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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
-5.43%
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
$517M
AUM Growth
-$179M
Cap. Flow
-$160M
Cap. Flow %
-30.85%
Top 10 Hldgs %
95.4%
Holding
63
New
13
Increased
5
Reduced
9
Closed
21

Top Buys

Rank Stock Value
1
PWR icon
Quanta Services
PWR
+$163M
2
NUAN
Nuance Communications, Inc.
NUAN
+$11.8M
3
URI icon
United Rentals
URI
+$11.3M
4
WCC
WESCO International
WCC
+$7.77M
5
SMG icon
ScottsMiracle-Gro
SMG
+$3.48M

Top Sells

Rank Stock Value
1
NFX
Newfield Exploration
NFX
+$37.6M
2
EOG icon
EOG Resources
EOG
+$21.3M
3
JUNO
Juno Therapeutics, Inc.
JUNO
+$19.8M
4
WMT icon
Walmart Inc
WMT
+$9.74M
5
TJX icon
TJX Companies
TJX
+$9.05M

Sector Composition

Rank Sector Weight
1 Industrials 80.92%
2 Energy 6.99%
3 Real Estate 4%
4 Technology 3.1%
5 Healthcare 2.98%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PFE icon
26
Pfizer
PFE
$160B
$355K 0.07%
10,540
– –
PPLI
27
People Inc
PPLI
$2.86B
$313K 0.06%
11,191
– –
NEPT
28
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$275K 0.05%
70
-68
-49% -$282K
AMT icon
29
American Tower
AMT
$81.9B
$218K 0.04%
1,500
– –
NEE icon
30
NextEra Energy
NEE
$174B
$212K 0.04%
5,200
– –
SPLK
31
DELISTED
Splunk Inc
SPLK
$197K 0.04%
+2,000
New +$191K
CX icon
32
Cemex
CX
$16B
$172K 0.03%
26,000
– –
XYZ
33
Block Inc
XYZ
$49.4B
$172K 0.03%
+3,500
New +$161K
SLCA
34
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$102K 0.02%
+4,000
New +$123K
ACIA
35
DELISTED
Acacia Communications Inc
ACIA
$77K 0.01%
+2,000
New +$78.8K
EMES
36
DELISTED
Emerge Energy Services LP
EMES
$66K 0.01%
10,800
– –
FTNT icon
37
Fortinet
FTNT
$113B
$54K 0.01%
+5,000
New +$48.7K
ACAD icon
38
Acadia Pharmaceuticals
ACAD
$5.08B
$45K 0.01%
+2,000
New +$55.4K
MYRG icon
39
MYR Group
MYRG
$4.84B
$37K 0.01%
+1,200
New +$40.8K
AAOI icon
40
Applied Optoelectronics
AAOI
$10.6B
$25K ﹤0.01%
+1,000
New +$31.1K
VIVS
41
VivoSim Labs
VIVS
$3.83M
$25K ﹤0.01%
100
– –
GM icon
42
General Motors
GM
$77.2B
$9K ﹤0.01%
234
-100,000
-100% -$4.06M
AMLP icon
43
Alerian MLP ETF
AMLP
$13.2B
– –
-155,235
Closed -$8.38M
AYI icon
44
Acuity Brands
AYI
$10.3B
– –
-4,000
Closed -$704K
DKS icon
45
Dick's Sporting Goods
DKS
$16.4B
– –
-197,245
Closed -$5.67M
EOG icon
46
EOG Resources
EOG
$80.3B
– –
-196,940
Closed -$21.3M
PANW icon
47
Palo Alto Networks
PANW
$292B
– –
-280,500
Closed -$6.78M
TJX icon
48
TJX Companies
TJX
$155B
– –
-236,670
Closed -$9.05M
TMUS icon
49
CALL
T-Mobile US
TMUS
$196B
– –
-10,000
Closed -$635K
TMUS icon
50
T-Mobile US
TMUS
$196B
– –
-30,000
Closed -$1.91M
1
2
3

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William Harnisch's Q1 2018 Portfolio in Review

As of Q1 2018, William Harnisch held 63 positions worth $517M, down 26% from $696M the previous quarter. Its ten largest holdings account for 95% of the portfolio.

William Harnisch withdrew a net $160M in Q1 2018, closing 21 positions and reducing 9 holdings. Its most notable exit was Newfield Exploration, an estimated $37.6M position sold in full.

By sector, the portfolio is most concentrated in Industrials at 81% of assets, up from 39% a quarter earlier, followed by Energy and Real Estate.

Against the trend, William Harnisch opened a new position in Quanta Services worth $155M.

  • William Harnisch's largest Q1 2018 buy was Quanta Services: 4,500,381 shares worth $155M.
  • William Harnisch added most to United Rentals in Q1 2018, an estimated $11.3M increase.
  • William Harnisch's biggest Q1 2018 reduction was State Street SPDR S&P Oil & Gas Exploration & Production ETF, cutting an estimated $8.02M.
  • William Harnisch fully exited Newfield Exploration in Q1 2018, selling an estimated $37.6M.
  • William Harnisch's ten largest holdings make up 95% of its $517M portfolio in Q1 2018.
  • William Harnisch opened 13 new positions and closed 21 in Q1 2018.
  • William Harnisch's portfolio value fell 26% quarter-over-quarter to $517M.

Based on Peconic Partners's 13F filing for Q1 2018, filed 15 May 2018.