1.8%

+570(+86%)

IVV4.9%

+363(+12%)

EFA2.8%

+332(+3%)

AAPL3.8%

+323(+5%)

MMM13.0%

+125(+0%)

CSCO1.4%

+104(+1%)

JPMORGAN CHASE &…1.7%

+34(+1%)

AMZN0.8%

+31(+2%)

Decreased

RUPRF0.3%

-30,000(-47%)

DSV3.6%

-10,000(-4%)

EVOLUTION MINING LTD…0.6%

-10,000(-25%)

GREATLAND RES LTD OR…2.5%

-10,000(-7%)

WESDOME GOLD MINES L…1.6%

-10,000(-21%)

SKEENA RESOURCES LIM…3.8%

-8,500(-13%)

NTHN STAR RES LTD NP…0.5%

-5,000(-27%)

NGEX MINERALS LTD NE…1.3%

-2,500(-7%)

GOOG3.5%

-556(-9%)

Exited

OR ROYALTIES INC COM

-6,000

AIRRF

-156,125

RAMELIUS RESOURCES L…

-34,785

ONYX GOLD CORP COM

-75,000

DEEP YELLOW LIMITED …

-62,162

BANYAN GOLD CORP CL …

-100,000

GOGOLD RESOURCES INC

-30,000

WLF

-398,802

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

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Holdings

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