undamentalytics Newsletter

Hedge fund

King Street Capital Management, L.P.

13F for the quarter to June 30, 2026, filed August 14, 2026 · SEC CIK 1218199

Reported value
$189.7m
71% in companies we cover
Positions we cover
4
Largest SGRY 53.7%
Copy, a year
+21.0%
S&P 500 +13.6%
Copy Sharpe ratio
0.65
S&P 500 0.75

How copying its 13F would have done

$10.0k$20.0k$40.0k$80.0k 2013201520172019202120232025 $119k$52.3k
CopyS&P 500 $10,000 copying King Street Capital Management, L.P.'s filed holdings in companies we cover from November 15, 2013, 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 −55.5% (S&P 500 −31.8%); beta 1.22; alpha +8.6% a year (t = 1.02); last 12 months +15.7% against +12.1%.

Reported value by quarter

King Street Capital Management, L.P.: 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 $100B $200B $300B $400B Reported value, 2013-06-30: $250.2M Reported value, 2013-09-30: $0 Reported value, 2013-12-31: $362.6M Reported value, 2014-03-31: $310.6M Reported value, 2014-06-30: $447.3M Reported value, 2014-09-30: $306.3M Reported value, 2014-12-31: $51.7M Reported value, 2015-03-31: $27.6M Reported value, 2015-06-30: $32.3M Reported value, 2015-09-30: $20M Reported value, 2016-12-31: $304.7M Reported value, 2017-03-31: $396.6M Reported value, 2017-06-30: $447.1M Reported value, 2017-09-30: $675.1M Reported value, 2017-12-31: $656.2M Reported value, 2018-03-31: $605.9M Reported value, 2018-06-30: $985.3M Reported value, 2018-09-30: $1.8B Reported value, 2018-12-31: $1.5B Reported value, 2019-03-31: $1.5B Reported value, 2019-06-30: $1.2B Reported value, 2019-09-30: $760.9M Reported value, 2019-12-31: $1.5B Reported value, 2020-03-31: $753.4M Reported value, 2020-06-30: $1B Reported value, 2020-09-30: $884.8M Reported value, 2020-12-31: $652.9M Reported value, 2021-03-31: $1.2B Reported value, 2021-06-30: $1.2B Reported value, 2021-09-30: $1.2B Reported value, 2021-12-31: $1.1B Reported value, 2022-03-31: $884.5M Reported value, 2022-06-30: $530.3M Reported value, 2022-09-30: $372.2M Reported value, 2022-12-31: $391.5B Reported value, 2023-03-31: $19M Reported value, 2023-06-30: $50.8M Reported value, 2023-09-30: $49M Reported value, 2023-12-31: $36M Reported value, 2024-03-31: $46.8M Reported value, 2024-06-30: $37.6M Reported value, 2024-09-30: $113M Reported value, 2024-12-31: $426.7M Reported value, 2025-03-31: $470.9M Reported value, 2025-06-30: $486.5M Reported value, 2025-09-30: $618.4M Reported value, 2025-12-31: $610.8M Reported value, 2026-03-31: $328M Reported value, 2026-06-30: $189.7M 2013-06-30 2016-12-31 2019-06-30 2021-12-31 2024-06-30 2026-06-30 $189.7M
View chart data
Period Reported value
2013-06-30 $250.2M
2013-09-30 $0
2013-12-31 $362.6M
2014-03-31 $310.6M
2014-06-30 $447.3M
2014-09-30 $306.3M
2014-12-31 $51.7M
2015-03-31 $27.6M
2015-06-30 $32.3M
2015-09-30 $20M
2016-12-31 $304.7M
2017-03-31 $396.6M
2017-06-30 $447.1M
2017-09-30 $675.1M
2017-12-31 $656.2M
2018-03-31 $605.9M
2018-06-30 $985.3M
2018-09-30 $1.8B
2018-12-31 $1.5B
2019-03-31 $1.5B
2019-06-30 $1.2B
2019-09-30 $760.9M
2019-12-31 $1.5B
2020-03-31 $753.4M
2020-06-30 $1B
2020-09-30 $884.8M
2020-12-31 $652.9M
2021-03-31 $1.2B
2021-06-30 $1.2B
2021-09-30 $1.2B
2021-12-31 $1.1B
2022-03-31 $884.5M
2022-06-30 $530.3M
2022-09-30 $372.2M
2022-12-31 $391.5B
2023-03-31 $19M
2023-06-30 $50.8M
2023-09-30 $49M
2023-12-31 $36M
2024-03-31 $46.8M
2024-06-30 $37.6M
2024-09-30 $113M
2024-12-31 $426.7M
2025-03-31 $470.9M
2025-06-30 $486.5M
2025-09-30 $618.4M
2025-12-31 $610.8M
2026-03-31 $328M
2026-06-30 $189.7M

Holdings and moves

CompanyShare of portfolioValueSharesChange in shares
SGRYSurgery Partners, Inc.53.66%$101.8m6.06M−40.8% Reduced
TLNTalen Energy Corp9.52%$18.1m47.0K0.0%
VSTVistra Corp.4.93%$9.4m59.0K0.0%
OPTUOptimum Communications, Inc.2.39%$4.5m3.13M−61.1% Reduced

None this quarter.

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

CompanySold (value)Shares
SGRYSurgery Partners, Inc.−$70.1m−4.17M
BABoeing−$51.4m−258.4K
BXSLBlackstone Secured Lending Fund−$29.6m−1.25M
UWMCUWM Holdings Corp−$28.2m−7.80M
UNITUniti Group Inc.−$23.4m−2.50M
VGVenture Global, Inc.−$14.0m−890.0K
OPTUOptimum Communications, Inc.−$7.1m−4.91M
AGNCAGNC Investment Corp.−$6.2m−615.0K

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

CompanyValue last quarterShares
BABoeing$51.4m258.4K
BXSLBlackstone Secured Lending Fund$29.6m1.25M
UWMCUWM Holdings Corp$28.2m7.80M
UNITUniti Group Inc.$23.4m2.50M
VGVenture Global, Inc.$14.0m890.0K
AGNCAGNC Investment Corp.$6.2m615.0K
  • Health Care76.1%
  • Utilities20.5%
  • Communication Services3.4%

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

PeriodCopy, a yearS&P 500SharpeS&P 500Biggest dropBeta
Whole backtestNovember 15, 2013 to November 2, 2026+21.0%+13.6%0.650.75−55.5%1.22
2018 onwardsJanuary 5, 2018 to November 2, 2026+24.5%+13.9%0.650.66−55.5%1.33
Last three yearsNovember 3, 2023 to November 2, 2026+51.2%+21.8%1.041.16−32.4%1.06
Last yearNovember 7, 2025 to November 2, 2026+19.2%+14.2%0.490.84−24.8%0.77

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.