CT

Corundum Trust Company, INC

Diversified strategyMomentum followerQuality / disciplined sizing

Total reported value

$43.8M

Reporting period: 2026-03-31 · Number of holdings: 48

Corundum Trust Company, INC disclosed 48 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $43.8M and a quarterly turnover rate of 16.3%.

Personality snowflake

Concentration
19.34
Portfolio Stability
16.33
Momentum/Contrarian
100
Sector conviction
65.89
Diversification
96
Sizing Uniformity
88.39

Recent moves

  • Trim 88579y101

    +0.3%　-$564.1K

  • Trim MSFT

    +0.6%　-$533.1K

  • Add SPY

    +86.1%　$349.8K

  • Trim GOOG

    -9.5%　-$317.9K

  • Add IJR

    +4.7%　$300.8K

  • Add DVY

    0.0%　$193.8K

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#TickerIssuerAsset SubclassWeightWeight ChangeShares Change4Q Trend
1✓ 3m CoStock-Other13.03%-1.24%+0.32%
2IJRIshares Core S&p Small-cap EETF-Small Cap8.94%+0.71%+4.72%
3DVYIshares Select Dividend ETFETF-Other6.52%+0.46%—
4IJKIshares S&p Mid-cap 400 GrowETF-Other5.14%+0.34%+2.81%
5IVVIshares Core S&p 500 ETFETF-Large Cap & Growth4.93%+0.34%+12.33%
6MSFTMicrosoft CORPStock-Tech4.08%-1.20%+0.60%
7IJJIshares S&p Mid-cap 400 ValuETF-Other3.98%——
8AAPLApple INCStock-Tech3.77%-0.06%+5.22%
9✓ Skeena Resources Limited New CStock-Other3.75%+0.31%-13.33%
10DSVSFDiscovery Silver CORPStock-Other3.62%—-3.88%
11GOOGAlphabet Inc.Stock-Comm Services3.49%-0.71%-9.45%
12EFAIshares Msci Eafe ETFETF-Other2.81%+0.12%+2.69%
13✓ Stock-Other2.55%+0.16%-6.61%
14LLYEli Lilly & CoStock-Healthcare2.30%-0.33%+1.77%
15LUGDFLundin Gold INCStock-Other1.91%-0.17%—
16SPYState Street SPDR S&P 500 ETF TrustETF-Large Cap & Growth1.83%+0.80%+86.10%
17✓ J P Morgan Chase And CoStock-Other1.66%-0.13%+1.39%
18✓ Wesdome Gold Mines LTDStock-Other1.55%-0.26%-20.83%
19✓ Stock-Other1.47%-0.30%—
20✓ Stock-Other1.40%+0.09%—
21CSCOCisco Systems, Inc.Stock-Tech1.37%—+1.36%
22✓ Stock-Other1.34%-0.15%-7.14%
23✓ Ishares S And P/tsx Capped EneStock-Other1.25%+1.25%NEW
24✓ Vanguard Russell 3000 ETFETF-Other1.24%-0.05%—
25FNVFranco-nevada CORPStock-Materials1.13%+0.19%—
26NEMNewmont CORPStock-Materials0.99%+0.08%—
27AEMAgnico Eagle Mines LTDStock-Materials0.93%+0.16%—
28UNHUnitedHealth Group IncorporatedStock-Healthcare0.93%-0.20%—
29CCitigroup INCStock-Financials0.86%——
30UGIUgi CORPStock-Utilities0.81%+0.81%NEW
31AMZNAmazon.com INCStock-Consumer Disc0.81%-0.07%+1.85%
32IVWIshares S&p 500 Growth ETFETF-Large Cap & Growth0.80%+0.80%NEW
33UNPUnion Pacific CORPStock-Industrials0.77%+0.04%—
34BRK-BBerkshire Hathaway Inc-cl BStock-Other0.71%—+2.35%
35KGCKinross Gold CORPStock-Materials0.70%+0.06%—
36EEMIshares Msci Emerging MarketETF-Emerging Markets0.62%——
37✓ Snowline Gold CORP ComStock-Other0.61%-0.16%—
38✓ Stock-Other0.60%-0.17%-25.00%
39✓ First Majestic Silver CORP ComStock-Other0.59%+0.13%—
40TMOThermo Fisher Scientific INCStock-Healthcare0.56%-0.10%—
41✓ G Mining Ventures CORP New ComStock-Other0.56%+0.08%—
42IVEIshares S&p 500 Value ETFETF-Large Cap & Growth0.54%+0.54%NEW
43✓ Vizsla Silver CORP Com No ParStock-Other0.53%-0.34%—
44MRKMerck & Co., Inc.Stock-Healthcare0.50%+0.50%NEW
45✓ Nthn Star Res LTD NpvStock-Other0.45%-0.30%-27.03%
46SXGCFSouthern Cross Gold ConsolidStock-Other0.42%-0.11%—
47✓ Rupert Resources LTDStock-Other0.35%-0.33%-47.24%
48OGNNFOrogen Royalties INCStock-Other0.30%+0.08%—

Holding changes this quarter

Corundum Trust Company, INC's most significant position changes for 2026-03-31: New buy: Ishares S And P/tsx Capped Ene; New buy: Ugi CORP (UGI); New buy: Ishares S&p 500 Growth ETF (IVW); New buy: Ishares S&p 500 Value ETF (IVE); New buy: Merck & Co., Inc. (MRK).

Position changes disclosed by Corundum Trust Company, INC for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#TickerIssuerWeight ChangeShares ChangeAction
1SPYState Street SPDR S&P 500 ETF Trust+0.8%+86.10%Add
2IJRIshares Core S&p Small-cap E+0.7%+4.72%Add
3DVYIshares Select Dividend ETF+0.5%—Unchanged
4IVVIshares Core S&p 500 ETF+0.3%+12.33%Add
5IJKIshares S&p Mid-cap 400 Grow+0.3%+2.81%Add
6✓ Skeena Resources Limited New C+0.3%-13.33%Trim
7FNVFranco-nevada CORP+0.2%—Unchanged
8✓ +0.2%-6.61%Trim
9AEMAgnico Eagle Mines LTD+0.2%—Unchanged
10✓ First Majestic Silver CORP Com+0.1%—Unchanged
11EFAIshares Msci Eafe ETF+0.1%+2.69%Add
12✓ +0.1%—Unchanged
13OGNNFOrogen Royalties INC+0.1%—Unchanged
14NEMNewmont CORP+0.1%—Unchanged
15✓ G Mining Ventures CORP New Com+0.1%—Unchanged
16KGCKinross Gold CORP+0.1%—Unchanged
17UNPUnion Pacific CORP0%—Unchanged
18✓ Vanguard Russell 3000 ETF-0.1%—Unchanged
19AAPLApple INC-0.1%+5.22%Add
20AMZNAmazon.com INC-0.1%+1.85%Add
21TMOThermo Fisher Scientific INC-0.1%—Unchanged
22SXGCFSouthern Cross Gold Consolid-0.1%—Unchanged
23✓ J P Morgan Chase And Co-0.1%+1.39%Add
24✓ -0.2%-7.14%Trim
25✓ Snowline Gold CORP Com-0.2%—Unchanged
26LUGDFLundin Gold INC-0.2%—Unchanged
27✓ -0.2%-25.00%Trim
28UNHUnitedHealth Group Incorporated-0.2%—Unchanged
29✓ Wesdome Gold Mines LTD-0.3%-20.83%Trim
30✓ -0.3%—Unchanged
31✓ Nthn Star Res LTD Npv-0.3%-27.03%Trim
32LLYEli Lilly & Co-0.3%+1.77%Add
33✓ Rupert Resources LTD-0.3%-47.24%Trim
34✓ Vizsla Silver CORP Com No Par-0.3%—Unchanged
35GOOGAlphabet Inc.-0.7%-9.45%Trim
36MSFTMicrosoft CORP-1.2%+0.60%Add
37✓ 3m Co-1.2%+0.32%Add
38✓ Ishares S And P/tsx Capped Ene—NEWNew buy
39UGIUgi CORP—NEWNew buy
40IVWIshares S&p 500 Growth ETF—NEWNew buy
41IVEIshares S&p 500 Value ETF—NEWNew buy
42MRKMerck & Co., Inc.—NEWNew buy
43✓ Or Royalties INC Com—EXITSold out
44✓ Aurion Resources LTD—EXITSold out
45✓ Ramelius Resources LTD US List—EXITSold out
46✓ Onyx Gold CORP Com—EXITSold out
47✓ Deep Yellow Limited Ordinary S—EXITSold out
48✓ Banyan Gold CORP Cl A—EXITSold out
49✓ —EXITSold out
50WLFFFWolfden Resources CORP—EXITSold out

FAQ

What is Corundum Trust Company, INC and what type of investor is it?
Corundum Trust Company, INC is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $43.8M, spread across 48 disclosed positions.
What are Corundum Trust Company, INC's largest equity positions?
Based on the latest 13F filing, Corundum Trust Company, INC's top holdings by market value are: 1. 3m Co — $5.7M (13.0%) 2. Ishares Core S&p Small-cap E (IJR) — $3.9M (8.9%) 3. Ishares Select Dividend ETF (DVY) — $2.9M (6.5%) 4. Ishares S&p Mid-cap 400 Grow (IJK) — $2.2M (5.1%) 5. Ishares Core S&p 500 ETF (IVV) — $2.2M (4.9%)
What changes did Corundum Trust Company, INC make in its most recent portfolio filing?
In the latest reported quarter, Corundum Trust Company, INC made 32 notable position adjustments: 5 new positions were initiated, 11 existing holdings were added to, 8 positions were partially reduced, and 8 were completely exited. The largest of these moves: New buy: Ishares S And P/tsx Capped Ene; New buy: Ugi CORP (UGI); New buy: Ishares S&p 500 Growth ETF (IVW); New buy: Ishares S&p 500 Value ETF (IVE); New buy: Merck & Co., Inc. (MRK)
What sectors does Corundum Trust Company, INC focus on?
Corundum Trust Company, INC is concentrated in the following sectors based on its current disclosed equity portfolio: • Information Technology: 37.3% • Health Care: 17.4% • Materials: 15.1% • Communication Services: 14.1% • Financials: 6.4% • Utilities: 3.3%