Skip to main content

Laura & John Arnold Foundation

Endowment
Location
HOUSTON, TX
Portfolio Value
Small $155,853,050
Diversification
Highly concentrated
Filing Date
Global Rank
#5,108 / 8,651 ▲ 504
Top Industry
Internet Content & Information 73.7%
3Y Alpha vs SPY
+5.5%
Period ended 59 days ago
Filed Aug 14, 2026 · 14d
3 quarters · since Dec 2025

Clone Performance

Feb 2026–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+13.9%
SPY
+13.1%
Annualised alpha
+1.7%
Max drawdown
−18.7%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends. Captured split ratios restate closes onto one basis; only an unusable ratio can exclude earlier closes for that listing. It tracks 100% of reported value on average across 3 quarters. Past performance does not predict future results.

Portfolio Concentration

3 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
73.7%
−5.2 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
5,829
Dec 2025 → Jun 2026 · range 5,829 – 7,899
Highly concentrated−837

Portfolio Trend

3 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Communication Services 73.7% $114,832,250
Consumer Cyclical 18.4% $28,600,800
Financial Services 8.0% $12,420,000

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
No qualifying positions this quarter.

Trimmed

Positions the filer reduced
No qualifying positions this quarter.

New Positions

Positions the filer opened this quarter
1 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
No qualifying positions this quarter.

Portfolio Positions

Export CSV View 13F filing
3 tracked positions · $155,853,050 total · filing declares 5 positions · $330,453,665 · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.