Corundum Trust Company, INC
CIK 0001987720 · SIOUX FALLS, SD · Quarter end: 2026-06-30 · Filed on: 2026-07-29 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$37.4M
2026 Q2
Positions
28
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
74.4%
Est. Net Flow (Q)
—
2026 Q2
Top Holdings
MMM
3M COMPANY
17.0%
IJR
ISHARES CORE S&P SMALL CAP ETF
12.4%
DVY
ISHARES SELECT DIVIDEND ETF
7.9%
IJK
ISHARES S&P MID CAP 400 GROWTH
7.0%
IVV
ISHARES CORE S&P 500 ETF
6.6%
IJJ
ISHARES S&P MID CAP 400 VALUE
5.2%
AAPL
APPLE INC
5.0%
GOOG
ALPHABET INC CLASS C CAPITAL S
5.0%
New / Increased
No prior quarter data
Reduced / Exited
No prior quarter data
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.