Arkolith/Funds/Zimmer Partners, LP

Zimmer Partners, LP

CIK 1565854
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

Zimmer Partners, LP holds a diversified book of 120 stocks worth $4.1B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Agree Realty Corp and trimmed Eversource Energy. Their largest long position is Agree Realty Corp at 6% of the equity book. They also disclosed $36.9M in put options (a bearish bet) and $34.8M in call options (bullish), shown separately below and excluded from the equity book.

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holdings, largest changes, and filing provenance.
Opened
43
new positions
Added to
33
existing
Trimmed
39
reduced
Sold out
42
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
28%
Top 10 holdings
47%
Top 20 holdings
65%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

96% mapped to company sectors

Utilities
54%
Real Estate
14%
Industrials
13%
Information Technology
4%
ETF / fund or unclassified
4%
Energy
3%
Financials
3%
Materials
2%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

120 positions
#SecurityValueShares% PortLast moveHistory
1Agree Rlty Corp
COM
$248.5M3.30M
6.1%
New
New position
2Nisource Inc
COM
$240.0M5.14M
5.9%
+33%
Added · +1.3M sh
3Eversource Energy
COM
$231.6M3.34M
5.7%
−13%
Reduced · −501K sh
4Welltower Inc
COM
$221.2M1.12M
5.4%
+0.2%
Added · +2K sh
5Xcel Energy Inc
COM
$208.9M2.63M
5.1%
−4.0%
Reduced · −110K sh
6Targa Res Corp
COM
$199.3M794.9K
4.9%
+1.7%
Added · +13K sh
7Kinder Morgan Inc Del
COM
$192.3M5.74M
4.7%
+43%
Added · +1.7M sh
8Kodiak Gas Svcs Inc
COM
$138.9M2.38M
3.4%
−44%
Reduced · −1.9M sh
9TXNM Energy Inc
NOTE 5.750% 6/0
$127.1M95.02M
3.1%
Held
10PG&E Corp
COM
$112.8M6.42M
2.8%
−12%
Reduced · −868K sh
11Entergy Corp New
COM
$104.3M928.6K
2.6%
−44%
Reduced · −733K sh
12Idacorp Inc
COM
$103.5M723.7K
2.5%
−9.6%
Reduced · −77K sh
13Wec Energy Group Inc
COM
$96.5M833.8K
2.4%
New
New position
14TXNM Energy Inc
COM
$89.6M1.53M
2.2%
−18%
Reduced · −330K sh
15Sempra
COM
$68.0M699.6K
1.7%
−50%
Reduced · −710K sh
16H2o America
COM
$58.7M1.00M
1.4%
23×
Added · +957K sh
17Duke Energy Corp New
COM NEW
$57.3M437.9K
1.4%
−32%
Reduced · −205K sh
18Forgent Power Solutions Inc
COM SHS CL A
$57.1M1.95M
1.4%
New
New position
19BKV Corp
COM
$55.5M1.95M
1.4%
+290%
Added · +1.4M sh
20Kratos Defense & Sec Solutio
COM NEW
$55.2M783.1K
1.4%
+770%
Added · +693K sh
21Caretrust REIT Inc
COM
$54.5M1.49M
1.3%
−16%
Reduced · −276K sh
22Southwest Gas Hldgs Inc
COM
$52.7M606.9K
1.3%
+228%
Added · +422K sh
23Black Hills Corp
COM
$51.4M741.0K
1.3%
+168%
Added · +465K sh
24Pinnacle West Cap Corp
COM
$50.4M500.1K
1.2%
+266%
Added · +364K sh
25CRH PLC
ORD
$42.0M400.0K
1.0%
+400%
Added · +320K sh
26Ge Aerospace
COM NEW
$36.9M130.0K
0.9%
+550%
Added · +110K sh
27Viper Energy Inc
CL A
$36.2M770.0K
0.9%
−56%
Reduced · −970K sh
28Loar Holdings Inc
COM SHS
$32.8M572.5K
0.8%
+108%
Added · +298K sh
29Dominion Energy Inc
COM
$30.9M500.0K
0.8%
New
New position
30NextEra Energy Inc
UNIT 02/15/2029
$30.7M609.3K
0.8%
New
New position
31Qxo Inc
COM NEW
$30.6M1.57M
0.8%
+163%
Added · +975K sh
32Vse Corp
COM
$29.6M160.5K
0.7%
New
New position
33Ryan Specialty Holdings Inc
CL A
$29.5M875.0K
0.7%
−13%
Reduced · −125K sh
34Amphenol Corp
CL A
$29.3M231.5K
0.7%
New
New position
35Transdigm Group Inc
COM
$29.0M25.0K
0.7%
−15%
Reduced · −4K sh
36James Riv Group Holdings Inc
COM SHS
$28.9M4.59M
0.7%
Held
37Nvent Elec PLC
SHS
$27.9M235.5K
0.7%
−37%
Reduced · −140K sh
38Builders Firstsource Inc
COM
$27.4M332.5K
0.7%
+93%
Added · +160K sh
39Waste Mgmt Inc Del
COM
$26.4M115.0K
0.6%
+4.5%
Added · +5K sh
40Emcor Group Inc
COM
$25.8M35.0K
0.6%
+112%
Added · +19K sh
41Alliance Laundry Hldgs Inc
COM
$23.7M1.15M
0.6%
+21%
Added · +195K sh
42Whirlpool Corp
COM
$23.2M430.5K
0.6%
New
New position
43Parker-Hannifin Corp
COM
$22.4M25.0K
0.5%
−17%
Reduced · −5K sh
44York WTR Co
COM
$22.3M732.7K
0.5%
−1.2%
Reduced · −9K sh
45Standardaero Inc
COM
$22.0M850.0K
0.5%
+135%
Added · +489K sh
46Core & Main Inc
CL A
$21.2M430.0K
0.5%
+115%
Added · +230K sh
47Casella Waste Sys Inc
CL A
$20.4M257.7K
0.5%
17×
Added · +243K sh
48Centerpoint Energy Inc
COM
$19.1M443.5K
0.5%
−56%
Reduced · −562K sh
49Smartstop Self Storag REIT I
COMMON STOCK
$18.2M600.0K
0.4%
−5.0%
Reduced · −32K sh
50USA Rare Earth Inc
COM
$17.4M1.15M
0.4%
New
New position
Showing 50 of 120 positions

Largest options & derivatives disclosed

Put / call positions from the 13F — totals include every disclosed option leg

Put notional (bearish)$36.9M
Call notional (bullish)$34.8M
TypeUnderlyingNotional valueUnderlying shares
PUT · bearishHAWAIIAN ELECTRIC INDSHE$22.3M1.5M
CALL · bullishEVERSOURCE ENERGYES$17.3M250K
PUT · bearishH2O AMERICAHTO$14.7M250K
CALL · bullishP G & E CORPPCG$8.8M500K
CALL · bullishBLACK HILLS CORPBKH$8.7M125K

13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 2026127$4.1B13F-HR
Q4 2025Dec 31, 2025Feb 17, 2026119$3.8B13F-HR
Q3 2025Sep 30, 2025Nov 14, 2025148$4.6B13F-HR
Q2 2025Jun 30, 2025Aug 14, 2025164$4.6B13F-HR
Q1 2025Mar 31, 2025May 15, 2025183$5.3B13F-HR
Q4 2024Dec 31, 2024Feb 14, 2025147$5.8B13F-HR
Q3 2024Sep 30, 2024Nov 14, 2024148$5.5B13F-HR
Q2 2024Jun 30, 2024Aug 14, 2024154$5.4B13F-HR
Q1 2024Mar 31, 2024May 15, 2024131$4.7B13F-HR
Q4 2023Dec 31, 2023Feb 14, 2024101$2.7B13F-HR
Q3 2023Sep 30, 2023Nov 14, 2023122$3.9B13F-HR
Q2 2023Jun 30, 2023Aug 14, 2023111$4.2B13F-HR
Q1 2023Mar 31, 2023May 15, 2023100$4.9B13F-HR
Q4 2022Dec 31, 2022Feb 14, 202378$5.0B13F-HR
Q3 2022Sep 30, 2022Nov 14, 202292$4.6B13F-HR
Q2 2022Jun 30, 2022Aug 15, 202288$4.8B13F-HR
Q1 2022Mar 31, 2022May 16, 2022110$7.0B13F-HR
Q4 2021Dec 31, 2021Feb 14, 2022116$6.7B13F-HR
Q3 2021Sep 30, 2021Nov 15, 2021141$6.4B13F-HR
Q2 2021Jun 30, 2021Aug 16, 2021172$7.4B13F-HR
Q1 2021Mar 31, 2021May 17, 2021168$7.4B13F-HR
Q4 2020Dec 31, 2020Feb 16, 2021122$6.8B13F-HR
Q3 2020Sep 30, 2020Nov 16, 2020120$6.5B13F-HR
Q2 2020Jun 30, 2020Aug 14, 2020107$7.4B13F-HR

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.