13F Insight
DOSSIER · 13F-HR · Q2 2026

Corundum Group, Inc.

$337M in tracked AUM across 112 positions as of Q2 2026.

CG
CIK 0001486083 · last filed Jun 30, 2026
Total AUM
$337M
as of Q2 2026
Holdings
112
—
positions
Whale Score
53
53
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026

Corundum Group, Inc. filed its latest 13F-HR for Q2 2026. See the latest holdings and position changes below.

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
IWF
ISHARES RUSSELL 1000 GROWTH ET
$42M342K12.6%02
IWD
ISHARES RUSSELL 1000 VALUE ETF
$41M167K12.0%03
EFA
ISHARES MSCI EAFE ETF
$17M165K5.1%04
MMM
3M COMPANY
$16M99K4.8%05
IWO
ISHARES RUSSELL 2000 GROWTH ET
$14M35K4.1%06
IWN
ISHARES RUSSELL 2000 VALUE ETF
$12M53K3.5%07
IWP
ISHARES RUSSELL MID CAP GROWTH
$11M76K3.3%08
IWS
ISHARES RUSSELL MID CAP VALUE
$10M62K3.0%09
LMT
LOCKHEED MARTIN CORP
$10M19K2.9%10
SPY
STATE STREET SPDR S&P 500 ETF
$9M13K2.8%

Filing history

2026Q2Jun 30
$337M▲ 12.7%
112 positionsView →2026Q1Mar 31
$299M▲ 0.4%
108 positionsView →2025Q4Dec 31
$298M▲ 22.4%
113 positionsView →2025Q3Sep 30
$243M▲ 7.6%
103 positionsLocked2025Q2Jun 30
$226M▲ 8.5%
103 positionsLocked2025Q1Mar 31
$209M▼ 22.1%
98 positionsLocked2024Q4Dec 31
$268M▲ 22.2%
100 positionsLocked2024Q3Sep 30
$219M▼ 14.4%
100 positionsLocked2024Q2Jun 30
$256M▲ 23.4%
101 positionsLocked2024Q1Mar 31
$207M▲ 4.0%
98 positionsLocked2023Q4Dec 31
$199M▲ 13.3%
100 positionsLocked2023Q3Sep 30
$176M▼ 12.2%
102 positionsLocked
Showing 12 of 61