RUSH ISLAND MANAGEMENT, LP — Quarter-over-Quarter 13F Allocation Shifts Q1 2026
In Q1 2026, RUSH ISLAND MANAGEMENT, LP initiated 9 new positions, increased allocation to 4 existing positions, trimmed 9 positions, and exited 4 positions entirely. The fund's 13F equity book declined from $1.60B to $1.49B (-6.8% QoQ) . All deltas are sourced from sequential SEC Form 13F-HR filings; share-count changes reflect explicit trading activity, while weight changes can also include price movement. This page lists every position change reported — the portfolio overview shows a summary of the top shifts.
Net Portfolio Value Change
- $1.60BPrior quarter
- $1.49BCurrent quarter
- $-0.11BNet delta
- -6.8%% change
New Position Initiations Q1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Allocation Weight | History |
|---|---|---|---|
| INVITATION HOMES INC | INVH | 7.06% | History → |
| INDEPENDENCE RLTY TR INC | IRT | 3.45% | History → |
| AGREE RLTY CORP | ADC | 3.43% | Holders → |
| ESSENTIAL PPTYS RLTY TR INC | EPRT | 2.54% | Holders → |
| SABRA HEALTH CARE REIT INC | SBRA | 2.06% | Holders → |
| COSTAR GROUP INC | CSGP | 1.31% | Holders → |
| APPLE HOSPITALITY REIT INC | APLE | 1.15% | Holders → |
| JANUS LIVING, INC. | JAN | 0.47% | Holders → |
| SONIDA SENIOR LIVING ORD | SNDA | 0.47% | Holders → |
Largest Allocation Increases Q1 2026
Largest portfolio-weight increases in existing positions. Share-count delta is shown separately so price-only re-weighting can be distinguished from active adds.
| Company | Ticker | Δ Weight | Δ Shares | History |
|---|---|---|---|---|
| KILROY REALTY CORP | KRC | +3.05% | +84.54% | History → |
| ESSEX PPTY TR INC | ESS | +2.70% | +26.79% | History → |
| SITE CTRS CORP | SITC | +0.01% | +11.43% | Holders → |
| AMERICOLD REALTY TRUST INC | COLD | +0.03% | +5.76% | Holders → |
Largest Allocation Reductions Q1 2026
Largest portfolio-weight decreases in existing positions (positions kept open at a lower allocation).
| Company | Ticker | Δ Weight | Δ Shares | History |
|---|---|---|---|---|
| FEDERAL RLTY INVT TR NEW | FRT | -3.54% | -50.31% | History → |
| SIX FLAGS ENTERTAINMENT CORP | FUN | -0.03% | -21.45% | Holders → |
| HEALTHCARE RLTY TR | HR | -1.31% | -19.79% | History → |
| NNN REIT INC | NNN | -0.75% | -19.14% | History → |
| SBA COMMUNICATIONS CORP | SBAC | -2.94% | -16.92% | History → |
| FIRST INDUSTRIAL REALTY TRUST, INC. | FR | -0.63% | -15.64% | History → |
| VENTAS INC | VTR | -0.20% | -14.13% | History → |
| CURBLINE PPTYS CORP | CURB | 0.04% | -13.51% | Holders → |
| ACADIA RLTY TR | AKR | -0.04% | -1.72% | Holders → |
Exited Positions Q1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| UDR INC | UDR | 8.17% |
| REALTY INCOME CORP | O | 7.06% |
| NATIONAL STORAGE AFFILIATES | NSA | 2.11% |
| SMARTSTOP SELF STORAG REIT I | SMA | 0.98% |
Methodology & FAQ
How RUSH ISLAND MANAGEMENT, LP Quarterly Changes Are Computed
Each row above is computed by joining the most recent 13F-HR filing for RUSH ISLAND MANAGEMENT, LP against the immediately preceding quarterly filing for the same fund. Portfolio weights are normalized to exclude listed options for comparability. A complete description of the methodology — including how confidential treatment filings are handled and why share count rather than weight is the cleaner trading signal — is documented in the Methodology.
Which positions did RUSH ISLAND MANAGEMENT, LP initiate in Q1 2026?
RUSH ISLAND MANAGEMENT, LP established 9 new positions in Q1 2026: INVITATION HOMES INC (INVH, 7.06%), INDEPENDENCE RLTY TR INC (IRT, 3.45%), AGREE RLTY CORP (ADC, 3.43%), ESSENTIAL PPTYS RLTY TR INC (EPRT, 2.54%), SABRA HEALTH CARE REIT INC (SBRA, 2.06%), COSTAR GROUP INC (CSGP, 1.31%), APPLE HOSPITALITY REIT INC (APLE, 1.15%), JANUS LIVING, INC. (JAN, 0.47%), SONIDA SENIOR LIVING ORD (SNDA, 0.47%).
Which existing positions saw the largest allocation increases for RUSH ISLAND MANAGEMENT, LP in Q1 2026?
The largest portfolio-weight increases in existing positions were: KILROY REALTY CORP (KRC, +3.05% weight, +84.54% shares), ESSEX PPTY TR INC (ESS, +2.70% weight, +26.79% shares), SITE CTRS CORP (SITC, +0.01% weight, +11.43% shares), AMERICOLD REALTY TRUST INC (COLD, +0.03% weight, +5.76% shares).
Which positions did RUSH ISLAND MANAGEMENT, LP fully exit in Q1 2026?
RUSH ISLAND MANAGEMENT, LP fully exited 4 positions in Q1 2026: UDR INC (UDR, last-reported weight 8.17%), REALTY INCOME CORP (O, last-reported weight 7.06%), NATIONAL STORAGE AFFILIATES (NSA, last-reported weight 2.11%), SMARTSTOP SELF STORAG REIT I (SMA, last-reported weight 0.98%).
Which existing positions saw the largest allocation reductions for RUSH ISLAND MANAGEMENT, LP in Q1 2026?
The largest portfolio-weight reductions in positions kept open were: FEDERAL RLTY INVT TR NEW (FRT, -3.54% weight, -50.31% shares), SIX FLAGS ENTERTAINMENT CORP (FUN, -0.03% weight, -21.45% shares), HEALTHCARE RLTY TR (HR, -1.31% weight, -19.79% shares), NNN REIT INC (NNN, -0.75% weight, -19.14% shares), SBA COMMUNICATIONS CORP (SBAC, -2.94% weight, -16.92% shares), FIRST INDUSTRIAL REALTY TRUST, INC. (FR, -0.63% weight, -15.64% shares), VENTAS INC (VTR, -0.20% weight, -14.13% shares), CURBLINE PPTYS CORP (CURB, 0.04% weight, -13.51% shares), ACADIA RLTY TR (AKR, -0.04% weight, -1.72% 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.