Jeff Research · Equity Deep-Dives

The research, published.

Institutional-grade deep-dives on semiconductors, AI infrastructure, and Indian equities — fundamentals, scenario trees, and valuation, written to be read. By Upamanyu Acharya.

TSM · Semiconductors30 June 2026

TSMC — The AI Foundry Monopoly

The only company every AI roadmap runs through. Monopoly pricing power intact, N2 ramp ahead of schedule — and the market still prices it like a cyclical.

ITC · India Consumer14 June 2026

ITC — When a Tax Shock Crosses Into Value

The GST-restructure sell-off, priced cigarette by cigarette. Where the fear is overdone, where it isn't, and the level at which the stock becomes an accumulate.

Zepto · IPO / DRHP13 June 2026

Zepto IPO — The DRHP, Actually Read

A line-by-line read of the draft prospectus: dark-store unit economics, the quick-commerce endgame, and a probability-weighted payoff for the listing.

Maruti · IEX · ITC11 June 2026

The Jeff Quarterly — India Desk

Three verdicts in one sitting: Maruti's export re-rating, IEX after the coupling shock, and ITC before the tax news broke.

CRDO · AI Interconnect8 June 2026

Credo — A Physics-to-Decision Deep-Dive

From SerDes physics to position sizing: why the AI-interconnect bottleneck runs through Credo's silicon, and what the moat is actually worth.

LRCX · Semi Equipment8 June 2026

Lam Research — Fully Priced Excellence

The best-positioned wafer-fab-equipment franchise of the AI inflection — and why being right about the business isn't the same as being right about the stock.