13F Portfolios

Diameter Capital Partners LP 13F: Quarter-over-Quarter Portfolio Changes

Diameter Capital Partners LP reported a disclosed portfolio value of approximately $939.7 million in its latest SEC Form 13F-HR filing for Q2 2026, up 79.9% quarter on quarter. Over the quarter, the fund initiated 18 new positions, bought more shares in 5 holdings, trimmed 6 holdings, and exited 7 positions.

Diameter Capital Partners LP's top buy was a new stake in Ishares Gold Tr (IAU) , equal to 27.0% of the disclosed portfolio. Its top sell was Nebius Group N.V. (NBIS 1.25 03/15/31) . The fund exited the position completely after it had accounted for 7.4% of the previous portfolio.

New PositionsQ2 2026

Securities disclosed for the first time in Q2 2026 that were not present in the prior 13F-HR filing.

Top BuysQ2 2026

The fund's top buys among existing positions in Q2 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.

Diameter Capital Partners LP top buys in existing positions in Q2 2026
CompanyTickerPortfolio Weight ChangeMore SharesHistory
JAMES HARDIE INDS PLCJHX+3.1%+2244.2%History →
MASTERBRAND INCMBC+2.8%+209.2%History →
VISTANCE NETWORKS INCVISN+-0.4%+118.8%Holders →
ARDAGH METAL PACKAGING S AAMBP+-0.9%+12.6%Holders →
FORTUNE BRANDS INNOVATIONS IFBIN+-1.0%+2.4%History →

Top SellsQ2 2026

The fund's top sells among positions it retained in Q2 2026. Ranked by portfolio-weight impact. Full exits are listed separately.

Diameter Capital Partners LP top sells in existing positions in Q2 2026
CompanyTickerPortfolio Weight ChangeShares SoldHistory
BARINGS BDC INCBBDC-2.2%93.4%Holders →
ECHOSTAR CORPSATS-29.4%77.8%History →
SILA REALTY TRUST INCSILA-3.3%58.4%Holders →
NUVEEN CHURCHILL DIRECT LENDNCDL-2.6%56.2%Holders →
PENNANTPARK FLOATING RATE CAPFLT-1.8%45.6%Holders →
UNITI GROUP LLCUNIT-5.3%29.6%History →

Full ExitsQ2 2026

Positions present in the prior 13F-HR filing that no longer appear in Q2 2026.

Diameter Capital Partners LP full exits in Q2 2026
CompanyTickerLast-Reported Portfolio Weight
NEBIUS GROUP N.V.NBIS 1.25 03/15/317.4%
NEBIUS GROUP N.V.NBIS 2.625 03/15/33 .7.1%
PG&E CORPPCG4.0%
UWM HOLDINGS CORPORATIONUWMC4.0%
SLR INVESTMENT CORPSLRC2.3%
RHRH0.8%
LIBERTY MEDIA CORP DELLINTA 3.75 02/15/300.1%
Latest

Net Portfolio Value ChangeQ2 2026

  • $0.5B
    Prior quarter
  • $0.9B
    Current quarter
  • +$0.4B
    Net delta
  • +79.9%
    % change

Methodology & FAQ

How Diameter Capital Partners LP Quarterly Changes Are Computed

All deltas are sourced from sequential SEC Form 13F-HR filings for Diameter Capital Partners LP: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description, including how confidential treatment filings are handled, is documented in the Methodology.

What stocks did Diameter Capital Partners LP buy in Q2 2026?

In Q2 2026, Diameter Capital Partners LP initiated 18 new positions (ISHARES GOLD TR (IAU), SHARONAI HOLDINGS INC (SHAZ), TELEPHONE & DATA SYS INC (TDS), SPACE EXPLORATION TECHN CORP (SPCX), WOLFSPEED INC (WOLF), KEEL INFRASTRUCTURE CORP (KEEL), COMCAST CORP NEW (CMCSA), OVINTIV INC (OVV), SOLARIS ENERGY INFRAS INC (SEI), CHARTER COMMUNICATIONS INC (CHTR), CEREBRAS SYSTEMS INC (CBRS), WINGSTOP INC (WING), COMMUNITY HEALTH SYS INC NEW (CYH), CARLYLE SECURED LENDING INC (CGBD), BRINKER INTL INC (EAT), FORWARD AIR CORP (FWRD), SOLV ENERGY INC (MWH), INNIO NV (INIO)); bought more shares of JAMES HARDIE INDS PLC (JHX), MASTERBRAND INC (MBC), VISTANCE NETWORKS INC (VISN), ARDAGH METAL PACKAGING S A (AMBP), FORTUNE BRANDS INNOVATIONS I (FBIN).

What stocks did Diameter Capital Partners LP sell in Q2 2026?

In Q2 2026, Diameter Capital Partners LP fully sold 7 positions (NEBIUS GROUP N.V. (NBIS 1.25 03/15/31), NEBIUS GROUP N.V. (NBIS 2.625 03/15/33 .), PG&E CORP (PCG), UWM HOLDINGS CORPORATION (UWMC), SLR INVESTMENT CORP (SLRC), RH (RH), LIBERTY MEDIA CORP DEL (LINTA 3.75 02/15/30)); reduced holdings in BARINGS BDC INC (BBDC), ECHOSTAR CORP (SATS), SILA REALTY TRUST INC (SILA), NUVEEN CHURCHILL DIRECT LEND (NCDL), PENNANTPARK FLOATING RATE CA (PFLT) (the largest 5 of 6 reductions).

Which positions did Diameter Capital Partners LP initiate in Q2 2026?

Diameter Capital Partners LP established 18 new positions in Q2 2026: ISHARES GOLD TR (IAU, 27.0%), SHARONAI HOLDINGS INC (SHAZ, 13.5%), TELEPHONE & DATA SYS INC (TDS, 6.6%), SPACE EXPLORATION TECHN CORP (SPCX, 4.5%), WOLFSPEED INC (WOLF, 3.2%), KEEL INFRASTRUCTURE CORP (KEEL, 2.5%), COMCAST CORP NEW (CMCSA, 2.2%), OVINTIV INC (OVV, 2.2%), SOLARIS ENERGY INFRAS INC (SEI, 1.3%), CHARTER COMMUNICATIONS INC (CHTR, 1.1%), CEREBRAS SYSTEMS INC (CBRS, 0.8%), WINGSTOP INC (WING, 0.7%), COMMUNITY HEALTH SYS INC NEW (CYH, 0.7%), CARLYLE SECURED LENDING INC (CGBD, 0.6%), BRINKER INTL INC (EAT, 0.5%), FORWARD AIR CORP (FWRD, 0.5%), SOLV ENERGY INC (MWH, 0.3%), INNIO NV (INIO, 0.2%).

Which existing positions saw the largest allocation increases for Diameter Capital Partners LP in Q2 2026?

Of 5 existing positions with share-count increases in Q2 2026, the largest were: JAMES HARDIE INDS PLC (JHX, +3.1% weight, +2244.2% shares), MASTERBRAND INC (MBC, +2.8% weight, +209.2% shares), VISTANCE NETWORKS INC (VISN, +-0.4% weight, +118.8% shares), ARDAGH METAL PACKAGING S A (AMBP, +-0.9% weight, +12.6% shares), FORTUNE BRANDS INNOVATIONS I (FBIN, +-1.0% weight, +2.4% shares).

Which positions did Diameter Capital Partners LP fully exit in Q2 2026?

Diameter Capital Partners LP fully exited 7 positions in Q2 2026: NEBIUS GROUP N.V. (NBIS 1.25 03/15/31, last-reported weight 7.4%), NEBIUS GROUP N.V. (NBIS 2.625 03/15/33 ., last-reported weight 7.1%), PG&E CORP (PCG, last-reported weight 4.0%), UWM HOLDINGS CORPORATION (UWMC, last-reported weight 4.0%), SLR INVESTMENT CORP (SLRC, last-reported weight 2.3%), RH (RH, last-reported weight 0.8%), LIBERTY MEDIA CORP DEL (LINTA 3.75 02/15/30, last-reported weight 0.1%).

Which existing positions saw the largest allocation reductions for Diameter Capital Partners LP in Q2 2026?

Of 6 existing positions with share-count reductions in Q2 2026, the largest were: BARINGS BDC INC (BBDC, -2.2% weight, -93.4% shares), ECHOSTAR CORP (SATS, -29.4% weight, -77.8% shares), SILA REALTY TRUST INC (SILA, -3.3% weight, -58.4% shares), NUVEEN CHURCHILL DIRECT LEND (NCDL, -2.6% weight, -56.2% shares), PENNANTPARK FLOATING RATE CA (PFLT, -1.8% weight, -45.6% shares), UNITI GROUP LLC (UNIT, -5.3% weight, -29.6% shares).

Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?

No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.