Norbert Lou

Punch Card Management

Quality compounders

Norbert Lou founded Punch Card Management and is its portfolio manager. The name refers to Warren Buffett's idea that an investor gets only a limited number of good decisions, and Lou has kept the partnership to a handful of stocks while doing the research himself. He rarely speaks publicly, so a fuller account of the process is not available.

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Norbert Lou

Punch Card Management

Quality compounders

Norbert Lou founded Punch Card Management and is its portfolio manager. The name refers to Warren Buffett's idea that an investor gets only a limited number of good decisions, and Lou has kept the partnership to a handful of stocks while doing the research himself. He rarely speaks publicly, so a fuller account of the process is not available.

Portfolio value

$256M

Number of holdings

5

Report date

Jun 30, 2026

Filing date

Aug 14, 2026

$BRK.A

$CROX

$PDD

$PYPL