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 |
Alphabet (Google) Class A
GOOGL
|
+$28.4M |
| 2 |
iShares MSCI Emerging Markets ETF
EEM
|
+$25.8M |
| 3 |
Vanguard FTSE Emerging Markets ETF
VWO
|
+$25.4M |
| 4 |
Quanta Services
PWR
|
+$13.1M |
| 5 |
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
|
+$13.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Lennar Class A
LEN
|
+$23.8M |
| 2 |
Walmart Inc
WMT
|
+$19.6M |
| 3 |
Target
TGT
|
+$18.4M |
| 4 |
MasTec
MTZ
|
+$17.6M |
| 5 |
D.R. Horton
DHI
|
+$14.8M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Industrials | 48.5% |
| 2 | Communication Services | 9.84% |
| 3 | Consumer Discretionary | 8.74% |
| 4 | Real Estate | 4.73% |
| 5 | Technology | 3.47% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
76
MasTec
MTZ
$21.4B
| – | – |
-271,302
| Closed | -$17.6M |
|
77
MYR Group
MYRG
$4.84B
| – | – |
-1,200
| Closed | -$38K |
|
78
Plains GP Holdings
PAGP
$5.31B
| – | – |
-5,000
| Closed | -$106K |
|
79
United Rentals
URI
$68.4B
| – | – |
-90,000
| Closed | -$11.2M |
|
80
Viper Energy
VNOM
$16.3B
| – | – |
-19,400
| Closed | -$537K |
|
81
Whirlpool
WHR
$2.63B
| – | – |
-10,000
| Closed | -$1.58M |
|
|
82
Walmart Inc
WMT
$825B
| – | – |
-495,000
| Closed | -$19.6M |
|
|
WPRT
83
Westport Fuel Systems
WPRT
$34.8M
| – | – |
-2,500
| Closed | -$68K |
|
|
NEPT
84
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
| – | – |
-72
| Closed | -$358K |
|
|
GWPH
85
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
| – | – |
-150
| Closed | -$17K |
|
|
VAR
86
DELISTED
Varian Medical Systems, Inc.
VAR
| – | – |
-47,759
| Closed | -$5.69M |
|
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William Harnisch's Q4 2019 Portfolio in Review
As of Q4 2019, William Harnisch held 86 positions worth $490M, up 14% from $430M the previous quarter. Its ten largest holdings account for 83% of the portfolio.
William Harnisch deployed $27.1M of net new capital in Q4 2019, opening 30 new positions and adding to 9 existing holdings. Its largest new stake was iShares MSCI Emerging Markets ETF: 600,000 shares worth $26.9M.
By sector, the portfolio is most concentrated in Industrials at 49% of assets, down from 52% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was Target, an estimated $18.4M trimmed.
- William Harnisch's largest Q4 2019 buy was iShares MSCI Emerging Markets ETF: 600,000 shares worth $26.9M.
- William Harnisch added most to Alphabet (Google) Class A in Q4 2019, an estimated $28.4M increase.
- William Harnisch's biggest Q4 2019 reduction was Target, cutting an estimated $18.4M.
- William Harnisch fully exited Lennar Class A in Q4 2019, selling an estimated $23.8M.
- William Harnisch's ten largest holdings make up 83% of its $490M portfolio in Q4 2019.
- William Harnisch opened 30 new positions and closed 20 in Q4 2019.
- William Harnisch's portfolio value rose 14% quarter-over-quarter to $490M.
Based on Peconic Partners's 13F filing for Q4 2019, filed 14 Feb 2020.