Top Institutional Investors

Diametric Capital, LP — 13F Holdings & Portfolio

CIK 1719087 · latest 13F-HR filed 2026-08-14

Backtest portfolio

Diametric Capital, LP manages $948.5M in 13F-reported U.S. long-equity assets across 474 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (24.90%), PGEN (5.57%), SPLV (1.78%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 287 new positions and exited 285; 131 existing positions rose in reported value and 47 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Loading holdings…
AUM
$948.5M

Long-equity book

Holdings
474

Distinct positions

Period
2026-06-30

Filed 2026-08-14

Q/Q Activity
+287 / −285 / ↑131 / ↓47

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
SPY25.1% · newPGEN5.6% · +36%SPLV1.8% · +467%FLGT1.5% · +93%EFA1.1% · newAZ1.0% · +193%QURE1.0% · +972%LQDA0.9% · -37%ALM0.9% · +553%GLNG0.9% · +56%CLMT0.8% · +351%ABVX0.7% · +419%DLR0.7% · newTDS0.7% · +81%MGM0.6% · +212%BMNR0.6% · -1%VIXY0.6% · +252%CBRS0.6% · newFTAI0.6% · +661%LION0.6% · +11%EZPW0.5% · +195%HROW0.5% · +6%RRX0.5% · +1285%WYNN0.5% · +6%FLUT0.5% · +30%ABEO0.5% · +24%AEVA0.5% · newFIX0.5% · +138%PRKS0.4% · +311%RCL0.4% · +187%H0.4% · +234%ALH0.4% · +469%PPLI0.4% · newDOO0.4% · +207%SPSC0.4% · newSTRZ0.4% · -15%ETSY0.4% · newASPI0.4% · -44%ESE0.4% · +192%ZVRA0.4% · +114%BIDU0.4% · newAMZN0.3% · newBWA0.3% · newAIFC0.3% · -13%LYV0.3% · newEAT0.3% · -44%ECL0.3% · newMSGE0.3% · newGMTL0.3% · +33%HLT0.3% · newNOK0.3% · +9%TKO0.3% · newAEIS0.3% · +350%TTWO0.3% · newOUT0.3% · newDCH0.3% · +55%ETON0.3% · -53%SIMO0.3% · -37%TENB0.3% · newALAB0.3% · -74%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 39.7%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Oct 1, 2026.

Assets Under Management
$1.41B
Discretionary
$1.41B
Employees
14
Accounts
10
Address
131 DARTMOUTH STREET
3RD FLOOR
BOSTON, MA 02116
Phone
(617) 443-2020
Website
Name Title / Status Ownership Type
HAMILTON, DOUGLAS, WINTER ControlPRESIDENT AND CHIEF OPERATING OFFICER
since Aug 2026
Less than 5%Individual
HAYES, CHRISTOPHER, PETER ControlCHIEF COMPLIANCE OFFICER, COUNSEL
since Sep 2026
Less than 5%Individual
SALVIETTI, DAVID, RICHARD ControlCHIEF FINANCIAL OFFICER
since Mar 2020
Less than 5%Individual
THAKORE, NAINOOR, CHANDRESH ControlLIMITED PARTNER
since Dec 2016
75% or moreIndividual
BATTERY VENTURES XI-A, L.P.LIMITED PARTNER
since Apr 2017
5–10%Domestic Entity
DIAMETRIC CAPITAL GP LLCGENERAL PARTNER
since Dec 2016
Less than 5%Domestic Entity
Ownership & leadership changes · 5 filings with changes since May 5, 2017

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Oct 1, 2026 filing
  • No longer listedTYNAN, PATRICK, FITZGERALD · CHIEF OPERATING OFFICER · Less than 5% · control person · listed since Sep 2025
  • AddedHAMILTON, DOUGLAS, WINTER · PRESIDENT AND CHIEF OPERATING OFFICER · Less than 5% · control person
  • AddedHAYES, CHRISTOPHER, PETER · CHIEF COMPLIANCE OFFICER, COUNSEL · Less than 5% · control person
  • ChangedSALVIETTI, DAVID, RICHARD · title CHIEF COMPLIANCE OFFICER / CHIEF FINANCIAL OFFICER → CHIEF FINANCIAL OFFICER
Mar 31, 2026 filing
  • AddedTYNAN, PATRICK, FITZGERALD · CHIEF OPERATING OFFICER · Less than 5% · control person
  • ChangedSALVIETTI, DAVID, RICHARD · title CHIEF COMPLIANCE OFFICER / CHIEF OPERATING OFFICER → CHIEF COMPLIANCE OFFICER / CHIEF FINANCIAL OFFICER
Mar 30, 2020 filing
  • No longer listedGIRR, MADELEINE, NOELLE · CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Dec 2019
  • AddedSALVIETTI, DAVID, RICHARD · CHIEF COMPLIANCE OFFICER / CHIEF OPERATING OFFICER · Less than 5% · control person
Jan 6, 2020 filing
  • No longer listedSCHAFFER, PETER, ANDREW · CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Jan 2017
  • AddedGIRR, MADELEINE, NOELLE · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
May 31, 2017 filing
  • AddedBATTERY VENTURES XI-A, L.P. · LIMITED PARTNER · 5–10%
  • AddedDIAMETRIC CAPITAL GP LLC · GENERAL PARTNER · Less than 5%
  • ChangedTHAKORE, NAINOOR, CHANDRESH · title PARTNER → LIMITED PARTNER
May 5, 2017 filing (earliest on record)
  • ListedSCHAFFER, PETER, ANDREW · CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • ListedTHAKORE, NAINOOR, CHANDRESH · PARTNER · 75% or more · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Diametric Capital, LP Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 STATE STR SPDR S&P 500 ETF T SPY 78462F103 $236.2M 24.90% 316,249 SH
2 PRECIGEN INC PGEN 74017N105 $52.8M 5.57% 9,269,926 SH
3 INVESCO EXCH TRADED FD TR II SPLV 46138E354 $16.9M 1.78% 225,231 SH
4 FULGENT GENETICS INC FLGT 359664109 $14.3M 1.51% 697,784 SH
5 ISHARES TR EFA 464287465 $10.0M 1.05% 96,265 SH
6 A2Z CUST2MATE SOLUTIONS CORP AZ 002205102 $9.7M 1.02% 1,669,711 SH
7 UNIQURE NV QURE N90064101 $9.1M 0.96% 197,242 SH
8 LIQUIDIA CORPORATION LQDA 53635D202 $8.4M 0.89% 105,781 SH
9 ALMONTY INDS INC ALM 020398707 $8.3M 0.87% 500,000 SH
10 GOLAR LNG LTD GLNG G9456A100 $8.1M 0.85% 161,701 SH
11 PRECIGEN INC Call PGEN 74017N105 $8.0M 0.85% 1,412,000 SH
12 CALUMET INC CLMT 131428104 $7.4M 0.78% 206,372 SH
13 ABIVAX SA ABVX 00370M103 $6.9M 0.73% 51,903 SH
14 DIGITAL RLTY TR INC DLR 253868103 $6.6M 0.70% 36,720 SH
15 TELEPHONE & DATA SYS INC TDS 879433829 $6.3M 0.67% 171,273 SH
16 MGM RESORTS INTERNATIONAL MGM 552953101 $6.1M 0.64% 126,997 SH
17 BITMINE IMMERSION TECHS INC BMNR 09175A206 $6.0M 0.63% 449,294 SH
18 PROSHARES TR II VIXY 74347Y730 $5.5M 0.58% 257,377 SH
19 CEREBRAS SYSTEMS INC CBRS 15675D103 $5.4M 0.57% 24,362 SH
20 FTAI AVIATION LTD FTAI G3730V105 $5.3M 0.56% 19,691 SH
21 LIONSGATE STUDIOS CORP LION 53626N102 $5.2M 0.55% 341,383 SH
22 EZCORP INC EZPW 302301106 $5.0M 0.53% 145,000 SH
23 HARROW INC HROW 415858109 $5.0M 0.52% 116,908 SH
24 REGAL REXNORD CORPORATION RRX 758750103 $4.9M 0.52% 20,625 SH
25 WYNN RESORTS LTD WYNN 983134107 $4.9M 0.52% 50,433 SH
26 FLUTTER ENTMT PLC FLUT G3643J108 $4.8M 0.51% 47,190 SH
27 ABEONA THERAPEUTICS INC ABEO 00289Y206 $4.7M 0.49% 755,021 SH
28 AEVA TECHNOLOGIES INC AEVA 00835Q202 $4.5M 0.47% 156,158 SH
29 COMFORT SYS USA INC FIX 199908104 $4.5M 0.47% 2,247 SH
30 UNITED PARKS & RESORTS INC PRKS 81282V100 $4.2M 0.44% 87,365 SH
31 ROYAL CARIBBEAN GROUP RCL V7780T103 $4.2M 0.44% 13,088 SH
32 HYATT HOTELS CORP H 448579102 $3.9M 0.41% 20,275 SH
33 ALLIANCE LAUNDRY HLDGS INC ALH 01862Q107 $3.8M 0.40% 142,500 SH
34 PEOPLE INC PPLI 44891N208 $3.7M 0.39% 79,280 SH
35 BRP INC DOO 05577W200 $3.6M 0.38% 58,530 SH
36 SPS COMM INC SPSC 78463M107 $3.4M 0.36% 59,549 SH
37 STARZ ENTERTAINMENT CORP. STRZ 855919106 $3.4M 0.36% 117,467 SH
38 ETSY INC ETSY 29786A106 $3.4M 0.36% 44,737 SH
39 ASP ISOTOPES INC ASPI 00218A105 $3.3M 0.35% 538,517 SH
40 ESCO TECHNOLOGIES INC ESE 296315104 $3.3M 0.35% 9,493 SH
41 ZEVRA THERAPEUTICS INC ZVRA 488445206 $3.3M 0.35% 231,465 SH
42 BAIDU INC BIDU 056752108 $3.3M 0.35% 28,894 SH
43 AMAZON COM INC AMZN 023135106 $3.2M 0.34% 13,509 SH
44 BORGWARNER INC BWA 099724106 $3.2M 0.33% 47,581 SH
45 AI FINL CORP AIFC 47089W104 $3.2M 0.33% 5,394,578 SH
46 LIVE NATION ENTERTAINMENT IN LYV 538034109 $3.1M 0.33% 17,084 SH
47 BRINKER INTL INC EAT 109641100 $3.1M 0.33% 18,371 SH
48 ECOLAB INC ECL 278865100 $3.1M 0.32% 11,000 SH
49 MADISON SQUARE GARDEN ENTMT MSGE 558256103 $3.0M 0.31% 36,549 SH
50 GUARDIAN METAL RES PLC GMTL 401382106 $2.9M 0.31% 209,761 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $948.5M 474 0001719087-26-000005
2026-03-31 2026-05-15 $384.8M 473 0001719087-26-000003
2025-12-31 2026-02-13 $373.1M 368 0001719087-26-000002
2025-09-30 2025-11-13 $269.7M 374 0001719087-25-000010
Filer Information
Address
131 DARTMOUTH STREET
3RD FLOOR
BOSTON, MA 02116
Phone
(617) 443-2029
Filing Manager
Diametric Capital, LP
BOSTON, MA
Signatory
Dave Salvietti
COO and CCO