CIK: 0001631664
Total reported value
$270.6M
Reporting period: 2026-03-31 · Number of holdings: 5
Punch Card Management L.P. disclosed 5 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $270.6M and a quarterly turnover rate of 10.6%.
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Punch Card Management L.P.'s disclosed holdings carry a Herfindahl concentration index of 0.246 — mathematically equivalent to about 4 equally-sized positions, close to its 5 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.54), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 44% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Add BRK-A
0.0% -$5.3M
Trim SGOV
-18.7% -$10.5M
Trim PYPL
0.0% -$8.3M
Add CROX
0.0% -$1.5M
Add PDD
0.0% -$4.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 38.47% | +2.09% | — | |
| 2 | CROX | Crocs INC | Stock-Consumer Disc | 18.24% | +1.34% | — | |
| 3 | SGOV | Ishares 0-3 Month Treasury B | ETF-Gov Bonds | 17.11% | -1.77% | -18.73% | |
| 4 | PDD | Pdd Holdings INC | Stock-Consumer Disc | 15.67% | +0.03% | — | |
| 5 | PYPL | Paypal Holdings INC | Stock-Financials | 10.51% | -1.69% | — |
Performance for Q3 2026
—
Performance Last 4 Quarters
—
Based on 0 months of available history
Based on 44% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 5 | $270.6M | 11 | |
| 2025-12-31 | 5 | $300.9M | 7 | |
| 2025-09-30 | 6 | $322.4M | 42 | |
| 2025-06-30 | 6 | $309.9M | 0 | |
| 2025-03-31 | 4 | $216.6M | 100 | |
| 2024-12-31 | 4 | $315.1M | 0 | |
| 2024-09-30 | 4 | $334.6M | 0 | |
| 2024-06-30 | 4 | $338.3M | 0 | |
| 2024-03-31 | 5 | $400.0M | 0 | |
| 2023-12-31 | 5 | $381.0M | 0 | |
| 2023-09-30 | 5 | $346.1M | 0 | |
| 2023-06-30 | 4 | $347.2M | 0 | |
| 2023-03-31 | 4 | $319.3M | 0 | |
| 2022-12-31 | 4 | $308.7M | 0 | |
| 2022-09-30 | 4 | $300.7M | 0 | |
| 2022-06-30 | 4 | $322.7M | 0 | |
| 2022-03-31 | 3 | $390.1M | 0 | |
| 2021-12-31 | 3 | $390.6M | 0 | |
| 2021-09-30 | 3 | $385.7M | 0 | |
| 2021-06-30 | 3 | $379.6M | 10 | |
| 2021-03-31 | 3 | $361.8M | 19 | |
| 2020-12-31 | 3 | $300.0M | 19 | |
| 2020-09-30 | 3 | $247.0M | 22 | |
| 2020-06-30 | 3 | $226.7M | 26 | |
| 2020-03-31 | 4 | $198.4M | 49 | |
| 2019-12-31 | 3 | $240.4M | 17 | |
| 2019-09-30 | 3 | $202.2M | 4 | |
| 2019-06-30 | 3 | $209.6M | 27 | |
| 2019-03-31 | 4 | $211.9M | 34 | |
| 2018-12-31 | 3 | $160.8M | 12 | |
| 2018-09-30 | 4 | $162.6M | 13 | |
| 2018-06-30 | 5 | $154.7M | 8 | |
| 2018-03-31 | 4 | $155.6M | 16 | |
| 2017-12-31 | 3 | $176.8M | 10 | |
| 2017-09-30 | 3 | $164.7M | 5 | |
| 2017-06-30 | 3 | $157.4M | 30 | |
| 2017-03-31 | 3 | $209.2M | 9 | |
| 2016-12-31 | 3 | $214.2M | 16 | |
| 2016-09-30 | 3 | $199.6M | 5 | |
| 2016-06-30 | 3 | $191.0M | 9 | |
| 2016-03-31 | 3 | $206.7M | 35 | |
| 2015-12-31 | 5 | $189.1M | 14 | |
| 2015-09-30 | 7 | $166.8M | 57 | |
| 2015-06-30 | 5 | $115.9M | 11 | |
| 2015-03-31 | 4 | $121.7M | 6 | |
| 2014-12-31 | 3 | $128.5M | 0 |
Punch Card Management L.P.'s most significant position changes for 2026-03-31: Trim: Ishares 0-3 Month Treasury B (SGOV) — shares -18.73%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | BRK-A | Berkshire Hathaway Inc-cl A | +2.1% | — | Unchanged |
| 2 | CROX | Crocs INC | +1.3% | — | Unchanged |
| 3 | PDD | Pdd Holdings INC | 0% | — | Unchanged |
| 4 | PYPL | Paypal Holdings INC | -1.7% | — | Unchanged |
| 5 | SGOV | Ishares 0-3 Month Treasury B | -1.8% | -18.73% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-15 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-15 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-16 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-17 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-16 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-16 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-14 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-15 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-14 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-14 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-14 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-15 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-14 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-14 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-14 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-14 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-14 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-15 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-16 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-16 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-16 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-14 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-15 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-17 | 13F-HR | View on EDGAR |
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