Norbert Lou — Punch Card ManagementSuperinvestor
About Norbert Lou — Punch Card Management’s 13F portfolio
Norbert Lou — Punch Card Management is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Norbert Lou — Punch Card Management reported $270.6M across 5 US-listed positions (). Its largest position is BERKSHIRE HATHAWAY INC DEL (BRK-A) at 38% of the reported book, and its ten biggest holdings make up 100% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  BRK-A BERKSHIRE HATHAWAY INC DEL | $745,840.00 +0.11% | 38% | 145 | $104.1M |
| 2 |  CROX CROCS INC | $134.54 −0.13% | 18% | 595K | $49.4M |
| 3 |  SGOV ISHARES TR | $100.65 +0.01% | 17% | 460K | $46.3M |
| 4 |  PDD PDD HOLDINGS INC | $84.85 +2.65% | 16% | 415K | $42.4M |
| 5 |  PYPL PAYPAL HLDGS INC | $56.07 −0.14% | 11% | 629K | $28.4M |
Showing the 5 largest positions reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Financial Services49%
- Consumer Cyclical34%
- Unclassified17%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
Reading Norbert Lou — Punch Card Management’s 13F portfolio
Norbert Lou — Punch Card Management’s $270.6M 13F book is spread across 5 reported positions and is highly concentrated — its ten largest positions alone are 100% of the portfolio. A book this concentrated means a small group of names drives most of its performance. Its five largest positions are BRK-A, CROX, SGOV, PDD and PYPL, led by BERKSHIRE HATHAWAY INC DEL (BRK-A) at 38% of the portfolio. The heaviest sector exposure is Financial Services (49%), then Consumer Cyclical (34%).
What a 13F does and doesn’t reveal
A 13F captures only Norbert Lou — Punch Card Management’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Norbert Lou — Punch Card Management is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Norbert Lou — Punch Card Management's profile on this page is built directly from those filings.
How current is the 13F data on Norbert Lou — Punch Card Management's page?
It reflects Norbert Lou — Punch Card Management's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Norbert Lou — Punch Card Management files its next quarterly report, this page refreshes automatically.
Can I see Norbert Lou — Punch Card Management's complete list of holdings?
This page highlights Norbert Lou — Punch Card Management's largest positions rather than all 5 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Norbert Lou — Punch Card Management's filings.
Does a 13F show everything Norbert Lou — Punch Card Management owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Norbert Lou — Punch Card Management's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Norbert Lou — Punch Card Management made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.