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 |
MasTec
MTZ
|
+$16.8M |
| 2 |
Nutrien
NTR
|
+$15.5M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$15.4M |
| 4 |
WCC
WESCO International
WCC
|
+$14.9M |
| 5 |
Visa
V
|
+$12M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
EA
Electronic Arts
EA
|
+$14.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$7.53M |
| 3 |
Lowe's Companies
LOW
|
+$5.26M |
| 4 |
Dycom Industries
DY
|
+$4.85M |
| 5 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$3.43M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Industrials | 70.62% |
| 2 | Real Estate | 4.6% |
| 3 | Communication Services | 4.22% |
| 4 | Financials | 4.09% |
| 5 | Consumer Discretionary | 3.66% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1
Quanta Services
PWR
$96.1B
| $300M | 53.53% |
5,682,446
-3,758
| -0.1% | -$175K |
|
|
WCC
2
WESCO International
WCC
$17B
| $69.9M | 12.46% |
1,588,716
+350,000
| +28% | +$14.9M |
|
3
SBA Communications
SBAC
$19.4B
| $22.1M | 3.94% |
69,359
| – | – |
|
|
4
Alphabet (Google) Class A
GOOGL
$4.22T
| $17M | 3.04% |
232,500
+202,500
| +675% | +$15.4M |
|
|
5
Nutrien
NTR
$35.9B
| $16.7M | 2.97% |
+425,000
| New | +$15.5M |
|
|
6
MasTec
MTZ
$21.4B
| $16.5M | 2.93% |
+389,924
| New | +$16.8M |
|
|
7
Visa
V
$693B
| $12.1M | 2.15% |
60,290
+60,000
| +20,690% | +$12M |
|
8
Mastercard
MA
$509B
| $10.9M | 1.94% |
32,185
+32,000
| +17,297% | +$10.4M |
|
9
PG&E
PCG
$38.8B
| $9.58M | 1.71% |
1,020,319
+720,319
| +240% | +$6.67M |
|
|
APHA
10
DELISTED
Aphria Inc. Common Shares
APHA
| $8.93M | 1.59% |
2,015,515
+765,515
| +61% | +$3.58M |
|
11
MGM Resorts International
MGM
$11B
| $8.16M | 1.45% |
+375,000
| New | +$7.43M |
|
12
Cheniere Energy
LNG
$57.3B
| $7.4M | 1.32% |
+160,000
| New | +$8.11M |
|
13
Walmart Inc
WMT
$825B
| $7M | 1.25% |
+150,000
| New | +$6.67M |
|
14
Meta Platforms (Facebook)
META
$1.4T
| $6.42M | 1.14% |
+24,505
| New | +$6.32M |
|
15
TJX Companies
TJX
$155B
| $5.57M | 0.99% |
+100,000
| New | +$5.39M |
|
|
ETRN
16
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $5.5M | 0.98% |
+650,000
| New | +$6.35M |
|
17
Alaska Air
ALK
$4.51B
| $5.5M | 0.98% |
+150,000
| New | +$5.62M |
|
18
Silicon Laboratories
SLAB
$7.27B
| $5.18M | 0.92% |
52,920
+22,920
| +76% | +$2.3M |
|
19
Carnival Corporation Ltd
CCL
$35.2B
| $3.79M | 0.68% |
+250,000
| New | +$3.86M |
|
20
Southwest Airlines
LUV
$19.8B
| $3.75M | 0.67% |
+100,000
| New | +$3.55M |
|
21
Crown Castle
CCI
$32.1B
| $2.91M | 0.52% |
17,500
+10,000
| +133% | +$1.65M |
|
|
GOOS
22
Canada Goose Holdings
GOOS
$854M
| $2.41M | 0.43% |
+75,000
| New | +$1.85M |
|
23
iShares Biotechnology ETF
IBB
$10.7B
| $2.03M | 0.36% |
15,000
| – | – |
|
24
Shopify
SHOP
$192B
| $1.53M | 0.27% |
15,000
| – | – |
|
25
NXP Semiconductors
NXPI
$56.9B
| $1.25M | 0.22% |
10,000
| – | – |
|
Similar funds
William Harnisch's Q3 2020 Portfolio in Review
As of Q3 2020, William Harnisch held 73 positions worth $561M, up 56% from $359M the previous quarter. Its ten largest holdings account for 86% of the portfolio.
William Harnisch deployed $108M of net new capital in Q3 2020, opening 12 new positions and adding to 8 existing holdings. Its largest new stake was MasTec: 389,924 shares worth $16.5M.
By sector, the portfolio is most concentrated in Industrials at 71% of assets, down from 76% a quarter earlier, followed by Real Estate and Communication Services.
On the sell side, the largest reduction was Dycom Industries, an estimated $4.85M trimmed.
- William Harnisch's largest Q3 2020 buy was MasTec: 389,924 shares worth $16.5M.
- William Harnisch added most to Alphabet (Google) Class A in Q3 2020, an estimated $15.4M increase.
- William Harnisch's biggest Q3 2020 reduction was Dycom Industries, cutting an estimated $4.85M.
- William Harnisch fully exited Electronic Arts in Q3 2020, selling an estimated $14.5M.
- William Harnisch's ten largest holdings make up 86% of its $561M portfolio in Q3 2020.
- William Harnisch opened 12 new positions and closed 29 in Q3 2020.
- William Harnisch's portfolio value rose 56% quarter-over-quarter to $561M.
Based on Peconic Partners's 13F filing for Q3 2020, filed 16 Nov 2020.