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Corundum Group, Inc.
Period ended Sep 30, 2026 · Latest filing Oct 28, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2026: $380,065,583
More quarters will appear as history becomes available.
Top holdings
Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- ISHARES RUSSELL 1000 GROWTH ET · CS · 464287614 · shares: $43,110,609
- ISHARES RUSSELL 1000 VALUE ETF · CS · 464287598 · shares: $41,455,632
- 3M COMPANY · CS · 88579y101 · shares: $22,730,835
- ISHARES MSCI EAFE ETF · CS · 464287465 · shares: $18,657,397
- ISHARES RUSSELL 2000 GROWTH ET · CS · 464287648 · shares: $12,335,178
- ISHARES RUSSELL 2000 VALUE ETF · CS · 464287630 · shares: $10,859,564
- STATE STREET SPDR S&P 500 ETF · CS · 78462f103 · shares: $10,622,673
- ISHARES RUSSELL MID CAP GROWTH · CS · 464287481 · shares: $10,557,165
- APPLE INC · CS · 037833100 · shares: $10,370,035
- ISHARES RUSSELL MID CAP VALUE · CS · 464287473 · shares: $10,005,422
Reported holdings
122 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| ISHARES MSCI EMERGING MARKETS | CS | 464287234 | — | 4,810 shares | $321,260 |
| SPOTIFY TECHNOLOGY S A SHS SPO | CS | l8681t102 | — | 610 shares | $297,302 |
| INTUITIVE SURGICAL INC COM | CS | 46120e602 | — | 731 shares | $297,247 |
| VANGUARD INDEX FUNDS VANGUARD | CS | 922908736 | — | 3,282 shares | $295,741 |
| PALO ALTO NETWORKS INC COMMON | CS | 697435105 | — | 741 shares | $294,407 |
| ISHARES TRUST ISHARES MSCI USA | CS | 46432f339 | — | 1,300 shares | $288,912 |
| VANGUARD FTSE EMERGING MARKETS | CS | 922042858 | — | 4,683 shares | $277,749 |
| MONOLITHIC POWER SYS INC | CS | 609839105 | — | 203 shares | $273,486 |
| CADENCE DESIGN SYSTEMS INC | CS | 127387108 | — | 807 shares | $266,459 |
| CINTAS CORP | CS | 172908105 | — | 1,348 shares | $262,941 |
| VANGUARD INDEX FUNDS VANGUARD | CS | 922908629 | — | 3,320 shares | $260,354 |
| VANGUARD BD INDEX FDS VANGUARD | CS | 92203c303 | — | 5,069 shares | $251,169 |
| WEST PHARMACEUTICAL SVCS INC C | CS | 955306105 | — | 675 shares | $250,263 |
| UBER TECHNOLOGIES INC COMMON S | CS | 90353t100 | — | 3,559 shares | $243,827 |
| DIMENSIONAL ETF TRUST DIMENSIO | CS | 25434v724 | — | 4,331 shares | $238,205 |
| VANGUARD ADMIRAL FDS INC S&P M | CS | 921932844 | — | 2,097 shares | $224,127 |
| REPUBLIC SERVICES INC | CS | 760759100 | — | 1,060 shares | $222,462 |
| CHARLES SCHWAB CORP NEW | CS | 808513105 | — | 2,254 shares | $220,306 |
| PROGRESSIVE CORP-OHIO | CS | 743315103 | — | 1,046 shares | $216,846 |
| VAIL RESORTS INC | CS | 91879q109 | — | 1,500 shares | $205,770 |
| SAMSARA INC CLASS A COMMON STO | CS | 79589l106 | — | 5,279 shares | $201,288 |
| FUTUREONE INC | CS | 36114m108 | — | 100,000 shares | $0 |