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13F-HR filed by Corundum Group, Inc.

Corundum Group, Inc. filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-08-07, with 112 holding rows worth $337,147,794.

Accession
0001486083-26-000003
Filed
2026-08-07
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2026

A holdings report, 112 entries on the cover page, a total value of $337,147,794 stated on the cover page (in dollars after the unit check, H1), rows summing to $337,147,794 with VALUE read as dollars as filed, 13F file number 028-13880. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
ISHARESRUSSELL1000GROWTHETF464287614STOK341,716$42,430,876dollars as filed
ISHARES RUSSELL 1000 VALUE ETF464287598ETF167,207$40,535,993dollars as filed
ISHARES TR464287465MSCI EAFE ETF164,969$17,136,980dollars as filed
3M CO COM88579Y101Stock99,383$16,091,102dollars as filed
ISHARES TR464287648RUS 2000 GRW ETF34,722$13,679,079dollars as filed
ISHARES TR464287630RUS 2000 VAL ETF53,073$11,739,748dollars as filed
ISHARES RUSSELL MID-CAP GROWTH ETF464287481ETF76,317$11,173,572dollars as filed
ISHARES RUSSELL MID-CAP VALUE ETF464287473ETF61,801$10,172,445dollars as filed
Lockheed Martin Corporation539830109COM19,045$9,702,666dollars as filed
SPY78462F103SHS12,537$9,362,255dollars as filed
ISHARES TR464288802ESG OPTIMIZED47,936$7,396,525dollars as filed
Linde plcG54950103COM13,913$7,220,012dollars as filed
Apple Inc037833100COM24,451$7,075,248dollars as filed
VANGUARD SCOTTSDALE FDS92206C714COM47,826$5,084,382dollars as filed
Microsoft Corp594918104COM12,510$4,666,480dollars as filed
ISHARES RUSSELL 1000 ETF464287622ETF10,981$4,496,719dollars as filed
iShares Russell 2000 ETF464287655SHS14,006$4,208,103dollars as filed
Intel Corp458140100COM29,853$4,168,374dollars as filed
Caterpillar Inc.149123101COM3,337$3,553,571dollars as filed
INVESCO EXCH TRADED FD TR II46138E354S&P500 LOW VOL47,322$3,544,418dollars as filed
NVIDIA Corp67066G104COM17,476$3,496,773dollars as filed
Alphabet Inc. Reg. Shares A02079K305COM9,763$3,489,003dollars as filed
SPDR GOLD TR78463V107GOLD SHS9,401$3,463,140dollars as filed
Alphabet Inc. Reg. Shares C02079K107COM9,510$3,360,168dollars as filed
SPDR SER TR STATE STR SPDR PORT S&P 500 ETF78464A854SHS37,204$3,269,488dollars as filed
JPMorgan Chase & Co46625H100COM9,835$3,219,291dollars as filed
Vanguard S&P 500 ETF922908363COM4,152$2,851,635dollars as filed
iShares S&P 500 Growth ETF464287309SHS20,435$2,810,426dollars as filed
EXXON MOBIL CORP30233Q108COM18,821$2,573,207dollars as filed
Broadcom Inc.11135F101COM6,786$2,563,411dollars as filed
Utilities Select Sector SPDR Fund81369Y886SHS53,375$2,420,022dollars as filed
Cisco Systems,Inc.17275R102COM20,236$2,376,921dollars as filed
FIRST TR EXCHANGE TRAD FD VI33739H101FST TR GLB FD84,182$2,277,123dollars as filed
NUSHARES ETF TR67092P607NUVEEN ESG SMLCP43,317$2,257,682dollars as filed
IJH464287507COM27,055$2,086,211dollars as filed
Amazon.com, Inc023135106COM8,601$2,049,962dollars as filed
Visa Inc92826C839COM5,950$2,041,385dollars as filed
Eli Lilly and Company532457108COM1,681$2,016,242dollars as filed
AbbVie,Inc.00287Y109COM8,000$2,013,120dollars as filed
Johnson & Johnson478160104COM7,755$1,969,537dollars as filed
Goldman Sachs Group,Inc.38141G104COM1,897$1,918,569dollars as filed
USBANCORPDEL902973304COM NEW28,013$1,691,985dollars as filed
ECOLAB INC COM278865100Stock5,646$1,573,032dollars as filed
Bristol-Myers Squibb Company110122108COM25,813$1,487,345dollars as filed
Home Depot, Inc437076102COM4,102$1,446,693dollars as filed
Bank of America Corp060505104COM24,897$1,418,631dollars as filed
Costco Wholesale Corporation22160K105COM1,507$1,409,753dollars as filed
Merck & Co.,Inc.58933Y105COM10,703$1,375,335dollars as filed
Duke Energy Corporation26441C204COM10,621$1,344,406dollars as filed
Waste Management, Inc.94106L109COM6,016$1,340,846dollars as filed
Walmart Inc.931142103COM11,835$1,340,407dollars as filed
Amgen Inc.031162100COM3,678$1,331,877dollars as filed
iShares S&P 500 Value ETF464287408SHS5,790$1,314,677dollars as filed
Berkshire Hathaway Inc084670702COM2,589$1,295,510dollars as filed
MasterCard, Inc57636Q104COM2,508$1,288,109dollars as filed
Oracle Corporation68389X105COM8,301$1,216,512dollars as filed
Micron Technology,Inc.595112103COM1,038$1,198,153dollars as filed
Coca-Cola Company191216100COM12,485$1,014,656dollars as filed
Boeing Company097023105COM4,610$997,927dollars as filed
META PLATFORMS INC CL A30303M102COM1,745$982,941dollars as filed
Automatic Data Processing,Inc.053015103COM4,347$973,511dollars as filed
Chevron Corporation166764100COM5,873$973,508dollars as filed
McDonalds Corporation580135101COM3,408$921,216dollars as filed
Abbott Laboratories002824100COM9,802$889,433dollars as filed
Procter & Gamble Co742718109COM5,954$873,095dollars as filed
FEDEX CORP COM31428X106Stock2,782$871,128dollars as filed
Medtronic PlcG5960L103COM10,694$836,592dollars as filed
Pfizer Inc.717081103COM34,264$825,077dollars as filed
United Parcel Service,Inc. Class B911312106COM7,593$816,208dollars as filed
XCELENERGY INC98389B100COM9,911$795,853dollars as filed
Walt Disney Co254687106COM8,097$779,350dollars as filed
Verizon Communications Inc92343V104COM17,599$745,125dollars as filed
ARISTA NETWORKS INC040413205COM4,356$739,997dollars as filed
ISHARES TR464287606S&P MC 400GR ETF6,265$736,137dollars as filed
Texas Instruments Incorporated882508104COM2,128$634,293dollars as filed
SOLVENTUM CORP COM SHS83444M101Stock8,214$633,710dollars as filed
General Electric Company369604301COM1,548$578,534dollars as filed
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS1,174$560,667dollars as filed
LEGG MASON ETF INVT524682200CMN6,389$547,281dollars as filed
INVESCO QQQ TR46090E103COM706$519,898dollars as filed
HONEYWELL AEROSPACE INC COM43849R105Stock2,247$496,767dollars as filed
HONEYWELL INTL INC COM438516205Stock1,976$442,426dollars as filed
iShares Core S&P Small-Cap ETF464287804SHS2,840$421,200dollars as filed
DBX ETF TR233051143XTRACKRS S&P 5005,852$402,969dollars as filed
PALO ALTO NETWORKS INC697435105COM1,015$346,135dollars as filed
DIMENSIONAL ETF TRUST25434V609US TARGETED VLU4,908$343,069dollars as filed
NUSHARES ETF TR67092P805NUVEEN ESG INTL8,456$338,409dollars as filed
DIMENSIONAL ETF TRUST25434V401US EQUI MARK ETF4,054$332,185dollars as filed
Danaher Corporation235851102COM1,640$312,387dollars as filed
CADENCE DESIGN SYSTEM INC COM127387108Stock795$298,379dollars as filed
ISHARES MSCI USA QUALITY FACTOR ETF46432F339ETF1,300$285,259dollars as filed
MARVELL TECHNOLOGY INC573874104COM950$282,995dollars as filed
Vanguard Growth922908736COM3,282$282,711dollars as filed
SPOTIFYTECHNOLOGYSAFL8681T102STOK606$278,233dollars as filed
Progressive Corporation743315103COM1,265$276,339dollars as filed
Vanguard Mid-Cap ETF922908629SHS3,320$267,492dollars as filed
Vanguard Ultra-Short Bond ETF92203C303SHS5,069$252,335dollars as filed
WEST PHARMACEUTICAL SVSC INC COM955306105Stock701$251,659dollars as filed
Uber Technologies90353T100COM3,445$248,591dollars as filed
Intuitive Surgical,Inc.46120E602COM624$248,152dollars as filed
GALLAGHER ARTHUR J & CO COM363576109Stock1,079$247,706dollars as filed
DIMENSIONAL ETF TRUST25434V724US MKTWIDE VALUE4,331$238,248dollars as filed
CINTAS CORP COM172908105Stock1,400$238,112dollars as filed
DATADOGINCCLASSA23804L103STOK898$233,803dollars as filed
REPUBLIC SVCS INC COM760759100Stock1,061$226,078dollars as filed
MONOLITHIC PWR SYS INC COM609839105Stock160$221,178dollars as filed
Vanguard FTSE Developed Markets ETF921943858SHS3,065$218,381dollars as filed
Charles Schwab Corp808513105COM2,360$217,757dollars as filed
SPDR S&P Midcap 400 ETF Trust78467Y107SHS300$211,002dollars as filed
VAIL RESORTS INC COM91879Q109Stock1,500$204,225dollars as filed
FEDEX FGHT HLDG CO INC COMMON STOCK314352105Stock1,340$202,340dollars as filed
FUTUREONE INC36114m108CS100,000$0dollars as filedValue filed as zero, left out of ratios.

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001486083-26-000003this filing2026-08-07acceptance time not in the bulk data set