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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 | |
|---|---|---|---|---|---|---|---|
76
Lam Research
LRCX
$283B
| $388K | 0.15% |
1,180
-300
| -20% | -$93.7K |
2026 Q2
1 quarter
|
|
77
Vanguard S&P 500 ETF
VOO
$1.04T
| $370K | 0.14% |
528
+25
| +5% | +$17.5K |
2025 Q4
3 quarters
|
|
78
JPMorgan Chase
JPM
$919B
| $369K | 0.14% |
1,116
| – | – |
2025 Q4
3 quarters
|
|
|
79
State Street DoubleLine Total Return Tactical ETF
TOTL
$3.7B
| $356K | 0.14% |
9,526
-31,450
| -77% | -$1.22M |
2026 Q1
2 quarters
|
|
80
Invesco S&P 500 Equal Weight ETF
RSP
$103B
| $354K | 0.14% |
1,704
| – | – |
2025 Q4
3 quarters
|
|
81
Twist Bioscience
TWST
$7.4B
| $348K | 0.13% |
+1,800
| New | +$222K |
2026 Q3
0 quarters
|
|
82
10x Genomics
TXG
$7.65B
| $334K | 0.13% |
+3,700
| New | +$216K |
2026 Q3
0 quarters
|
|
83
Prudential Financial
PRU
$42.4B
| $324K | 0.13% |
2,850
-450
| -14% | -$53.7K |
2025 Q4
3 quarters
|
|
84
Citigroup
C
$205B
| $324K | 0.13% |
2,500
| – | – |
2025 Q4
3 quarters
|
|
85
Costco
COST
$490B
| $319K | 0.12% |
350
| – | – |
2025 Q4
3 quarters
|
|
86
Home Depot
HD
$348B
| $313K | 0.12% |
1,100
+200
| +22% | +$65.7K |
2025 Q4
3 quarters
|
|
87
Vanguard Short-Term Bond ETF
BSV
$46.5B
| $306K | 0.12% |
4,000
| – | – |
2025 Q4
3 quarters
|
|
88
PIMCO Multi Sector Bond Active ETF
PYLD
$16.6B
| $302K | 0.12% |
11,900
-13,600
| -53% | -$355K |
2025 Q4
3 quarters
|
|
89
MPLX
MPLX
$58B
| $299K | 0.12% |
5,301
| – | – |
2025 Q4
3 quarters
|
|
90
Delta Air Lines
DAL
$56.7B
| $292K | 0.11% |
3,500
| – | – |
2025 Q4
3 quarters
|
|
91
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.6B
| $290K | 0.11% |
+3,700
| New | +$299K |
2026 Q3
0 quarters
|
|
92
Advanced Micro Devices
AMD
$876B
| $287K | 0.11% |
+469
| New | +$241K |
2026 Q3
0 quarters
|
|
93
Rio Tinto
RIO
$135B
| $273K | 0.11% |
2,901
| – | – |
2025 Q4
3 quarters
|
|
94
Lockheed Martin
LMT
$138B
| $255K | 0.1% |
500
-103
| -17% | -$56.6K |
2026 Q1
2 quarters
|
|
95
Eaton Vance Ultra-Short Income ETF
EVSB
$375M
| $253K | 0.1% |
5,000
| – | – |
2025 Q4
3 quarters
|
|
96
UnitedHealth
UNH
$365B
| $239K | 0.09% |
650
| – | – |
2026 Q2
1 quarter
|
|
97
Palo Alto Networks
PANW
$264B
| $238K | 0.09% |
600
| – | – |
2026 Q2
1 quarter
|
|
98
Duke Energy
DUK
$101B
| $230K | 0.09% |
2,020
| – | – |
2025 Q4
3 quarters
|
|
99
Tesla
TSLA
$1.54T
| $220K | 0.09% |
620
| – | – |
2026 Q2
1 quarter
|
|
100
Corning
GLW
$98.3B
| $217K | 0.08% |
1,410
-3,100
| -69% | -$493K |
2026 Q1
2 quarters
|
|
Similar funds
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.