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Peconic Partners LLC

13F for the quarter to June 30, 2026, filed August 14, 2026 · SEC CIK 1050464

Reported value
$7.5bn
99% in companies we cover
Positions we cover
6
Largest PWR 45.2%
Copy, a year
+29.1%
S&P 500 +11.6%
Copy Sharpe ratio
0.84
S&P 500 0.51

How copying its 13F would have done

$10.0k$20.0k$40.0k 202120222023202420252026 $35.4k$17.2k
CopyS&P 500 $10,000 copying Peconic Partners LLC's filed holdings in companies we cover from November 19, 2021, buying on the first trading day after each 13F was filed and holding until the next, against the S&P 500 (total return). Marked weekly, log scale. Before costs and taxes; misses trading within each quarter and anything 13F does not show (shorts, cash, bonds, non-US holdings).

Biggest drop −39.6% (S&P 500 −23.9%); beta 1.16; alpha +16.8% a year (t = 1.48); last 12 months +7.9% against +12.1%.

Reported value by quarter

Peconic Partners LLC: 13F reported value Total value of all positions in each quarter's 13F, as filed (values before 2023 were filed in thousands of dollars and are converted).
$0 $500B $1T $1.5T $2T Reported value, 2021-09-30: $1.1B Reported value, 2021-12-31: $1.2B Reported value, 2022-03-31: $1.3B Reported value, 2022-06-30: $1.4B Reported value, 2022-09-30: $1.4B Reported value, 2022-12-31: $1.5T Reported value, 2023-03-31: $1.8B Reported value, 2023-06-30: $2.1B Reported value, 2023-09-30: $1.7B Reported value, 2023-12-31: $2.1B Reported value, 2024-03-31: $2.3B Reported value, 2024-06-30: $2.3B Reported value, 2024-09-30: $2.4B Reported value, 2024-12-31: $2.5B Reported value, 2025-03-31: $2B Reported value, 2025-06-30: $3.1B Reported value, 2025-09-30: $3.6B Reported value, 2025-12-31: $4.2B Reported value, 2026-03-31: $5.8B Reported value, 2026-06-30: $7.5B 2021-09-30 2022-09-30 2023-09-30 2024-09-30 2025-09-30 2026-06-30 $7.5B
View chart data
Period Reported value
2021-09-30 $1.1B
2021-12-31 $1.2B
2022-03-31 $1.3B
2022-06-30 $1.4B
2022-09-30 $1.4B
2022-12-31 $1.5T
2023-03-31 $1.8B
2023-06-30 $2.1B
2023-09-30 $1.7B
2023-12-31 $2.1B
2024-03-31 $2.3B
2024-06-30 $2.3B
2024-09-30 $2.4B
2024-12-31 $2.5B
2025-03-31 $2B
2025-06-30 $3.1B
2025-09-30 $3.6B
2025-12-31 $4.2B
2026-03-31 $5.8B
2026-06-30 $7.5B

Holdings and moves

CompanyShare of portfolioValueSharesChange in shares
PWRQuanta Services45.19%$3.4bn4.72M−5.7% Reduced
DYDycom Industries Inc29.86%$2.2bn4.44M+8.0% Added
MTZMastec Inc20.35%$1.5bn3.68M+2.8% Added
FCXFreeport-McMoRan3.27%$246.3m3.92M+18.1% Added
AMCAMC Entertainment Holdings, Inc.0.81%$60.8m32.00M+966.7% Added
GOOGLAlphabet Inc. (Class A)0.01%$643,2661.8K0.0%
CompanyBought (value)Shares
DYDycom Industries Inc$166.8m330.0K
AMCAMC Entertainment Holdings, Inc.$55.1m29.00M
MTZMastec Inc$41.6m100.0K
FCXFreeport-McMoRan$37.7m600.0K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanySold (value)Shares
PWRQuanta Services−$206.6m−287.0K
AMZNAmazon−$198.6m−953.4K
FSLRFirst Solar, Inc.−$77.9m−395.0K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanyValue last quarterShares
AMZNAmazon$198.6m953.4K
FSLRFirst Solar, Inc.$77.9m395.0K
  • Industrials95.9%
  • Materials3.3%
  • Communication Services0.8%

Share of the value held in companies we cover, by sector.

PeriodCopy, a yearS&P 500SharpeS&P 500Biggest dropBeta
Whole backtestNovember 19, 2021 to November 2, 2026+29.1%+11.6%0.840.51−39.6%1.16
Last three yearsNovember 3, 2023 to November 2, 2026+42.7%+21.8%1.101.16−39.6%1.29
Last yearNovember 7, 2025 to November 2, 2026+8.9%+14.2%0.310.84−39.6%0.85

From SEC Form 13F data sets. A 13F lists long positions in US-listed shares at the quarter's end, filed up to 45 days later; it does not show shorts, cash, bonds, non-US holdings or trades within the quarter. Positions in companies outside our coverage are not listed here. Research, not investment advice.