Substack

Jimmy's Journal

Everything we have picked from this writer, newest first.

10 stories Visit Jimmy's Journal

Agentic AI: Winners and Losers

Meta’s Muse reached 3 million downloads and 700,000 daily users within 10 days, with forecasts of up to $28.5 billion in annual revenue…

Credo ($CRDO) Deep Dive

Credo's active electrical cables extend copper links to roughly 7 meters, targeting AI data-center connectivity as revenue grew 115% year…

The Quality Check #1

The Quality Check #1 reviews recent developments at Arista, Cummins, Veeva, ServiceNow and AppLovin following earnings season.

S&P Global ($SPGI) Deep Dive

S&P Global has fallen about 20% in 2026 as AI disruption fears test the durability of its ratings, indices and financial-data franchises.

Nubank ($NU) Deep Dive

Nubank has risen 318% from its 2022 low while sustaining 20-25% annual EPS growth, 30% ROE and a 15x P/E multiple.