HolderBook

Corundum Group, Inc.

Reported holdings as of Q2 2026, from 31 quarterly filings.

CIK
1486083
Reported value
$337.1M
Positions
112
Top 10 weight
54.0%
Filed
2026-08-07
Days after quarter end
38

Holdings

SecurityTickerValue SharesWeightWeight change Held Change
ISHARES TRIWF$42.4M341,71612.59%+0.41pp31q+300.0%+$31.8M
ISHARES TRIWD$40.5M167,20712.02%+0.19pp17q+0.9%+$358.1K
ISHARES TREFA$17.1M164,9695.08%-0.19pp31q+1.5%+$260.5K
3M COMMM$16.1M99,3834.77%-0.04pp31qHELD
ISHARES TRIWO$13.7M34,7224.06%+0.35pp31q-1.7%-$233.2K
ISHARES TRIWN$11.7M53,0733.48%+0.09pp31q-0.8%-$96.2K
ISHARES TRIWP$11.2M76,3173.31%+0.08pp17q+1.1%+$120.2K
ISHARES TRIWS$10.2M61,8013.02%-0.33pp17q-10.2%-$1.2M
LOCKHEED MARTIN CORPLMT$9.7M19,0452.88%-0.97pp3qHELD
STATE STR SPDR S&P 500 ETF TSPY$9.4M12,5372.78%+0.08pp31q+1.2%+$112.0K
ISHARES TRSUSA$7.4M47,9362.19%-0.02pp19q-4.4%-$341.5K
LINDE PLCLIN$7.2M13,9132.14%-0.49pp3q-12.3%-$1.0M
APPLE INCAAPL$7.1M24,4512.10%+0.10pp31q+4.0%+$272.3K
VANGUARD SCOTTSDALE FDSVONV$5.1M47,8261.51%+0.03pp30q+1.4%+$70.7K
MICROSOFT CORPMSFT$4.7M12,5101.38%-0.16pp31qHELD
ISHARES TRIWB$4.5M10,9811.33%+0.06pp31q+2.4%+$105.7K
ISHARES TRIWM$4.2M14,0061.25%+0.12pp31q+2.8%+$113.0K
INTEL CORPINTC$4.2M29,8531.24%+0.80pp6qHELD
CATERPILLAR INCCAT$3.6M3,3371.05%+0.26pp27q-0.7%-$23.4K
INVESCO EXCH TRADED FD TR IISPLV$3.5M47,3221.05%-0.08pp31q+2.1%+$73.1K
NVIDIA CORPORATIONNVDA$3.5M17,4761.04%+0.05pp21q+3.0%+$103.0K
ALPHABET INCGOOGL$3.5M9,7631.03%+0.11pp24q+1.0%+$35.0K
SPDR GOLD TRGLD$3.5M9,4011.03%-0.32pp21qHELD
ALPHABET INCGOOG$3.4M9,5101.00%+0.14pp31q+6.0%+$189.7K
SPDR SERIES TRUSTSPYM$3.3M37,2040.97%+0.11pp7q+10.9%+$322.1K
JPMORGAN CHASE & COJPM$3.2M9,8350.95%flat31q+0.9%+$28.5K
VANGUARD INDEX FDSVOO$2.9M4,1520.85%+0.06pp24q+5.3%+$142.9K
ISHARES TRIVW$2.8M20,4350.83%+0.06pp31qHELD
EXXONMOBIL HOLDINGS CORP COM SHSXOM$2.6M18,8210.76%-newNEW
BROADCOM INCAVGO$2.6M6,7860.76%+0.05pp16qHELD
SELECT SECTOR SPDR TRXLU$2.4M53,3750.72%-0.08pp11q+2.7%+$64.7K
CISCO SYS INCCSCO$2.4M20,2360.71%+0.18pp25qHELD
FIRST TR EXCHANGE TRAD FD VIFTGC$2.3M84,1820.68%-0.12pp20q+1.2%+$26.5K
NUSHARES ETF TRNUSC$2.3M43,3170.67%-0.01pp19q-4.5%-$105.9K
ISHARES TRIJH$2.1M27,0550.62%-0.01pp31q-2.2%-$46.3K
AMAZON COM INCAMZN$2.0M8,6010.61%+0.02pp31q+1.8%+$36.0K
VISA INCV$2.0M5,9500.61%+0.01pp25q+0.7%+$15.1K
ELI LILLY & COLLY$2.0M1,6810.60%+0.08pp31q+0.6%+$12.0K
ABBVIE INCABBV$2.0M8,0000.60%+0.01pp25q-0.7%-$13.8K
JOHNSON & JOHNSONJNJ$2.0M7,7550.58%-0.05pp31qHELD
GOLDMAN SACHS GROUP INCGS$1.9M1,8970.57%+0.04pp23q+0.5%+$10.1K
US BANCORPUSB$1.7M28,0130.50%+0.02pp21q+0.7%+$11.9K
ECOLAB INCECL$1.6M5,6460.47%-0.04pp31qHELD
BRISTOL-MYERS SQUIBB COBMY$1.5M25,8130.44%-0.08pp30qHELD
HOME DEPOT INCHD$1.4M4,1020.43%-0.02pp31q+1.2%+$17.3K
BANK OF AMER CORPBAC$1.4M24,8970.42%+0.02pp23q+1.1%+$14.8K
COSTCO WHOLESALE CORPORATIONCOST$1.4M1,5070.42%-0.07pp19q+1.9%+$26.2K
MERCK & CO INCMRK$1.4M10,7030.41%-0.01pp24q+2.0%+$26.3K
DUKE ENERGY CORP NEWDUK$1.3M10,6210.40%-0.07pp7q-1.4%-$18.5K
WASTE MGMT INC DELWM$1.3M6,0160.40%-0.06pp23q+1.1%+$14.7K
WALMART INCWMT$1.3M11,8350.40%-0.08pp31q+2.4%+$31.8K
AMGEN INCAMGN$1.3M3,6780.40%-0.03pp24q+1.1%+$14.8K
ISHARES TRIVE$1.3M5,7900.39%-0.03pp16q-3.0%-$40.9K
BERKSHIRE HATHAWAY INC DELBRKB$1.3M2,5890.38%-0.02pp31q+1.4%+$18.5K
MASTERCARD INCORPORATEDMA$1.3M2,5080.38%-0.03pp27q+1.1%+$14.4K
ORACLE CORPORCL$1.2M8,3010.36%-0.04pp24q+2.2%+$26.7K
MICRON TECHNOLOGY INCMU$1.2M1,0380.36%+0.24pp5q-1.0%-$11.5K
COCA COLA COKO$1.0M12,4850.30%flat31q+3.7%+$36.5K
BOEING COBA$997.9K4,6100.30%-newNEW
META PLATFORMS INCMETA$982.9K1,7450.29%-newNEW
AUTOMATIC DATA PROCESSING INADP$973.5K4,3470.29%flat24q+1.3%+$12.8K
CHEVRON CORPORATIONCVX$973.5K5,8730.29%-0.10pp31q+3.5%+$33.2K
MCDONALDS CORPMCD$921.2K3,4080.27%-0.07pp31q+2.2%+$19.5K
ABBOTT LABORATORIESABT$889.4K9,8020.26%-0.08pp31q-1.2%-$11.1K
PROCTER & GAMBLE COPG$873.1K5,9540.26%-0.02pp31q+3.2%+$27.1K
FEDEX CORPFDX$871.1K2,7820.26%-0.06pp25q+3.5%+$29.4K
MEDTRONIC PLCMDT$836.6K10,6940.25%-0.05pp10q+3.7%+$29.8K
PFIZER INCPFE$825.1K34,2640.24%-0.06pp31q+4.5%+$35.4K
UNITED PARCEL SVCS INCUPS$816.2K7,5930.24%flat2q+3.3%+$26.4K
XCEL ENERGY INCXEL$795.9K9,9110.24%-0.02pp23q+3.4%+$26.2K
DISNEY WALT CODIS$779.4K8,0970.23%-0.02pp31q+4.6%+$34.2K
VERIZON COMMUNICATIONS INCVZ$745.1K17,5990.22%-0.06pp2q+4.6%+$32.9K
ARISTA NETWORKS INCANET$740.0K4,3560.22%+0.10pp7q+49.4%+$244.8K
ISHARES TRIJK$736.1K6,2650.22%-0.02pp31q-10.5%-$86.4K
TEXAS INSTRS INCTXN$634.3K2,1280.19%+0.05pp31q-2.3%-$14.9K
SOLVENTUM CORPSOLV$633.7K8,2140.19%+0.01pp9qHELD
GE AEROSPACEGE$578.5K1,5480.17%+0.03pp6q+0.6%+$3.4K
TAIWAN SEMICONDUCTOR MANUFACTSM$560.7K1,1740.17%+0.02pp4q-9.0%-$55.4K
LEGG MASON ETF INVTLRGE$547.3K6,3890.16%flat18qHELD
INVESCO QQQ TRQQQ$519.9K7060.15%+0.02pp14qHELD
HONEYWELL AEROSPACE INCHONA$496.8K2,2470.15%-newNEW
HONEYWELL INTL INCHON$442.4K1,9760.13%-newNEW
ISHARES TRIJR$421.2K2,8400.12%-0.18pp31q-61.3%-$666.5K
DBX ETF TRSNPE$403.0K5,8520.12%flat3q+0.9%+$3.6K
PALO ALTO NETWORKS INCPANW$346.1K1,0150.10%+0.03pp2q-25.7%-$119.7K
DIMENSIONAL ETF TRUSTDFAT$343.1K4,9080.10%-0.03pp2q-19.3%-$82.0K
NUSHARES ETF TRNUDM$338.4K8,4560.10%flat10q+0.7%+$2.4K
DIMENSIONAL ETF TRUSTDFUS$332.2K4,0540.10%flat2qHELD
DANAHER CORP DELDHR$312.4K1,6400.09%-0.01pp3q+4.3%+$12.8K
CADENCE DESIGN SYSTEM INCCDNS$298.4K7950.09%+0.01pp8q-1.7%-$5.3K
ISHARES TRQUAL$285.3K1,3000.08%flat10qHELD
MARVELL TECHNOLOGY INCMRVL$283.0K9500.08%+0.01pp2q-56.7%-$370.6K
VANGUARD INDEX FDSVUG$282.7K3,2820.08%flat9q+500.0%+$235.6K
SPOTIFY TECHNOLOGY S ASPOT$278.2K6060.08%flat2q+24.4%+$54.6K
PROGRESSIVE CORPPGR$276.3K1,2650.08%flat10q-0.8%-$2.2K
VANGUARD INDEX FDSVO$267.5K3,3200.08%flat11q+300.0%+$200.6K
VANGUARD BD INDEX FDSVUSB$252.3K5,0690.07%-0.01pp6qHELD
WEST PHARMACEUTICAL SVSC INCWST$251.7K7010.07%-newNEW
UBER TECHNOLOGIES INCUBER$248.6K3,4450.07%flat11q+10.4%+$23.4K
INTUITIVE SURGICAL INCISRG$248.2K6240.07%-0.01pp3q+9.3%+$21.1K
GALLAGHER ARTHUR J & COAJG$247.7K1,0790.07%-0.01pp4q-2.4%-$6.0K
DIMENSIONAL ETF TRUSTDFUV$238.2K4,3310.07%flat2qHELD
CINTAS CORPCTAS$238.1K1,4000.07%-newNEW
DATADOG INCDDOG$233.8K8980.07%-newNEW
REPUBLIC SVCS INCRSG$226.1K1,0610.07%-0.01pp13q-0.8%-$1.9K
MONOLITHIC PWR SYS INCMPWR$221.2K1600.07%-0.02pp5q-32.5%-$106.4K
VANGUARD TAX-MANAGED FDSVEA$218.4K3,0650.06%-newNEW
SCHWAB CHARLES CORPSCHW$217.8K2,3600.06%flat3q+8.5%+$17.1K
STATE STR SPDR S&P MIDCAP 40MDY$211.0K3000.06%-newNEW
VAIL RESORTS INCMTN$204.2K1,5000.06%-newNEW
FEDEX FGHT HLDG CO INC$202.3K1,3400.06%-newNEW
36114M108$0100,0000.00%-newNEW

By sector

Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.

Medical Devices 5.4%Software & IT Services 4.5%Semiconductors & Electronics 4.1%Biotech & Pharma 3.5%Autos & Aerospace 3.2%Computer Hardware 3.1%Funds & ETFs 3.0%Chemicals 2.9%Retail & Consumer 2.2%Banks & Lending 1.9%Capital Markets 1.7%Other sectors 6.3%Not classified 58.3%
 
SectorValueShare
Medical Devices$18.1M5.4%
Software & IT Services$15.2M4.5%
Semiconductors & Electronics$13.7M4.1%
Biotech & Pharma$11.9M3.5%
Autos & Aerospace$10.7M3.2%
Computer Hardware$10.5M3.1%
Funds & ETFs$10.1M3.0%
Chemicals$9.7M2.9%
Retail & Consumer$7.4M2.2%
Banks & Lending$6.3M1.9%
Capital Markets$5.6M1.7%
Other sectors$21.2M6.3%
Not classified$196.7M58.3%

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$337.1M112135625854.0%38
Q1 2026$299.2M107959291454.3%20
Q4 2025$298.0M112164338654.8%12
Q3 2025$243.4M10232841354.0%24
Q2 2025$226.2M10273729254.1%21
Q1 2025$208.5M974968653.1%23
Q4 2024$267.8M9975822746.5%16
Q3 2024$219.2M993773454.2%21
Q2 2024$256.0M10046114147.3%17
Q1 2024$207.3M9772842954.1%15
Q4 2023$199.4M991130361252.9%24
Q3 2023$176.0M10008681453.1%17
Q2 2023$200.5M114161750049.7%21
Q1 2023$211.4M9835323445.8%24
Q4 2022$177.1K99550211149.4%12
Q3 2022$159.0M10511754150.8%18
Q2 2022$148.0M9556710651.1%25
Q1 2022$107.6M96106371535.6%32
Q4 2021$153.6M101126410259.5%38
Q3 2021$134.9M91244241263.2%33
Q2 2021$152.5M101133636165.4%33
Q1 2021$128.0M8925915464.2%40
Q4 2020$120.0M9195611365.1%34
Q3 2020$103.2M8526423166.6%43
Q2 2020$83.4M608632676.8%38
Q1 2020$70.3M58312321676.1%37
Q4 2019$95.2M718443174.0%28
Q3 2019$86.3M64085475.4%32
Q2 2019$87.0M686339774.9%33
Q1 2019$87.4M6981461375.9%38
Q4 2018$108.9M74000063.2%50

Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.

Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.

Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.