William Harnisch Peconic Partners
William Harnisch is the founder of Peconic Partners, a concentrated investment firm known for high-conviction equity positions. The firm’s portfolio often differs sharply from broad market benchmarks, reflecting a willingness to concentrate capital. Harnisch’s disclosures are tracked by investors interested in bold, research-driven concentration.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares MSCI Emerging Markets ETF
EEM
|
+$25.9M |
| 2 |
IBM
IBM
|
+$7.84M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Carnival Corporation Ltd
CCL
|
+$81.3M |
| 2 |
Micron Technology
MU
|
+$77.7M |
| 3 |
MasTec
MTZ
|
+$51.5M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$36.7M |
| 5 |
Dominion Energy
D
|
+$29.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Industrials | 98.42% |
| 2 | Technology | 0.37% |
| 3 | Consumer Discretionary | 0.03% |
| 4 | Utilities | 0.02% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1
Quanta Services
PWR
$96.1B
| $1.64B | 68.59% |
5,498,565
-100,000
| -2% | -$26.4M |
|
2
Dycom Industries
DY
$11.8B
| $713M | 29.84% |
3,618,492
-9,163
| -0.3% | -$1.65M |
|
|
3
iShares MSCI Emerging Markets ETF
EEM
$30.7B
| $27.5M | 1.15% |
+600,000
| New | +$25.9M |
|
|
4
IBM
IBM
$222B
| $8.84M | 0.37% |
+40,000
| New | +$7.84M |
|
5
Amazon
AMZN
$2.79T
| $742K | 0.03% |
3,980
| – | – |
|
6
NextEra Energy
NEE
$174B
| $548K | 0.02% |
6,485
| – | – |
|
|
7
Carnival Corporation Ltd
CCL
$35.2B
| – | – |
-4,342,000
| Closed | -$81.3M |
|
|
8
Dominion Energy
D
$58.6B
| – | – |
-600,000
| Closed | -$29.4M |
|
9
Duke Energy
DUK
$93.4B
| – | – |
-200,000
| Closed | -$20M |
|
|
10
MasTec
MTZ
$21.4B
| – | – |
-481,720
| Closed | -$51.5M |
|
|
11
Micron Technology
MU
$1.09T
| – | – |
-591,000
| Closed | -$77.7M |
|
|
12
iShares 20+ Year Treasury Bond ETF
TLT
$45.5B
| – | – |
-399,900
| Closed | -$36.7M |
|
13
State Street Utilities Select Sector SPDR ETF
XLU
$22.2B
| – | – |
-5,850
| Closed | -$199K |
|
Similar funds
William Harnisch's Q3 2024 Portfolio in Review
As of Q3 2024, William Harnisch held 13 positions worth $2.39B, up 2.5% from $2.33B the previous quarter. Its ten largest holdings account for 100% of the portfolio.
William Harnisch withdrew a net $291M in Q3 2024, closing 7 positions and reducing 2 holdings. Its most notable exit was Carnival Corporation Ltd, an estimated $81.3M position sold in full.
By sector, the portfolio is most concentrated in Industrials at 98% of assets, up from 89% a quarter earlier, followed by Technology and Consumer Discretionary.
Against the trend, William Harnisch opened a new position in iShares MSCI Emerging Markets ETF worth $27.5M.
- William Harnisch's largest Q3 2024 buy was iShares MSCI Emerging Markets ETF: 600,000 shares worth $27.5M.
- William Harnisch's biggest Q3 2024 reduction was Quanta Services, cutting an estimated $26.4M.
- William Harnisch fully exited Carnival Corporation Ltd in Q3 2024, selling an estimated $81.3M.
- William Harnisch's ten largest holdings make up 100% of its $2.39B portfolio in Q3 2024.
- William Harnisch opened 2 new positions and closed 7 in Q3 2024.
- William Harnisch's portfolio value rose 2.5% quarter-over-quarter to $2.39B.
Based on Peconic Partners's 13F filing for Q3 2024, filed 14 Nov 2024.