Market capitalization

Market capitalization is share price times shares outstanding, the market's price for the whole company. Index weights in the S&P 500 and Nasdaq 100 come from it, which is how one company could outweigh every listed Indian company in May 2026, and how a ₹42 crore company can trade 720 million shares on a day with no news.

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  • NASDAQNasdaq is the American exchange that began in 1971 as one screen showing every dealer quote side by side, the first…
  • Nasdaq 100The Nasdaq 100 is an index of the hundred largest non-financial companies listed on Nasdaq, weighted by market value…
  • S&P 500The S&P 500 is about five hundred of the largest American companies, weighted by market value, and the number money is…
  • Magnificent 7The Magnificent 7 are Apple, Microsoft, Alphabet, Amazon, Nvidia, Meta and Tesla, seven companies that drove most of…
  • Stock split (US)A stock split divides each share into several, so a 10-for-1 split turns one $1,000 share into ten $100 shares at the…
  • Day trading and the PDT ruleDay trading is opening and closing a position in the same session. The PDT rule is FINRA's pattern day trader rule: a…

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