Short guides on market cap, valuation, returns, planning, and options — how to read P/E, DCF, CAGR, and XIRR, how sectors group companies by industry, when the U.S. market is open, and what the Featured lists — Magnificent 7, AI stocks, and memory stocks — actually measure.
Start with the basics, then open a live ranking. Nothing here is investment advice.
What company size is, how it differs from share price, and what moves it.
Price versus earnings, cash-flow value, and market cap versus the whole business.
Lump-sum annualized growth, money-weighted XIRR, and the total change over the same period.
Dividend reinvestment, compounding, savings targets, and retirement assumptions — and what each leaves out.
How a risk limit becomes a share count, what break-even means after fees, and what a split does to shares and cost.
What a covered call and a cash-secured put pay, and the obligation that comes with the premium.
How companies are grouped by what they do, and how sector market cap is summed.
Fixed research comparisons ranked by market cap, not indexes you can buy.
When the NYSE and Nasdaq are open, and when they close early or for a holiday.
Which companies qualify, how share classes combine, and where the figures come from.