RUSH ISLAND MANAGEMENT, LP

CIK

1736465

Location

NEW YORK, NY

Portfolio Value

Mid $1,490,688,885

Diversification

Diversified

Filing Date

Global Rank

#1,405 / 8,603 ▼ 29 · as of Mar 2026

Top Industry

REIT - Retail 24.2%

3Y Alpha vs SPY

-9.4%

Period ended 3 months ago

Filed May 15, 2026 · 55d

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+36.1%

SPY

+76.0%

Annualised alpha

-9.9%

Max drawdown

−18.7%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

22 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

13.1%

−1.1 pts

Top 5

50.6%

−1.3 pts

Top 10

80.2%

−8.4 pts

HHI

758

Diversified−93

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Real Estate	98.4%	$1,467,183,907	20
Consumer Cyclical	1.1%	$16,468,964	1
Healthcare	0.5%	$7,036,014	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

4 positions

Ticker	Company	Δ Shares	Shares	Value
KRC	Kilroy Realty Corp	+2,226,821	4,860,742	$137,121,531
SITC	SITE Centers Corp.	+456,032	4,445,666	$24,006,596
ESS	Essex Property Trust, Inc.	+170,682	807,893	$195,510,106
COLD	Americold Realty Trust	+168,657	3,097,316	$35,495,241
No positions match the current search.

Trimmed

Positions the filer reduced

9 positions

Ticker	Company	Δ Shares	Shares	Value
HR	Healthcare Realty Trust Inc	−1,782,540	7,225,362	$122,758,900
NNN	Nnn REIT, Inc.	−733,802	3,099,284	$130,262,906
FRT	Federal Realty Investment Trust	−646,557	638,538	$67,819,120
FR	First Industrial Realty Trust Inc	−325,198	1,754,344	$101,488,800
FUN	Six Flags Entertainment Corporation/NEW	−253,400	927,829	$16,468,964
VTR	Ventas, Inc.	−230,795	1,402,660	$114,709,534
SBAC	Sba Communications Corp	−199,205	978,390	$168,390,702
CURB	Curbline Properties Corp.	−103,813	664,514	$17,137,816
AKR	Acadia Realty Trust	−29,538	1,689,278	$32,298,995
No positions match the current search.

New Positions

Positions the filer opened this quarter

9 positions

Ticker	Company	Shares	Value
INVH	Invitation Homes Inc.	4,237,107	$105,292,108
IRT	Independence Realty Trust, Inc.	3,456,162	$51,462,252
ADC	Agree Realty Corp	677,438	$51,065,276
EPRT	Essential Properties Realty Trust, Inc.	1,249,087	$37,922,281
SBRA	Sabra Health Care REIT, Inc.	1,598,287	$30,735,059
CSGP	Costar Group, Inc.	483,200	$19,492,288
APLE	Apple Hospitality REIT, Inc.	1,489,435	$17,143,396
JAN	Janus Living, Inc.	300,000	$7,071,000
SNDA	Sonida Senior Living, Inc.	218,171	$7,036,014
No positions match the current search.

Sold Out

Positions the filer fully exited

4 positions

Ticker	Company	Shares	Value
UDR	UDR, Inc.	3,566,132	$130,805,721
O	Realty Income Corp	2,004,065	$112,969,144
NSA	National Storage Affiliates Trust	1,197,716	$33,787,568
SMA	SmartStop Self Storage REIT, Inc.	505,613	$15,643,666
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

22 positions · $1,490,688,885 total · as of Mar 31, 2026

All sectors Consumer Cyclical Healthcare Real Estate

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
ESS	Essex Property Trust, Inc. Real Estate	Added	807,893	+170,682	$195,510,106	+17.3%	13.12%
SBAC	Sba Communications Corp Real Estate	Reduced	978,390	-199,205	$168,390,702	−26.1%	11.30%
KRC	Kilroy Realty Corp Real Estate	Added	4,860,742	+2,226,821	$137,121,531	+39.3%	9.20%
NNN	Nnn REIT, Inc. Real Estate	Reduced	3,099,284	-733,802	$130,262,906	−14.2%	8.74%
HR	Healthcare Realty Trust Inc Real Estate	Reduced	7,225,362	-1,782,540	$122,758,900	−19.6%	8.24%
VTR	Ventas, Inc. Real Estate	Reduced	1,402,660	-230,795	$114,709,534	−9.2%	7.70%
INVH	Invitation Homes Inc. Real Estate	NEW	4,237,107	NEW	$105,292,108	NEW	7.06%
FR	First Industrial Realty Trust Inc Real Estate	Reduced	1,754,344	-325,198	$101,488,800	−14.8%	6.81%
FRT	Federal Realty Investment Trust Real Estate	Reduced	638,538	-646,557	$67,819,120	−47.6%	4.55%
IRT	Independence Realty Trust, Inc. Real Estate	NEW	3,456,162	NEW	$51,462,252	NEW	3.45%
ADC	Agree Realty Corp Real Estate	NEW	677,438	NEW	$51,065,276	NEW	3.43%
EPRT	Essential Properties Realty Trust, Inc. Real Estate	NEW	1,249,087	NEW	$37,922,281	NEW	2.54%
COLD	Americold Realty Trust Real Estate	Added	3,097,316	+168,657	$35,495,241	−5.8%	2.38%
AKR	Acadia Realty Trust Real Estate	Reduced	1,689,278	-29,538	$32,298,995	−8.5%	2.17%
SBRA	Sabra Health Care REIT, Inc. Real Estate	NEW	1,598,287	NEW	$30,735,059	NEW	2.06%
SITC	SITE Centers Corp. Real Estate	Reduced	4,445,666	-3,533,602	$24,006,596	−53.1%	1.61%
CSGP	Costar Group, Inc. Real Estate	NEW	483,200	NEW	$19,492,288	NEW	1.31%
APLE	Apple Hospitality REIT, Inc. Real Estate	NEW	1,489,435	NEW	$17,143,396	NEW	1.15%
CURB	Curbline Properties Corp. Real Estate	Reduced	664,514	-103,813	$17,137,816	−3.9%	1.15%
FUN	Six Flags Entertainment Corporation/NEW Consumer Cyclical	Reduced	927,829	-253,400	$16,468,964	−9.1%	1.10%
JAN	Janus Living, Inc. Real Estate	NEW	300,000	NEW	$7,071,000	NEW	0.47%
SNDA	Sonida Senior Living, Inc. Healthcare	NEW	218,171	NEW	$7,036,014	NEW	0.47%