2026 Q3 Portfolio Activity
In 2026 Q3, Flagstone Financial Management maintained a portfolio of 78 distinct positions. The most significant new addition was SHOPIFY INC, now representing 0.05% of the total fund value. They heavily accumulated shares in ISHARES TR, increasing the position by 51.3%.
Position History
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Total Positions
78
Quarter
2026 Q3
Top Holding
DFUS (28.9%)
Top 10 Concentration
80.8%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 78
Flagstone Financial Management Full Holdings List — 2026 Q3
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
DFUS
DIMENSIONAL ETF...
|
ETF | 28.94% | 28.50% |
#1
Prev: #1
|
6.5 |
—
|
31,240 | 2.0% |
P
S
|
1,586,605 | $131,735,801 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
IGIB
ISHARES TR
|
ETF | 9.92% | 10.03% |
#2
Prev: #2
|
7.5 |
—
|
53,467 | 6.3% |
P
S
|
896,965 | $45,162,181 | 2024 Q1 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
SPDW
SPDR INDEX SHS ...
|
ETF | 7.42% | 7.47% |
#3
Prev: #3
|
4.5 |
—
|
10,028 | 1.5% |
P
S
|
672,944 | $33,788,546 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
SPSB
SPDR SERIES TRU...
|
ETF | 6.53% | 6.31% |
#4
Prev: #4
|
5.1 |
—
|
63,949 | 6.8% |
P
S
|
1,004,664 | $29,728,007 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
SPTI
SPDR SERIES TRU...
|
Bond/Debt | 5.76% | 5.75% |
#5
Prev: #5
|
4.8 |
—
|
54,881 | 6.1% |
P
S
|
960,342 | $26,198,127 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
BNDX
VANGUARD CHARLO...
|
Bond/Debt | 5.42% | 5.38% |
#6
1
Prev: #7
|
4.2 |
—
|
29,559 | 6.0% |
P
S
|
525,917 | $24,649,747 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVUV
AMERICAN CENTY ...
|
ETF | 5.13% | 5.45% |
#7
1
Prev: #6
|
2.6 |
—
|
2,858 | 1.5% |
P
S
|
198,190 | $23,340,837 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFEM
DIMENSIONAL ETF...
|
ETF | 4.26% | 4.34% |
#8
Prev: #8
|
2.2 |
—
|
11,042 | 2.3% |
P
S
|
488,431 | $19,400,469 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVUS
AMERICAN CENTY ...
|
ETF | 3.76% | 3.79% |
#9
Prev: #9
|
2.0 |
—
|
1,238 | 0.9% |
P
S
|
133,452 | $17,093,862 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVDV
AMERICAN CENTY ...
|
Bond/Debt | 3.62% | 3.42% |
#10
Prev: #10
|
1.9 |
—
|
2,459 | 1.7% |
P
S
|
150,756 | $16,489,658 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
VNQ
VANGUARD INDEX ...
|
ETF | 2.51% | 2.61% |
#11
Prev: #11
|
3.0 |
—
|
6,375 | 5.3% |
P
S
|
127,245 | $11,404,961 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
MUNI
PIMCO ETF TR
|
Bond/Debt | 1.88% | 2.21% |
#12
Prev: #12
|
1.3 |
—
|
-15,550 | -8.3% |
P
S
|
172,221 | $8,557,644 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVEM
AMERICAN CENTY ...
|
Bond/Debt | 1.78% | 1.90% |
#13
Prev: #13
|
1.2 |
—
|
-1,658 | -1.9% |
P
S
|
86,355 | $8,119,069 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
BRK/B
BERKSHIRE HATHA...
|
Financial Services | 1.32% | 1.35% |
#14
Prev: #14
|
1.0 |
—
|
-42 | -0.3% |
P
S
|
12,054 | $6,002,300 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
MUB
ISHARES TR
|
ETF | 1.05% | 0.75% |
#15
1
Prev: #16
|
3.4 |
—
|
16,009 | 51.3% |
P
S
|
47,206 | $4,772,538 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVDE
AMERICAN CENTY ...
|
Bond/Debt | 1.02% | 1.01% |
#16
1
Prev: #15
|
0.9 |
—
|
564 | 1.1% |
P
S
|
51,380 | $4,629,887 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AAPL
APPLE INC
|
Technology | 0.83% | 0.74% |
#17
Prev: #17
|
0.8 |
—
|
-183 | -1.6% |
P
S
|
11,302 | $3,763,729 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFSU
DIMENSIONAL ETF...
|
ETF | 0.58% | 0.58% |
#18
Prev: #18
|
0.7 |
—
|
490 | 0.9% |
P
S
|
56,176 | $2,649,841 | 2024 Q1 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
MSFT
MICROSOFT CORP
|
Technology | 0.56% | 0.43% |
#19
3
Prev: #22
|
0.7 |
—
|
-162 | -3.2% |
P
S
|
4,938 | $2,532,961 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
SPTM
SPDR SERIES TRU...
|
ETF | 0.49% | 0.51% |
#20
1
Prev: #19
|
0.7 |
—
|
-877 | -3.5% |
P
S
|
24,146 | $2,222,640 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
SUSB
ISHARES TR
|
ETF | 0.49% | 0.50% |
#21
1
Prev: #20
|
0.7 |
—
|
820 | 0.9% |
P
S
|
90,765 | $2,217,388 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 0.48% | 0.49% |
#22
1
Prev: #21
|
0.7 |
—
|
-94 | -1.4% |
P
S
|
6,600 | $2,183,341 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AVRE
AMERICAN CENTY ...
|
ETF | 0.30% | 0.31% |
#23
2
Prev: #25
|
2.1 |
—
|
1,756 | 6.1% |
P
S
|
30,762 | $1,364,300 | 2023 Q2 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
USB
US BANCORP
|
Financial Services | 0.30% | 0.32% |
#24
1
Prev: #23
|
0.6 |
—
|
-308 | -1.3% |
P
S
|
23,385 | $1,350,715 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFSV
DFA INVT DIMENS...
|
Unknown | 0.29% | 0.31% |
#25
1
Prev: #24
|
1.1 |
—
|
no change | no change |
P
S
|
35,430 | $1,327,562 | 2024 Q3 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFAE
DIMENSIONAL ETF...
|
ETF | 0.27% | 0.28% |
#26
Prev: #26
|
0.6 |
—
|
-28 | -0.1% |
P
S
|
31,398 | $1,234,245 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 0.25% | 0.23% |
#27
Prev: #27
|
1.1 |
—
|
no change | no change |
P
S
|
5,043 | $1,151,712 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
XOM
EXXONMOBIL HOLD...
|
Energy | 0.23% | 0.20% |
#28
2
Prev: #30
|
0.6 |
—
|
-51 | -0.8% |
P
S
|
6,480 | $1,054,549 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
GOOG
ALPHABET INC
|
Communication Services | 0.20% | 0.22% |
#29
1
Prev: #28
|
0.6 |
—
|
-41 | -1.5% |
P
S
|
2,711 | $923,626 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFSI
DIMENSIONAL ETF...
|
Bond/Debt | 0.20% | 0.20% |
#30
2
Prev: #32
|
0.6 |
—
|
217 | 1.1% |
P
S
|
19,873 | $897,669 | 2024 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFSB
DIMENSIONAL ETF...
|
ETF | 0.19% | 0.20% |
#31
2
Prev: #29
|
0.6 |
—
|
372 | 2.2% |
P
S
|
17,664 | $875,227 | 2024 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
WFC
WELLS FARGO & C...
|
Financial Services | 0.19% | 0.20% |
#32
1
Prev: #31
|
0.6 |
—
|
-142 | -1.3% |
P
S
|
10,604 | $848,879 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
IWR
ISHARES TR
|
ETF | 0.18% | 0.19% |
#33
Prev: #33
|
1.1 |
—
|
no change | no change |
P
S
|
7,823 | $834,793 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
VTI
VANGUARD INDEX ...
|
ETF | 0.17% | 0.17% |
#34
Prev: #34
|
0.6 |
—
|
21 | 1.0% |
P
S
|
2,089 | $781,599 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
BRK/A
BERKSHIRE HATHA...
|
Financial Services | 0.16% | 0.17% |
#35
1
Prev: #36
|
1.1 |
—
|
no change | no change |
P
S
|
1 | $747,005 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
VIG
VANGUARD SPECIA...
|
ETF | 0.16% | 0.17% |
#36
1
Prev: #35
|
1.1 |
—
|
no change | no change |
P
S
|
3,190 | $744,205 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DE
DEERE & CO
|
Industrials | 0.15% | 0.15% |
#37
Prev: #37
|
1.1 |
—
|
no change | no change |
P
S
|
1,032 | $693,147 | 2024 Q3 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 0.14% | 0.14% |
#38
1
Prev: #39
|
1.1 |
—
|
no change | no change |
P
S
|
2,558 | $637,326 | 2024 Q2 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
MA
MASTERCARD INCO...
|
Financial Services | 0.14% | 0.13% |
#39
1
Prev: #40
|
1.1 |
—
|
no change | no change |
P
S
|
1,140 | $628,690 | 2024 Q3 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
VGIT
VANGUARD SCOTTS...
|
Bond/Debt | 0.13% | 0.14% |
#40
2
Prev: #38
|
0.6 |
—
|
205 | 1.9% |
P
S
|
10,817 | $612,891 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFSE
DIMENSIONAL ETF...
|
ETF | 0.12% | 0.13% |
#41
Prev: #41
|
0.5 |
—
|
22 | 0.2% |
P
S
|
11,567 | $559,250 | 2025 Q1 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
JNJ
JOHNSON & JOHNS...
|
Healthcare | 0.11% | 0.11% |
#42
2
Prev: #44
|
1.0 |
—
|
no change | no change |
P
S
|
1,906 | $504,582 | 2025 Q3 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
IWM
ISHARES TR
|
ETF | 0.11% | 0.12% |
#43
Prev: #43
|
1.0 |
—
|
no change | no change |
P
S
|
1,758 | $488,531 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
MKL
MARKEL GROUP IN...
|
Financial Services | 0.11% | 0.12% |
#44
2
Prev: #42
|
1.0 |
—
|
no change | no change |
P
S
|
282 | $482,911 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
ORCL
ORACLE CORP
|
Technology | 0.10% | 0.11% |
#45
Prev: #45
|
0.5 |
—
|
1 | 0.0% |
P
S
|
3,279 | $450,271 | 2025 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFAR
DFA INVT DIMENS...
|
Unknown | 0.10% | 0.11% |
#46
Prev: #46
|
1.0 |
—
|
no change | no change |
P
S
|
18,004 | $434,964 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
PEP
PEPSICO INC
|
Consumer Defensive | 0.09% | 0.10% |
#47
Prev: #47
|
0.5 |
—
|
-103 | -3.0% |
P
S
|
3,297 | $417,810 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
QQQ
INVESCO QQQ TR
|
ETF | 0.09% | 0.09% |
#48
1
Prev: #49
|
1.0 |
—
|
no change | no change |
P
S
|
524 | $387,641 | 2025 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
DFIV
DIMENSIONAL ETF...
|
Bond/Debt | 0.09% | 0.08% |
#49
2
Prev: #51
|
1.0 |
—
|
no change | no change |
P
S
|
6,939 | $387,613 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-11-05 | |||
|
VLO
VALERO ENERGY C...
|
Energy | 0.09% | 0.06% |
#50
17
Prev: #67
|
1.0 |
—
|
no change | no change |
P
S
|
1,000 | $387,610 | 2026 Q1 | 13F Filing | 2026-09-30 | 2026-11-05 |
Showing 1-50 of 78 holdings