DOSSIER · 13F-HR · Q2 2026

Charter Oak Advisors LP

$182M in tracked AUM across 14 positions as of Q2 2026.

CO
CIK 0002022905 · last filed Jun 30, 2026
Total AUM
$182M
as of Q2 2026
Holdings
14
positions
Whale Score
71
71
strong
Activity
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of Charter Oak Advisors LP 13F Filing
Portfolio Overview

Charter Oak Advisors LP manages a highly concentrated portfolio totaling approximately $233.44 million across just 9 holdings as of September 30, 2025. The portfolio experienced a modest growth of +4.1% (an increase of roughly $9.09 million) compared to the previous quarter. The fund exhibits an extremely high level of conviction in its top assets, with the two largest positions—Talen Energy Corp (T...

Key Holdings

The portfolio is dominated by two massive positions:

  1. Talen Energy Corp (TLN): This is the largest holding, valued at $100.64 million, representing 43.11% of the portfolio. The fund holds 237,000 shares. The sheer size of this position indicates it is the primary driver of the fund's performance variance.
  2. SPDR S&P 500 ETF (SPY): The second-largest position is the S&P 500 ETF, valued at $99.93 million, or 42.81% of the portfolio. With 150,000 shares, this holding provides broad market exposure and liquidity.

Outside of these two anchors, the remaining positions are significantly smaller, ranging from roughly 0.2% to 4.6% of the portfolio. Golar LNG Ltd is the third-largest holding at $10.62 million (4.55%), followed by Pentair PLC at $5.35 million (2.29%). The remaining five positions—Intercontinental Exchange (ICE), KBR Inc, Valvoline Inc (VVV), Atmus Filtration Technologies (ATMU), and EOS Energy Enterprises Inc—collectively account for less than 7.3% of the total assets.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
TLN
TALEN ENERGY CORP
$41M107K22.7%
02
MOD
MODINE MFG CO
$32M122K17.9%
03
SON
SONOCO PRODS CO
$23M413K12.8%
04
N00985106
AERCAP HOLDINGS NV
$20M138K11.1%
05
G9456A100
GOLAR LNG LTD
$17M341K9.3%
06
RRX
REGAL REXNORD CORPORATION
$15M63K8.2%
07
COO
COOPER COS INC
$13M177K7.0%
08
SOXX
ISHARES TR
$9M15K5.1%
09
CR
CRANE COMPANY
$3M12K1.5%
10
G7S00T104
PENTAIR PLC
$2M28K1.2%

Filing history

2026Q2Jun 30
$182M 10.2%
14 positionsView →
2026Q1Mar 31
$165M 38.7%
13 positionsView →
2025Q4Dec 31
$119M 49.0%
13 positionsView →
2025Q3Sep 30
$233M 4.1%
9 positionsView →
2025Q2Jun 30
$224M 60.0%
15 positionsLocked
2025Q1Mar 31
$140M 19.6%
14 positionsLocked
2024Q4Dec 31
$175M
16 positionsLocked