Build a stock watchlist you can actually review
A watchlist of 300 names is easy to create and difficult to maintain. Start by asking what each entry requires you to check. The useful size depends on the time you can spend and the depth of research you intend to do.
Give each company a reason to stay
Record ticker, full company name, exchange and one research question. Add the next known event and the date of your last review. “Interesting chart” is too broad to tell you what to examine next Tuesday.
A hypothetical entry might read: “ABC, Example Company, verify whether revenue growth reflects volume or an acquisition; earnings date unconfirmed; last reviewed: [date].” The company is invented, but the note contains a task you can complete.
Separate observation from readiness
Use different states for an idea awaiting research, a company under review and an archived entry. Being on a list does not mean that the instrument is suitable to buy.
A consistent TC2000 watchlist configuration makes this separation easier to maintain. Keep the original question visible so a price move does not become a substitute for answering it.
Remove or archive entries when the research question has been answered, the premise has changed or you no longer have time to follow them. Preserve the old notes if you want to evaluate how your selection changed.
Finally, inspect overlap. Ten companies dependent on the same customer or spending cycle may generate ten rows and one economic exposure. Add a short exposure label alongside the sector rather than counting tickers as diversification.