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WH

William Harnisch Peconic Partners

AUM $8.04B
1-Year Est. Return 107.18%
 

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.

This Fund
S&P 500
This Quarter Est. Return
-8.64%
1 Year Est. Return
+107.18%
3 Year Est. Return
+300.02%
5 Year Est. Return
+691.8%
10 Year Est. Return
+3,202.62%
AUM
$409M
AUM Growth
+$12.4M
Cap. Flow
+$53.3M
Cap. Flow %
13.04%
Top 10 Hldgs %
93.75%
Holding
59
New
10
Increased
9
Reduced
9
Closed
16

Top Buys

Rank Stock Value
1
KMI icon
Kinder Morgan
KMI
+$24.5M
2
PWR icon
Quanta Services
PWR
+$20M
3
TSLA icon
Tesla
TSLA
+$14.2M
4
TRGP icon
Targa Resources
TRGP
+$10.6M
5
MSFT icon
Microsoft
MSFT
+$8.76M

Top Sells

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$10.9M
2
PAGP icon
Plains GP Holdings
PAGP
+$9.33M
3
VMW
VMware, Inc
VMW
+$7.67M
4
WMT icon
Walmart Inc
WMT
+$7.56M
5
FLXN
Flexion Therapeutics, Inc.
FLXN
+$4.17M

Sector Composition

Rank Sector Weight
1 Industrials 71.44%
2 Energy 8.41%
3 Technology 8.28%
4 Real Estate 4.83%
5 Consumer Discretionary 3.61%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FTK icon
26
Flotek Industries
FTK
$894M
$246K 0.06%
37,605
-11
-0% -$111
NEE icon
27
NextEra Energy
NEE
$174B
$226K 0.06%
5,200
– –
SHOP icon
28
Shopify
SHOP
$192B
$208K 0.05%
15,000
+10,000
+200% +$141K
GOOG icon
29
Alphabet (Google) Class C
GOOG
$4.18T
$207K 0.05%
4,000
– –
NEPT
30
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$192K 0.05%
54
– –
EQIX icon
31
Equinix
EQIX
$105B
$141K 0.03%
400
– –
TRIP icon
32
TripAdvisor
TRIP
$1.17B
$108K 0.03%
2,000
+1,000
+100% +$55.4K
PAGP icon
33
Plains GP Holdings
PAGP
$5.31B
$99K 0.02%
5,000
-421,023
-99% -$9.33M
HCR
34
DELISTED
Hi-Crush Inc. Common Stock
HCR
$90K 0.02%
25,000
-20,000
-44% -$139K
ACIA
35
DELISTED
Acacia Communications Inc
ACIA
$76K 0.02%
2,000
– –
FTNT icon
36
Fortinet
FTNT
$113B
$70K 0.02%
5,000
– –
NVDA icon
37
NVIDIA
NVDA
$5.2T
$40K 0.01%
+12,000
New +$57.4K
MYRG icon
38
MYR Group
MYRG
$4.84B
$34K 0.01%
1,200
– –
VIVS
39
VivoSim Labs
VIVS
$3.83M
$23K 0.01%
100
– –
MTZ icon
40
CALL
MasTec
MTZ
$21.4B
$20K ﹤0.01%
+500
New +$21.5K
EMES
41
DELISTED
Emerge Energy Services LP
EMES
$17K ﹤0.01%
10,800
– –
AAOI icon
42
Applied Optoelectronics
AAOI
$10.6B
$15K ﹤0.01%
1,000
– –
GM icon
43
General Motors
GM
$77.2B
$8K ﹤0.01%
234
– –
AFL icon
44
Aflac
AFL
$58.2B
– –
-50,000
Closed -$2.35M
CAKE icon
45
Cheesecake Factory
CAKE
$5.64B
– –
-1,000
Closed -$54K
CF icon
46
CF Industries
CF
$19.6B
– –
-73,710
Closed -$4.01M
EPD icon
47
Enterprise Products Partners
EPD
$82.1B
– –
-10,000
Closed -$287K
GOOGL icon
48
Alphabet (Google) Class A
GOOGL
$4.22T
– –
-180,000
Closed -$10.9M
HCC icon
49
Warrior Met Coal
HCC
$5.64B
– –
-30,000
Closed -$811K
PFE icon
50
Pfizer
PFE
$160B
– –
-10,540
Closed -$441K
1
2
3

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William Harnisch's Q4 2018 Portfolio in Review

As of Q4 2018, William Harnisch held 59 positions worth $409M, up 3.1% from $396M the previous quarter. Its ten largest holdings account for 94% of the portfolio.

William Harnisch deployed $53.3M of net new capital in Q4 2018, opening 10 new positions and adding to 9 existing holdings. Its largest new stake was Kinder Morgan: 1,448,885 shares worth $22.3M.

By sector, the portfolio is most concentrated in Industrials at 71% of assets, down from 74% a quarter earlier, followed by Energy and Technology.

On the sell side, the largest reduction was Plains GP Holdings, an estimated $9.33M trimmed.

  • William Harnisch's largest Q4 2018 buy was Kinder Morgan: 1,448,885 shares worth $22.3M.
  • William Harnisch added most to Quanta Services in Q4 2018, an estimated $20M increase.
  • William Harnisch's biggest Q4 2018 reduction was Plains GP Holdings, cutting an estimated $9.33M.
  • William Harnisch fully exited Alphabet (Google) Class A in Q4 2018, selling an estimated $10.9M.
  • William Harnisch's ten largest holdings make up 94% of its $409M portfolio in Q4 2018.
  • William Harnisch opened 10 new positions and closed 16 in Q4 2018.
  • William Harnisch's portfolio value rose 3.1% quarter-over-quarter to $409M.

Based on Peconic Partners's 13F filing for Q4 2018, filed 14 Feb 2019.