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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 | |
|---|---|---|---|---|---|---|---|
101
Invesco QQQ Trust
QQQ
$461B
| $207K | 0.08% |
280
| – | – |
2026 Q2
1 quarter
|
|
102
Southern Company
SO
$109B
| $206K | 0.08% |
2,488
| – | – |
2025 Q4
3 quarters
|
|
|
103
QuantumScape Corp
QS
$2.28B
| $51.1K | 0.02% |
11,000
-190,990
| -95% | -$1.09M |
2025 Q4
3 quarters
|
|
104
SEALSQ Corp
LAES
$281M
| $42.1K | 0.02% |
18,000
-21,700
| -55% | -$54.8K |
2026 Q2
1 quarter
|
|
105
Carrier Global
CARR
$44.3B
| – | – |
-3,057
| Closed | -$224K | – |
|
106
Enbridge
ENB
$106B
| – | – |
-7,500
| Closed | -$407K | – |
|
107
General Dynamics
GD
$98.2B
| – | – |
-600
| Closed | -$213K | – |
|
108
Intel
INTC
$317B
| – | – |
-4,850
| Closed | -$677K | – |
|
109
Iron Mountain
IRM
$33.9B
| – | – |
-1,900
| Closed | -$240K | – |
|
|
110
iShares US Home Construction ETF
ITB
$2.21B
| – | – |
-26,497
| Closed | -$2.77M | – |
|
111
iShares MSCI USA Momentum Factor ETF
MTUM
$16.9B
| – | – |
-3,516
| Closed | -$301K | – |
|
112
CoreWeave
CRWV
$29.5B
| – | – |
-2,550
| Closed | -$254K | – |
|
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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.