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Norbert Lou

Punch Card Management

2026Q1 · filed May 15, 20265 positions · $271Mtop-5 100%

Norbert Lou (Punch Card Management) discloses a $271M portfolio across 5 US-listed positions in the latest 13F filing (2026Q1, filed May 15, 2026). The largest holding is BRK/A at 38.5% of the book. Latticework's clone backtest puts this 13F book at -6.1%/yr vs SPY over 11.2 years.

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About Norbert Lou

Norbert Lou runs Punch Card Management, a Buffett-influenced, hyper-concentrated long-only vehicle that takes the "punch card" metaphor literally — the 13F filed for 2026 Q1 shows just five positions totaling roughly $271M, with Berkshire Hathaway anchoring the book at nearly 39%. Lou gained a following in value-investing circles partly through his association with the Columbia/Buffett intellectual tradition and his reputation for sitting on very few, very high-conviction ideas for extended periods. The current book — mixing a large-cap compounder, a consumer-discretionary turnaround (Crocs), a money-market proxy (SGOV), and two battleground names in PDD and PayPal — reads as a genuine reflection of the portfolio rather than a filing artifact, since a five-position fund has nowhere to hide. Readers should note that the latticework backtest shows roughly -6% annual excess return versus SPY over 11-plus years; concentration that cuts both ways is the explicit trade-off this style accepts.

2026Q1 brief

Punch Card Management's Norbert Lou ran an unchanged $270M, 5-position portfolio in Q1 2026 — no new buys, no trims, no exits — which is itself the signal. With 100% of assets in just five names, the zero-activity quarter reflects Lou's trademark extreme patience and the 'punch card' philosophy of making very few, very high-conviction decisions. BRK/A anchors at 38.5%, functioning as both a concentrated equity bet and a cash-equivalent buffer given Berkshire's balance sheet. CROX (18.2%) and PDD (15.7%) remain his two most distinctive calls: a footwear brand with elite margins and a Chinese e-commerce giant trading at a steep discount to Western peers, both reflecting contrarian willingness to hold controversial names through volatility. SGOV (17.1%, short-term Treasury ETF) is a meaningful liquidity sleeve that suggests Lou is either preserving dry powder or simply earning yield while waiting for his next high-conviction opportunity. PYPL (10.5%) rounds out the book as a beaten-down fintech rerating story. Watch for any single new position initiation — given the five-slot constraint, any addition would require an exit and would represent a major signal about where Lou sees the next decade of value.

AI-generated. Not investment advice.

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Holdings (5) · click any column to sort

Sort
  • port38.5%
    val$104M
    Berkshire Hathaway Inc-cl A
    this Q hold·40q
  • port18.2%
    val$49M
    Crocs Inc
    this Q hold·4q
  • port17.1%
    val$46M
    Ishares 0-3 Month Treasury B
    this Q hold·11q
  • port15.7%
    val$42M
    Pdd Holdings Inc
    this Q hold·6q
  • port10.5%
    val$28M
    Paypal Holdings Inc
    this Q hold·4q

Frequently asked questions

What stocks does Norbert Lou own?
As of 2026Q1, Norbert Lou's 13F discloses 5 positions worth $271M. The top five holdings: BRK/A (38.5%), CROX (18.2%), SGOV (17.1%), PDD (15.7%), PYPL (10.5%). 13F filings cover long US-listed equities only — cash, bonds, shorts, and non-US positions are not disclosed.
What did Norbert Lou buy this quarter?
The 2026Q1 filing shows no new purchases — no new positions were opened and no existing holdings were added to this quarter.
How big is Norbert Lou's portfolio?
$271M across 5 positions per the latest 13F (filed May 15, 2026). The top five holdings account for 100% of the disclosed book.

Explore more

Long US equity 13F-HR filings only — no shorts, no derivatives. SEC filings at EDGAR (CIK 0001631664). Not investment advice.