Punch Card Management L.P. is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2025, the fund manages $301M in reported equity holdings across 5 positions. The largest holdings are BRK.A (36.4%), ECNS.SN (18.9%), CROX (16.9%), PDD (15.6%), PYPL (12.2%). The portfolio is concentrated in Other (100.0%). Data sourced from SEC EDGAR 13F filings (CIK 1631664).