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Q2 2026 13F · SEC CIK 1727012

Diameter Capital Partners LP

Hedge fundFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value
$759.9M
Reported positions
28
Top holdings a year, 3 yrs
+56.5%
Assets under management
$28.8B

Diameter Capital Partners LP is a hedge fund that reported 28 positions worth $759.9M in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Ishares Gold Tr (IAU, 33.4%), Telephone & Data Sys Inc (TDS, 8.2%), Masterbrand Inc Common Stock (MBC, 6.5%). A portfolio copying its top holdings returned 56.5% a year over the last 3 years, against 20.4% for the S&P 500.

Diameter Capital Partners LP holdings all 28 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Diameter Capital Partners LP 13F holdings
Stock% of 13F valueShare changeReported value
IAUIshares Gold Tr33.4%—$254.0M
TDSTelephone & Data Sys Inc8.2%—$62.0M
MBCMasterbrand Inc Common Stock6.5%+209.2%$49.2M
UNITUniti Group LLC6.0%-29.6%$45.9M
SPCXSpace Exploration Techn Corp5.6%—$42.7M
FBHSFortune Brands Innovations I5.0%+2.4%$38.2M
ECHOEchoStar Corp4.4%-77.8%$33.2M
JHXJames Hardie Inds PLC4.0%+2244.2%$30.7M
AMBPArdagh Metal Packaging S A3.1%+12.6%$23.8M
VISNVistance Networks Inc2.9%+118.8%$22.4M
CMCSAComcast Corp New2.7%—$20.6M
OVVOvintiv Inc Com2.7%—$20.5M
MAGNMagnera Corp1.9%+0.0%$14.2M
SILASila Realty Trust Inc1.7%-58.4%$13.3M
SOISolaris Energy Infrastructure Inc1.6%—$12.1M
CMCOColumbus Mckinnon Corp N Y1.4%+0.0%$10.8M
CHTRCharter Communications Inc1.4%—$10.7M
CBRSCerebras Systems Inc1.0%—$7.7M
NCDLNuveen Churchill Direct Lending Corp1.0%-56.2%$7.5M
WINGWingstop Inc0.9%—$6.9M
PFLTPennantpark Floating Rate Capital Ltd.0.9%-45.6%$6.7M
CYHCommunity Health Systems Inc0.8%—$6.1M
CGBDCarlyle Secured Lending Inc0.7%—$5.4M
EATBrinker International0.7%—$5.0M
FWRDForward Air Corp0.6%—$4.7M
MWHSolv Energy Inc0.4%—$2.7M
INIOInnio NV0.3%—$2.0M
BBDCBarings BDC Inc.0.1%-93.4%$823K

What Diameter Capital Partners LP bought and sold in Q2 2026, against Q1 2026.

New positions

Added to

Reduced

Sold out

Share counts compared with the Q1 2026 13F; a split also changes share counts.

How the holdings did against the S&P 500.

1 year
+105.5% /yr
S&P 500 +20.1%
3 years
+56.5% /yr
S&P 500 +20.4%
5 years
+29.4% /yr
S&P 500 +11.8%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter13F valuePositions
Q2 2026$759.9M28
Q1 2026$446.3M17
Q4 2025$894.5M32
Q3 2025$951.9M30
Q2 2025$341.0M19
Q1 2025$373.9M16
Q4 2024$467.6M20
Q3 2024$308.5M16
Q2 2024$295.3M13
Q1 2024$454.6M11
Q4 2023$224.0M10
Q3 2023$116.9M11

Questions about Diameter Capital Partners LP's portfolio

What stocks does Diameter Capital Partners LP own?

Diameter Capital Partners LP's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 28 positions worth $759.9M. The largest are Ishares Gold Tr (IAU) at 33.4%, Telephone & Data Sys Inc (TDS) at 8.2%, Masterbrand Inc Common Stock (MBC) at 6.5%, Uniti Group LLC (UNIT) at 6.0% and Space Exploration Techn Corp (SPCX) at 5.6%.

What did Diameter Capital Partners LP buy last quarter?

In Q2 2026, Diameter Capital Partners LP added a new position in Ishares Gold Tr (IAU), a new position in Telephone & Data Sys Inc (TDS), a new position in Space Exploration Techn Corp (SPCX), a new position in Comcast Corp New (CMCSA), a new position in Ovintiv Inc Com (OVV), James Hardie Inds PLC (JHX) (+2244.2% shares), Masterbrand Inc Common Stock (MBC) (+209.2% shares) and Vistance Networks Inc (VISN) (+118.8% shares), compared with its Q1 2026 filing.

What did Diameter Capital Partners LP sell last quarter?

In Q2 2026, Diameter Capital Partners LP sold all of Pg&e Corp (PCG), sold all of Uwm Holdings Corporation (UWMC), sold all of Slr Investment Corp (SLRC), sold all of Rh Com (RH), Barings BDC Inc. (BBDC) (-93.4% shares), EchoStar Corp (ECHO) (-77.8% shares) and Sila Realty Trust Inc (SILA) (-58.4% shares), compared with its Q1 2026 filing.

How has Diameter Capital Partners LP's portfolio performed?

A portfolio copying Diameter Capital Partners LP's 20 largest 13F holdings each quarter, from the day each filing was public, returned +56.5% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +105.5% against +20.1%. Over 5 years: +29.4% a year against +11.8%.

When is Diameter Capital Partners LP's next 13F filing due?

13F filings are due 45 days after each quarter ends. Diameter Capital Partners LP's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Diameter Capital Partners LP manage?

Diameter Capital Partners LP reported $28.8B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $759.9M.