RI
Rush Island Management, LP 13F Holdings (22 Positions, Q2 2026)
Rush Island Management, LPCIK: 0001736465
Sector-focusedMomentum followerQuality / disciplined sizing
Total reported value
$1.5B
Reporting period: 2026-06-30 · Number of holdings: 22
RUSH ISLAND MANAGEMENT, LP disclosed 22 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.5B and a quarterly turnover rate of 65.7%.
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Personality snowflake
- Concentration
- 23.35
- Portfolio Stability
- 65.71
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 44
- Sizing Uniformity
- 94.54
Rush Island Management, LP's disclosed holdings carry a Herfindahl concentration index of 0.058 — mathematically equivalent to about 17 equally-sized positions, close to its 22 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.55), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govTrim SBAC
-53.4% -$87.9M
New buy 09264B107
Trim ESS
-45.7% -$67.6M
Sold out FRT
New buy EQR
New buy AMT
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | INVH | Invitation Homes Inc | Stock-Real Estate | 9.10% | +2.04% | +7.27% | |
| 2 | ESS | Essex Property Trust Inc | Stock-Real Estate | 8.47% | -4.65% | -45.72% | |
| 3 | NNN | Nnn Reit Inc | Stock-Real Estate | 7.63% | -1.11% | -20.17% | |
| 4 | KRC | Kilroy Realty CORP | Stock-Real Estate | 7.31% | -1.89% | -39.40% | |
| 5 | HR | Healthcare Realty Trust Inc | Stock-Real Estate | 6.97% | -1.27% | -27.84% | |
| 6 | VTR | Ventas Inc | Stock-Real Estate | 6.55% | -1.15% | -20.60% | |
| 7 | SBRA | Sabra Health Care Reit Inc | Stock-Real Estate | 5.44% | +3.38% | +163.44% | |
| 8 | SBAC | Sba Communications CORP | Stock-Real Estate | 5.34% | -5.96% | -53.36% | |
| 9 | FR | First Industrial Realty Tr | Stock-Real Estate | 5.21% | -1.60% | -26.89% | |
| 10 | ✓ | Stock-Other | 5.14% | +5.14% | NEW | ||
| 11 | EQR | Equity Residential | Stock-Real Estate | 4.40% | +4.40% | NEW | |
| 12 | AMT | American Tower CORP | Stock-Real Estate | 4.39% | +4.39% | NEW | |
| 13 | ADC | Agree Realty CORP | Stock-Real Estate | 4.39% | +0.96% | +28.99% | |
| 14 | DOC | Healthpeak Properties Inc | Stock-Real Estate | 4.18% | +4.18% | NEW | |
| 15 | MAC | Macerich Co/the | Stock-Other | 3.45% | +3.45% | NEW | |
| 16 | EPRT | Essential Properties Realty | Stock-Real Estate | 3.22% | +0.68% | +30.50% | |
| 17 | IRT | Independence Realty Trust In | Stock-Real Estate | 2.56% | -0.89% | -32.97% | |
| 18 | ✓ | Stock-Other | 2.50% | +2.50% | NEW | ||
| 19 | VICI | Vici Properties Inc | Stock-Real Estate | 1.29% | +1.29% | NEW | |
| 20 | SITC | Site Centers CORP | Stock-Other | 1.18% | -0.43% | +1.22% | |
| 21 | POOL | Pool CORP | Stock-Industrials | 0.66% | +0.66% | NEW | |
| 22 | FUN | Six Flags Entertainment CORP | Stock-Other | 0.59% | -0.51% | -54.85% |
Portfolio Performance
Performance for Q3 2026
+1.3%
Performance Last 4 Quarters
+9.8%
- Stdev
- +16.4%
- Beta
- +0.86
- Alpha
- -7%
- Max Drawdown
- -11.5%
- Annualized Perf
- +9.3%
- Batting Avg vs S&P
- +36.1%
- Sortino
- +1.09
- Stutzer
- +0.18
- Treynor
- +0.12
- Sterling
- +0.49
- Calmar
- +0.81
- Information Ratio
- -0.8
- Tracking Error
- +12.2%
- Stdev Down
- +9.4%
- Winning Months %
- +55.6%
- Losing Months %
- +44.4%
- Best 12 Months
- +31.8%
- Worst 12 Months
- -2.5%
- Efficiency Ratio
- +0.23
- Sharpe
- +0.62
- Stdev Sectors
- +49.2%
- Skewness
- +0.3
- Kurtosis
- -0.09
- Upside Potential
- +2.93
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 22 | $1.5B | 66 | ||
| 2026 Q1 | 22 | $1.5B | 58 | ||
| 2025 Q4 | 17 | $1.6B | 34 | ||
| 2025 Q3 | 17 | $1.5B | 73 | ||
| 2025 Q2 | 18 | $1.5B | 0 | ||
| 2025 Q1 | 14 | $1.6B | 100 | ||
| 2024 Q4 | 14 | $1.5B | 0 | ||
| 2024 Q3 | 18 | $1.3B | 0 | ||
| 2024 Q2 | 13 | $1.2B | 0 | ||
| 2024 Q1 | 16 | $1.2B | 0 | ||
| 2023 Q4 | 16 | $1.3B | 0 | ||
| 2023 Q3 | 22 | $1.2B | 0 | ||
| 2023 Q2 | 18 | $1.1B | 0 | ||
| 2023 Q1 | 14 | $883.6M | 0 | ||
| 2022 Q4 | 15 | $606.7M | 0 | ||
| 2022 Q3 | 13 | $466.2M | 0 | ||
| 2022 Q2 | 17 | $457.2M | 0 | ||
| 2022 Q1 | 15 | $481.1M | 0 | ||
| 2021 Q4 | 19 | $545.1M | 0 | ||
| 2021 Q3 | 22 | $506.4M | 0 | ||
| 2021 Q2 | 24 | $455.6M | 92 | ||
| 2021 Q1 | 19 | $300.1M | 73 | ||
| 2020 Q4 | 19 | $258.7M | 90 | ||
| 2020 Q3 | 22 | $203.2M | 48 | ||
| 2020 Q2 | 18 | $192.6M | 84 | ||
| 2020 Q1 | 24 | $169.8M | 70 | ||
| 2019 Q4 | 12 | $139.0M | 100 | ||
| 2019 Q3 | 14 | $189.8M | 57 | ||
| 2019 Q2 | 18 | $200.9M | 50 | ||
| 2019 Q1 | 19 | $168.5M | 78 | ||
| 2018 Q4 | 15 | $147.9M | 0 |
Holding changes this quarter
Rush Island Management, LP's most significant position changes for 2026-06-30: New buy: ; Sold out: Federal Realty Invs Trust (FRT); New buy: Equity Residential (EQR); New buy: American Tower CORP (AMT); New buy: Healthpeak Properties Inc (DOC).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ✓ | +5.1% | NEW | New buy | |
| 2 | EQR | Equity Residential | +4.4% | NEW | New buy |
| 3 | AMT | American Tower CORP | +4.4% | NEW | New buy |
| 4 | DOC | Healthpeak Properties Inc | +4.2% | NEW | New buy |
| 5 | MAC | Macerich Co/the | +3.5% | NEW | New buy |
| 6 | SBRA | Sabra Health Care Reit Inc | +3.4% | +163.44% | Add |
| 7 | ✓ | +2.5% | NEW | New buy | |
| 8 | INVH | Invitation Homes Inc | +2% | +7.27% | Add |
| 9 | VICI | Vici Properties Inc | +1.3% | NEW | New buy |
| 10 | ADC | Agree Realty CORP | +1% | +28.99% | Add |
| 11 | EPRT | Essential Properties Realty | +0.7% | +30.50% | Add |
| 12 | POOL | Pool CORP | +0.7% | NEW | New buy |
| 13 | SITC | Site Centers CORP | -0.4% | +1.22% | Add |
| 14 | JAN | Janus Living Inc Cl-a-1 | -0.5% | EXIT | Sold out |
| 15 | SNDA | Sonida Senior Living Inc | -0.5% | EXIT | Sold out |
| 16 | FUN | Six Flags Entertainment CORP | -0.5% | -54.85% | Trim |
| 17 | IRT | Independence Realty Trust In | -0.9% | -32.97% | Trim |
| 18 | NNN | Nnn Reit Inc | -1.1% | -20.17% | Trim |
| 19 | APLE | Apple Hospitality Reit Inc | -1.2% | EXIT | Sold out |
| 20 | CURB | Curbline Properties CORP | -1.2% | EXIT | Sold out |
| 21 | VTR | Ventas Inc | -1.2% | -20.60% | Trim |
| 22 | HR | Healthcare Realty Trust Inc | -1.3% | -27.84% | Trim |
| 23 | CSGP | Costar Group Inc | -1.3% | EXIT | Sold out |
| 24 | FR | First Industrial Realty Tr | -1.6% | -26.89% | Trim |
| 25 | KRC | Kilroy Realty CORP | -1.9% | -39.40% | Trim |
| 26 | AKR | Acadia Realty Trust | -2.2% | EXIT | Sold out |
| 27 | COLD | Americold Realty Trust Inc | -2.4% | EXIT | Sold out |
| 28 | FRT | Federal Realty Invs Trust | -4.6% | EXIT | Sold out |
| 29 | ESS | Essex Property Trust Inc | -4.7% | -45.72% | Trim |
| 30 | SBAC | Sba Communications CORP | -6% | -53.36% | Trim |
💡
Data Source Notice: AlphaSMO is the web's most authoritative 13F / Inside Trader database. Institutional holdings and insider trades presented here are precisely computed to deliver accurate portfolio reporting.
Filing History
FAQ
What is Rush Island Management, LP and what type of investor is it?
Rush Island Management, LP is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $1.5B, spread across 22 disclosed positions.
What are Rush Island Management, LP's largest equity positions?
Based on the latest 13F filing, Rush Island Management, LP's top holdings by market value are:
1. Invitation Homes Inc (INVH) — $137.3M (9.1%)
2. Essex Property Trust Inc (ESS) — $127.9M (8.5%)
3. Nnn Reit Inc (NNN) — $115.1M (7.6%)
4. Kilroy Realty CORP (KRC) — $110.4M (7.3%)
5. Healthcare Realty Trust Inc (HR) — $105.2M (7.0%)
What changes did Rush Island Management, LP make in its most recent portfolio filing?
In the latest reported quarter, Rush Island Management, LP made 30 notable position adjustments: 8 new positions were initiated, 5 existing holdings were added to, 9 positions were partially reduced, and 8 were completely exited. The largest of these moves: New buy: ; Sold out: Federal Realty Invs Trust (FRT); New buy: Equity Residential (EQR); New buy: American Tower CORP (AMT); New buy: Healthpeak Properties Inc (DOC)
What sectors does Rush Island Management, LP focus on?
Rush Island Management, LP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Real Estate: 99.2%
• Industrials: 0.8%
Investment Profile
Rush Island Management, LP returned an annualized 9.3% over the trailing 36 months — underperforming the S&P 500 by 7.0 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.86 (less volatile than the market) and a 36% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 99.2% of the portfolio concentrated in Real Estate.
Its turnover score has risen from 0 to 66 over the past 4 quarters — a shift toward more active trading.
It has trimmed its SBAC position for two straight quarters, cutting it by $147.3M while still holding $80.5M.
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Developer Access
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