IC
Islander Capital Partners, L.P. 13F Filings & AI Analysis
Islander Capital Partners, L.P.CIK: 0002081714
Sector-focusedMomentum followerQuality / disciplined sizing
Total reported value
$307.9M
Reporting period: 2026-03-31 · Number of holdings: 17
Islander Capital Partners, L.P. disclosed 17 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $307.9M and a quarterly turnover rate of 44.6%.
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Personality snowflake
- Concentration
- 42.48
- Portfolio Stability
- 44.64
- Momentum/Contrarian
- 100
- Sector conviction
- 100
- Diversification
- 32
- Sizing Uniformity
- 91.36
Islander Capital Partners, L.P.'s disclosed holdings carry a Herfindahl concentration index of 0.106 — mathematically equivalent to about 9 equally-sized positions, well below its 17 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.86), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 4.5 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Recent moves
Add AFRM
+318.2% $38.2M
Trim NFLX
-24.2% -$5.5M
Trim SPOT
+38.8% $6.8M
Trim AMZN
-34.0% -$4.5M
Trim TDG
+13.6% -$153.0K
Add TKO
+172.1% $6.2M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 16 holdings (of 17 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AFRM | Affirm Holdings INC | Stock-Financials | 20.31% | +9.36% | +318.19% | |
| 2 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 16.18% | -3.19% | +38.78% | |
| 3 | RBLX | Roblox CORP -class A | Stock-Comm Services | 8.41% | -0.64% | +84.78% | |
| 4 | SPHR | Sphere Entertainment Co | Stock-Comm Services | 8.39% | -1.04% | — | |
| 5 | KVYO | Klaviyo Inc-a | Stock-Other | 7.75% | -1.35% | +97.19% | |
| 6 | SHOP | Shopify INC - Class A | Stock-Tech | 7.55% | -1.39% | +59.02% | |
| 7 | NFLX | Netflix INC | Stock-Comm Services | 6.24% | -4.90% | -24.19% | |
| 8 | PSKY | Paramount Skydance Cl B | Stock-Comm Services | 5.76% | +5.76% | NEW | |
| 9 | TDG | Transdigm Group INC | Stock-Industrials | 5.11% | -2.05% | +13.64% | |
| 10 | TKO | Tko Group Holdings INC | Stock-Comm Services | 3.27% | +1.54% | +172.09% | |
| 11 | DASH | Doordash INC - A | Stock-Consumer Disc | 2.19% | +2.19% | NEW | |
| 12 | AMZN | Amazon.com INC | Stock-Consumer Disc | 2.16% | -2.88% | -34.01% | |
| 13 | UBER | Uber Technologies INC | Stock-Industrials | 1.80% | +0.04% | +60.86% | |
| 14 | TTWO | Take-two Interactive Softwre | Stock-Comm Services | 1.68% | -1.34% | — | |
| 15 | FWONK | Liberty Media Corp-formula-c | Stock-Comm Services | 1.66% | +1.66% | NEW | |
| 16 | MSGE | Madison Square Garden Entert | Stock-Other | 1.53% | +0.21% | +47.18% |
Portfolio Performance
Performance for Q3 2026
+1.3%
Performance Last 4 Quarters
+2.6%
Based on 5 months of available history
Based on 79% of reported portfolio value with available pricing
- Stdev
- +10.7%
- Beta
- +0.48
- Alpha
- -4.1%
- Max Drawdown
- -1.8%
- Annualized Perf
- +6.5%
- Batting Avg vs S&P
- +40%
- Sortino
- +1.23
- Stutzer
- —
- Treynor
- +0.14
- Sterling
- —
- Calmar
- +3.54
- Information Ratio
- -1.38
- Tracking Error
- +11.3%
- Stdev Down
- +5.5%
- Winning Months %
- +60%
- Losing Months %
- +40%
- Best 12 Months
- —
- Worst 12 Months
- —
- Efficiency Ratio
- +0.21
- Sharpe
- +0.63
- Stdev Sectors
- +19.4%
- Skewness
- +0.09
- Kurtosis
- -1.44
- Upside Potential
- +3.36
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
Islander Capital Partners, L.P.'s most significant position changes for 2026-03-31: New buy: Paramount Skydance Cl B (PSKY); New buy: Doordash INC - A (DASH); New buy: Liberty Media Corp-formula-c (FWONK); Sold out: Zillow Group INC - C (Z); Add: Affirm Holdings INC (AFRM) — shares +318.19%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AFRM | Affirm Holdings INC | +9.4% | +318.19% | Add |
| 2 | TKO | Tko Group Holdings INC | +1.5% | +172.09% | Add |
| 3 | MSGE | Madison Square Garden Entert | +0.2% | +47.18% | Add |
| 4 | UBER | Uber Technologies INC | 0% | +60.86% | Add |
| 5 | RBLX | Roblox CORP -class A | -0.6% | +84.78% | Add |
| 6 | SPHR | Sphere Entertainment Co | -1% | — | Unchanged |
| 7 | TTWO | Take-two Interactive Softwre | -1.3% | — | Unchanged |
| 8 | KVYO | Klaviyo Inc-a | -1.4% | +97.19% | Add |
| 9 | SHOP | Shopify INC - Class A | -1.4% | +59.02% | Add |
| 10 | TDG | Transdigm Group INC | -2.1% | +13.64% | Add |
| 11 | AMZN | Amazon.com INC | -2.9% | -34.01% | Trim |
| 12 | SPOT | Spotify Technology S.A. | -3.2% | +38.78% | Add |
| 13 | NFLX | Netflix INC | -4.9% | -24.19% | Trim |
| 14 | PSKY | Paramount Skydance Cl B | — | NEW | New buy |
| 15 | DASH | Doordash INC - A | — | NEW | New buy |
| 16 | FWONK | Liberty Media Corp-formula-c | — | NEW | New buy |
| 17 | Z | Zillow Group INC - C | — | EXIT | Sold out |
Filing History
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
FAQ
What is Islander Capital Partners, L.P. and what type of investor is it?
Islander Capital Partners, L.P. is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $307.9M, spread across 17 disclosed positions.
What are Islander Capital Partners, L.P.'s largest equity positions?
Based on the latest 13F filing, Islander Capital Partners, L.P.'s top holdings by market value are:
1. Affirm Holdings INC (AFRM) — $62.5M (20.3%)
2. Spotify Technology S.A. (SPOT) — $49.8M (16.2%)
3. Roblox CORP -class A (RBLX) — $25.9M (8.4%)
4. Sphere Entertainment Co (SPHR) — $25.8M (8.4%)
5. Klaviyo Inc-a (KVYO) — $23.9M (7.8%)
What changes did Islander Capital Partners, L.P. make in its most recent portfolio filing?
In the latest reported quarter, Islander Capital Partners, L.P. made 15 notable position adjustments: 3 new positions were initiated, 9 existing holdings were added to, 2 positions were partially reduced, and 1 were completely exited. The largest of these moves: New buy: Paramount Skydance Cl B (PSKY); New buy: Doordash INC - A (DASH); New buy: Liberty Media Corp-formula-c (FWONK); Sold out: Zillow Group INC - C (Z); Add: Affirm Holdings INC (AFRM) — shares +318.19%
What sectors does Islander Capital Partners, L.P. focus on?
Islander Capital Partners, L.P. is concentrated in the following sectors based on its current disclosed equity portfolio:
• Communication Services: 56.9%
• Financials: 22.4%
• Information Technology: 8.3%
• Industrials: 7.6%
• Consumer Discretionary: 4.8%
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