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William John Sempolinski Portfolio holdings
AUM
$259M
Turnover
12.5%
1-Year Est. Return
24.85%
This Fund
S&P 500
This Quarter Est. Return
+5.33%
1 Year Est. Return
+24.85%
3 Year Est. Return
–
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$259M
AUM Growth
+$11.2M
(+4.5%)
Cap. Flow
+$3.92M
Cap. Flow % of AUM
Cap. Flow %
1.52%
Top 10 Holdings %
Top 10 Hldgs %
57.51%
Holding
112
New
6
Increased
37
Reduced
40
Closed
8
Avg Time Held
0.6
years
Top 10 Avg Time Held
0.6
years
Top 20 Avg Time Held
0.6
years
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Schwab US Dividend Equity ETF
SCHD
|
+$3.33M |
| 2 |
iShares Short Maturity Bond ETF
NEAR
|
+$3.25M |
| 3 |
iShares Biotechnology ETF
IBB
|
+$1.43M |
| 4 |
T. Rowe Price Ultra Short-Term Bond ETF
TBUX
|
+$1.42M |
| 5 |
iShares 0-3 Month Treasury Bond ETF
SGOV
|
+$1.34M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares US Home Construction ETF
ITB
|
+$2.77M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$1.57M |
| 3 |
State Street DoubleLine Total Return Tactical ETF
TOTL
|
+$1.22M |
| 4 |
QuantumScape Corp
QS
|
+$1.09M |
| 5 |
NVIDIA
NVDA
|
+$1.06M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 42.11% |
| 2 | Technology | 36.95% |
| 3 | Communication Services | 5.34% |
| 4 | Financials | 3.82% |
| 5 | Industrials | 3.04% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
26
Rocket Lab Corp
RKLB
$41.4B
| $2.3M | 0.89% |
33,075
+7,275
| +28% | +$524K |
2025 Q4
3 quarters
|
|
27
iShares MSCI EAFE ETF
EFA
$77.3B
| $2.22M | 0.86% |
21,370
+400
| +2% | +$42.4K |
2025 Q4
3 quarters
|
|
28
Sherwin-Williams
SHW
$84.5B
| $2.21M | 0.85% |
6,833
-300
| -4% | -$101K |
2025 Q4
3 quarters
|
|
29
Capital Group Core Balanced ETF
CGBL
$7.98B
| $2.05M | 0.79% |
55,655
+925
| +2% | +$34.9K |
2025 Q4
3 quarters
|
|
30
Berkshire Hathaway Class B
BRK.B
$1.26T
| $1.9M | 0.73% |
3,810
+300
| +9% | +$151K |
2025 Q4
3 quarters
|
|
31
GRAIL Inc
GRAL
$5.21B
| $1.9M | 0.73% |
13,525
+6,375
| +89% | +$506K |
2026 Q2
1 quarter
|
|
|
32
iShares Biotechnology ETF
IBB
$11.1B
| $1.79M | 0.69% |
8,503
+7,135
| +522% | +$1.43M |
2025 Q4
3 quarters
|
|
33
Realty Income
O
$55.9B
| $1.7M | 0.66% |
31,250
| – | – |
2025 Q4
3 quarters
|
|
34
SpaceX
SPCX
$1.89T
| $1.64M | 0.64% |
10,902
+6,832
| +168% | +$946K |
2026 Q2
1 quarter
|
|
35
iShares Core S&P Small-Cap ETF
IJR
$106B
| $1.6M | 0.62% |
11,773
-60
| -0.5% | -$8.68K |
2025 Q4
3 quarters
|
|
36
Alphabet (Google) Class C
GOOG
$3.6T
| $1.56M | 0.6% |
4,584
| – | – |
2025 Q4
3 quarters
|
|
37
TSMC
TSM
$2.07T
| $1.48M | 0.57% |
3,235
-125
| -4% | -$53K |
2025 Q4
3 quarters
|
|
38
RTX Corp
RTX
$268B
| $1.41M | 0.54% |
7,590
-200
| -3% | -$40.9K |
2025 Q4
3 quarters
|
|
39
Visa
V
$794B
| $1.37M | 0.53% |
3,800
+200
| +6% | +$73.1K |
2025 Q4
3 quarters
|
|
40
Caterpillar
CAT
$275B
| $1.33M | 0.51% |
1,636
-194
| -11% | -$165K |
2025 Q4
3 quarters
|
|
41
iShares Russell 2000 ETF
IWM
$77.1B
| $1.3M | 0.5% |
4,688
+20
| +0.4% | +$5.87K |
2025 Q4
3 quarters
|
|
42
SPDR Gold Trust
GLD
$130B
| $1.26M | 0.49% |
3,303
+2,478
| +300% | +$969K |
2026 Q2
1 quarter
|
|
43
Walmart Inc
WMT
$1.02T
| $1.16M | 0.45% |
11,192
+1,601
| +17% | +$176K |
2025 Q4
3 quarters
|
|
44
iShares Core MSCI EAFE ETF
IEFA
$191B
| $1.13M | 0.44% |
11,655
+2,995
| +35% | +$296K |
2025 Q4
3 quarters
|
|
45
National Grid
NGG
$84.7B
| $1.04M | 0.4% |
13,683
-49
| -0.4% | -$3.91K |
2025 Q4
3 quarters
|
|
46
Independent Bank
INDB
$3.91B
| $1M | 0.39% |
12,939
-1,750
| -12% | -$146K |
2025 Q4
3 quarters
|
|
47
Johnson & Johnson
JNJ
$688B
| $935K | 0.36% |
3,531
+1,400
| +66% | +$369K |
2025 Q4
3 quarters
|
|
48
IBM
IBM
$234B
| $935K | 0.36% |
4,250
-600
| -12% | -$142K |
2025 Q4
3 quarters
|
|
49
ASML
ASML
$576B
| $906K | 0.35% |
500
-210
| -30% | -$364K |
2025 Q4
3 quarters
|
|
50
Vanguard Dividend Appreciation ETF
VIG
$118B
| $884K | 0.34% |
3,788
| – | – |
2025 Q4
3 quarters
|
|
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William John Sempolinski's Q3 2026 Portfolio in Review
As of Q3 2026, William John Sempolinski held 112 positions worth $259M, up 4.5% from $248M the previous quarter. Its ten largest holdings account for 58% of the portfolio.
William John Sempolinski's Q3 2026 filing shows 6 new, 37 increased, 40 reduced and 8 closed positions. Its largest new stake was iShares Short Maturity Bond ETF: 64,455 shares worth $3.21M. The largest sale was iShares US Home Construction ETF, an estimated $2.77M.
By sector, the portfolio is most concentrated in Miscellaneous at 42% of assets, down from 42% a quarter earlier, followed by Technology and Communication Services.
- William John Sempolinski's largest Q3 2026 buy was iShares Short Maturity Bond ETF: 64,455 shares worth $3.21M.
- William John Sempolinski added most to Schwab US Dividend Equity ETF in Q3 2026, an estimated $3.33M increase.
- William John Sempolinski's biggest Q3 2026 reduction was iShares 20+ Year Treasury Bond ETF, cutting an estimated $1.57M.
- William John Sempolinski fully exited iShares US Home Construction ETF in Q3 2026, selling an estimated $2.77M.
- William John Sempolinski's ten largest holdings make up 58% of its $259M portfolio in Q3 2026.
- William John Sempolinski opened 6 new positions and closed 8 in Q3 2026.
- William John Sempolinski's portfolio value rose 4.5% quarter-over-quarter to $259M.
Based on William John Sempolinski's 13F filing for Q3 2026, filed 20 Oct 2026.