The method behind the notes.

1. Define the universe and cutoff

This edition uses October 19, 2026 as its publication and information cutoff. Coverage comprises 100 company notes representing 101 constituent share classes, with Alphabet consolidated into one note. We reconstructed the universe from a dated constituent list and checked material 2026 changes against Nasdaq announcements. See the coverage record for the sources and limits. Sector labels follow the source list’s industry taxonomy rather than being investment recommendations.

2. Establish a source record

The principal evidence is company investor-relations material or SEC filings published no later than the cutoff. Every note links its sources and shows the newest cited evidence date. Investor-relations archive pages can change after publication; consult the dated report named in the citation. An undated page is labeled accordingly. A review date is not a company’s reporting date.

3. Separate evidence from interpretation

The “Reported context” box summarizes source material. The business thesis, drivers, risks, watch items, and valuation lens are our conditional interpretation. Management forecasts remain forecasts. Planned transactions and regulatory approvals are not treated as completed unless the source establishes completion.

4. Keep the financial distinctions visible

Revenue is not profit. Adjusted profit is not GAAP profit. Free cash flow definitions vary. Per-share growth can reflect buybacks, and currencies, acquisitions, accounting changes, or one-time items can alter comparisons. Notes discuss the distinctions relevant to the business instead of assigning every company the same checklist.

5. Do not invent valuation precision

This edition has no licensed stock-price feed and no independently verified October 19 quote for every company. Accordingly, valuation sections describe appropriate frameworks and evidence to examine. They do not declare a stock cheap or expensive based on an unverified multiple. There are no buy/sell ratings, target prices, or promised returns.

6. Date and correct the work

The source date, publication date, and a market price timestamp are different concepts. The site is a fixed October 19 edition and does not automatically refresh research. Material later revisions should receive a new modified date and an explanation of what changed. See corrections.

Limits

AI-assisted synthesis can misread disclosures or miss context. Source links and conditional wording reduce that risk but cannot eliminate it. This publication is educational commentary; readers remain responsible for independent due diligence.