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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
-2.11%
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
$612M
AUM Growth
-$6.17M
Cap. Flow
+$24.8M
Cap. Flow %
4.05%
Top 10 Hldgs %
84.47%
Holding
47
New
5
Increased
11
Reduced
7
Closed
11

Top Buys

Rank Stock Value
1
CCI icon
Crown Castle
CCI
+$29.2M
2
MTZ icon
MasTec
MTZ
+$25.6M
3
MBLY
Mobileye N.V.
MBLY
+$18.4M
4
LEN icon
Lennar Class A
LEN
+$11.7M
5
CX icon
Cemex
CX
+$10.4M

Top Sells

Rank Stock Value
1
LH icon
Labcorp
LH
+$26.5M
2
AGN
Allergan plc
AGN
+$24.6M
3
META icon
Meta Platforms (Facebook)
META
+$7.72M
4
CIEN icon
Ciena
CIEN
+$6.97M
5
VC icon
Visteon
VC
+$6.25M

Sector Composition

Rank Sector Weight
1 Industrials 48.48%
2 Consumer Discretionary 22.34%
3 Technology 13.82%
4 Real Estate 8.49%
5 Materials 3.47%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AAPL icon
26
Apple
AAPL
$4.51T
$888K 0.15%
32,200
– –
LGF
27
DELISTED
Lions Gate Entertainment
LGF
$552K 0.09%
+15,000
New +$567K
MNDT
28
DELISTED
Mandiant, Inc. Common Stock
MNDT
$318K 0.05%
10,000
– –
ARMH
29
DELISTED
ARM HOLDINGS PLC ADS
ARMH
$260K 0.04%
6,000
– –
HW
30
DELISTED
Headwaters Inc
HW
$188K 0.03%
10,000
-25,000
-71% -$489K
AMCC
31
DELISTED
Applied Micro Circuits Corporation New
AMCC
$186K 0.03%
35,000
-10,000
-22% -$58.7K
NEPT
32
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$115K 0.02%
74
– –
HCR
33
DELISTED
Hi-Crush Inc. Common Stock
HCR
$97K 0.02%
13,000
-57,281
-82% -$953K
VIVS
34
VivoSim Labs
VIVS
$3.83M
$64K 0.01%
100
– –
OCLR
35
DELISTED
Oclaro Inc.
OCLR
$23K ﹤0.01%
10,000
– –
INSG icon
36
Inseego
INSG
$72.1M
$22K ﹤0.01%
+1,000
New +$25.5K
AEM icon
37
Agnico Eagle Mines
AEM
$109B
– –
-99,200
Closed -$2.81M
GOOG icon
38
Alphabet (Google) Class C
GOOG
$4.18T
– –
-198,000
Closed -$5.35M
LH icon
39
Labcorp
LH
$27.3B
– –
-254,287
Closed -$26.5M
META icon
40
Meta Platforms (Facebook)
META
$1.4T
– –
-90,000
Closed -$7.72M
MTG icon
41
MGIC Investment
MTG
$6.34B
– –
-479,930
Closed -$5.46M
RH icon
42
RH
RH
$2.9B
– –
-49,700
Closed -$4.85M
VC icon
43
Visteon
VC
$2.83B
– –
-59,500
Closed -$6.25M
CGRN
44
DELISTED
Capstone Green Energy Corporation Common Stock
CGRN
– –
-109
Closed -$9K
AGN
45
DELISTED
Allergan plc
AGN
– –
-81,110
Closed -$24.6M
SRCI
46
DELISTED
SRC Energy Inc
SRCI
– –
-51,700
Closed -$591K
SZYM
47
DELISTED
SOLAZYME INC COM STK (DE)
SZYM
– –
-43,756
Closed -$137K
1
2

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William Harnisch's Q3 2015 Portfolio in Review

As of Q3 2015, William Harnisch held 47 positions worth $612M, down 1% from $618M the previous quarter. Its ten largest holdings account for 84% of the portfolio.

William Harnisch deployed $24.8M of net new capital in Q3 2015, opening 5 new positions and adding to 11 existing holdings. Its largest new stake was Lennar Class A: 237,952 shares worth $10.9M.

By sector, the portfolio is most concentrated in Industrials at 48% of assets, up from 45% a quarter earlier, followed by Consumer Discretionary and Technology.

On the sell side, the largest reduction was Ciena, an estimated $6.97M trimmed.

  • William Harnisch's largest Q3 2015 buy was Lennar Class A: 237,952 shares worth $10.9M.
  • William Harnisch added most to Crown Castle in Q3 2015, an estimated $29.2M increase.
  • William Harnisch's biggest Q3 2015 reduction was Ciena, cutting an estimated $6.97M.
  • William Harnisch fully exited Labcorp in Q3 2015, selling an estimated $26.5M.
  • William Harnisch's ten largest holdings make up 84% of its $612M portfolio in Q3 2015.
  • William Harnisch opened 5 new positions and closed 11 in Q3 2015.
  • William Harnisch's portfolio value fell 1% quarter-over-quarter to $612M.

Based on Peconic Partners's 13F filing for Q3 2015, filed 16 Nov 2015.