Islander Capital Partners, L.P. — Quarter-over-Quarter 13F Allocation Shifts Q1 2026
In Q1 2026, Islander Capital Partners, L.P. initiated 2 new positions, increased allocation to 9 existing positions, trimmed 2 positions, and exited 1 position entirely. The fund's 13F equity book grew from $0.22B to $0.25B (+14.3% 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
- $0.22BPrior quarter
- $0.25BCurrent quarter
- + $0.03BNet delta
- +14.3%% 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 |
|---|---|---|---|
| DOORDASH INC | DASH | 2.66% | History → |
| LIBERTY MEDIA CORP DEL | FWONK | 2.01% | 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 |
|---|---|---|---|---|
| TKO GROUP HOLDINGS INC | TKO | +2.24% | +172.09% | History → |
| KLAVIYO INC | KVYO | +0.30% | +97.19% | History → |
| ROBLOX CORP | RBLX | +1.16% | +84.78% | History → |
| AFFIRM HLDGS INC | AFRM | +-0.65% | +74.66% | History → |
| UBER TECHNOLOGIES INC | UBER | +0.42% | +60.86% | Holders → |
| SHOPIFY INC | SHOP | +0.22% | +59.02% | History → |
| MADISON SQUARE GARDEN ENTMT | MSGE | +0.54% | +47.18% | Holders → |
| SPOTIFY TECHNOLOGY S A | SPOT | +0.26% | +38.78% | History → |
| TRANSDIGM GROUP INC | TDG | +-0.96% | +13.64% | History → |
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 |
|---|---|---|---|---|
| AMAZON COM INC | AMZN | -2.42% | -34.01% | Holders → |
| NETFLIX INC | NFLX | -3.57% | -24.19% | History → |
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 |
|---|---|---|
| ZILLOW GROUP INC | Z | 1.99% |
Methodology & FAQ
How Islander Capital Partners, L.P. Quarterly Changes Are Computed
Each row above is computed by joining the most recent 13F-HR filing for Islander Capital Partners, L.P. 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 Islander Capital Partners, L.P. initiate in Q1 2026?
Islander Capital Partners, L.P. established 2 new positions in Q1 2026: DOORDASH INC (DASH, 2.66%), LIBERTY MEDIA CORP DEL (FWONK, 2.01%).
Which existing positions saw the largest allocation increases for Islander Capital Partners, L.P. in Q1 2026?
The largest portfolio-weight increases in existing positions were: TKO GROUP HOLDINGS INC (TKO, +2.24% weight, +172.09% shares), KLAVIYO INC (KVYO, +0.30% weight, +97.19% shares), ROBLOX CORP (RBLX, +1.16% weight, +84.78% shares), AFFIRM HLDGS INC (AFRM, +-0.65% weight, +74.66% shares), UBER TECHNOLOGIES INC (UBER, +0.42% weight, +60.86% shares), SHOPIFY INC (SHOP, +0.22% weight, +59.02% shares), MADISON SQUARE GARDEN ENTMT (MSGE, +0.54% weight, +47.18% shares), SPOTIFY TECHNOLOGY S A (SPOT, +0.26% weight, +38.78% shares), TRANSDIGM GROUP INC (TDG, +-0.96% weight, +13.64% shares).
Which positions did Islander Capital Partners, L.P. fully exit in Q1 2026?
Islander Capital Partners, L.P. fully exited 1 position in Q1 2026: ZILLOW GROUP INC (Z, last-reported weight 1.99%).
Which existing positions saw the largest allocation reductions for Islander Capital Partners, L.P. in Q1 2026?
The largest portfolio-weight reductions in positions kept open were: AMAZON COM INC (AMZN, -2.42% weight, -34.01% shares), NETFLIX INC (NFLX, -3.57% weight, -24.19% 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.