Vault-13

Oakcliff Capital Partners, LP

New York, NY · CIK 1657335 · 13F filing filed 2026-08-13

SEC-registered investment adviser since 2018 · limited liability company

As an employer

$268.5m reported value +18.5% vs Q1 2026
9positions
100.0%in top 10
1 new 1 added 0 reduced 0 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#SecurityTickerShares Value% of portfolioChangeShares change
1 INTERACTIVE BROKERS GROUP IN COM CL A IBKR IBKR 1,030,740 $89.7m33.42% 33.42% UnchangedShares held: Q3 2025 1.0m, Q4 2025 1.0m, Q1 2026 1.0m, Q2 2026 1.0m
2 ALPHABET INC CAP STK CL C GOOG GOOG 118,161 $41.7m15.55% 15.55% UnchangedShares held: Q3 2025 118.2k, Q4 2025 118.2k, Q1 2026 118.2k, Q2 2026 118.2k
3 GILDAN ACTIVEWEAR INC COM GIL GIL 681,689 $35.2m13.10% 13.10% UnchangedShares held: Q3 2025 681.7k, Q4 2025 681.7k, Q1 2026 681.7k, Q2 2026 681.7k
4 TRANSDIGM GROUP INC COM TDG TDG 24,170 $32.2m11.99% 11.99% UnchangedShares held: Q3 2025 24.2k, Q4 2025 24.2k, Q1 2026 24.2k, Q2 2026 24.2k
5 GUIDEWIRE SOFTWARE INC COM GWRE GWRE 158,683 $19.5m7.27% 7.27% AddedShares held: Q3 2025 65.7k, Q4 2025 83.2k, Q1 2026 144.2k, Q2 2026 158.7k +14.5k +14,500 10.1%
6 MOODYS CORP COM MCO MCO 34,000 $15.4m5.74% 5.74% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 34.0k
7 STAR GROUP L P UNIT LTD PARTNR SGU SGU 1,099,239 $14.1m5.26% 5.26% UnchangedShares held: Q3 2025 1.1m, Q4 2025 1.1m, Q1 2026 1.1m, Q2 2026 1.1m
8 LENNAR CORP CL A LEN LEN 118,000 $10.7m3.98% 3.98% UnchangedShares held: Q3 2025 118.0k, Q4 2025 118.0k, Q1 2026 118.0k, Q2 2026 118.0k
9 NATURAL RESOURCE PARTNERS L COM UNIT LTD PAR NRP NRP 102,057 $9.9m3.69% 3.69% UnchangedShares held: Q3 2025 169.1k, Q4 2025 127.4k, Q1 2026 102.1k, Q2 2026 102.1k