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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
+5.6%
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
$999M
AUM Growth
+$46.1M
Cap. Flow
+$716K
Cap. Flow %
0.07%
Top 10 Hldgs %
96.34%
Holding
67
New
10
Increased
8
Reduced
7
Closed
16

Top Buys

Rank Stock Value
1
CLF icon
Cleveland-Cliffs
CLF
+$30.2M
2
XOM icon
ExxonMobil
XOM
+$23.9M
3
DY icon
Dycom Industries
DY
+$21.2M
4
WCC
WESCO International
WCC
+$12.8M
5
PXD
Pioneer Natural Resource Co.
PXD
+$4.71M

Top Sells

Rank Stock Value
1
TECK icon
Teck Resources
TECK
+$32.8M
2
MTZ icon
MasTec
MTZ
+$16.3M
3
VISN
Vistance Networks Inc
VISN
+$12.7M
4
TWTR
Twitter, Inc.
TWTR
+$10.8M
5
FCX icon
Freeport-McMoran
FCX
+$10.6M

Sector Composition

Rank Sector Weight
1 Industrials 80.81%
2 Materials 7.22%
3 Energy 3.65%
4 Real Estate 2.8%
5 Technology 2.02%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TROW icon
51
T. Rowe Price
TROW
$23.8B
$45K ﹤0.01%
228
– –
CAKE icon
52
Cheesecake Factory
CAKE
$5.64B
– –
-72,337
Closed -$4.23M
VISN
53
Vistance Networks Inc
VISN
$2.59B
– –
-823,653
Closed -$12.7M
EOG icon
54
EOG Resources
EOG
$80.3B
– –
-5,000
Closed -$363K
FCX icon
55
Freeport-McMoran
FCX
$110B
– –
-322,000
Closed -$10.6M
FTK icon
56
Flotek Industries
FTK
$894M
– –
-6,667
Closed -$67K
GOOGL icon
57
Alphabet (Google) Class A
GOOGL
$4.22T
– –
-2,500
Closed -$258K
IWM icon
58
iShares Russell 2000 ETF
IWM
$81.9B
– –
-1,100
Closed -$243K
PRIM icon
59
Primoris Services
PRIM
$4.15B
– –
-12,500
Closed -$414K
TECK icon
60
Teck Resources
TECK
$33.9B
– –
-1,707,900
Closed -$32.8M
XLE icon
61
State Street Energy Select Sector SPDR ETF
XLE
$41.7B
– –
-20,000
Closed -$491K
XLK icon
62
State Street Technology Select Sector SPDR ETF
XLK
$120B
– –
-20,000
Closed -$1.33M
YOLO icon
63
AdvisorShares Pure Cannabis ETF
YOLO
$35.9M
– –
-10,000
Closed -$236K
ETRN
64
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
– –
-1,055,026
Closed -$8.61M
SPLK
65
DELISTED
Splunk Inc
SPLK
– –
-2,000
Closed -$271K
TWTR
66
DELISTED
Twitter, Inc.
TWTR
– –
-170,000
Closed -$10.8M
APHA
67
DELISTED
Aphria Inc. Common Shares
APHA
– –
-15,000
Closed -$276K
1 2
3

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William Harnisch's Q2 2021 Portfolio in Review

As of Q2 2021, William Harnisch held 67 positions worth $999M, up 4.8% from $953M the previous quarter. Its ten largest holdings account for 96% of the portfolio.

William Harnisch's Q2 2021 filing shows 10 new, 8 increased, 7 reduced and 16 closed positions. Its largest new stake was ExxonMobil: 400,000 shares worth $25.2M. The largest sale was Teck Resources, an estimated $32.8M.

By sector, the portfolio is most concentrated in Industrials at 81% of assets, up from 80% a quarter earlier, followed by Materials and Energy.

  • William Harnisch's largest Q2 2021 buy was ExxonMobil: 400,000 shares worth $25.2M.
  • William Harnisch added most to Cleveland-Cliffs in Q2 2021, an estimated $30.2M increase.
  • William Harnisch's biggest Q2 2021 reduction was MasTec, cutting an estimated $16.3M.
  • William Harnisch fully exited Teck Resources in Q2 2021, selling an estimated $32.8M.
  • William Harnisch's ten largest holdings make up 96% of its $999M portfolio in Q2 2021.
  • William Harnisch opened 10 new positions and closed 16 in Q2 2021.
  • William Harnisch's portfolio value rose 4.8% quarter-over-quarter to $999M.

Based on Peconic Partners's 13F filing for Q2 2021, filed 16 Aug 2021.