Articles
Fifteen explainers on index concentration, mega-cap market value, and how to read a live quote. Each one sits at the URL the old piece used.
How the Magnificent Seven came to dominate the S&P 500The old URL tracked a year when seven stocks did an outsized share of the index's work. The useful question now is what that concentration means at today's prices.NVIDIA's outsized role in the S&P 500's gainsWhen a single stock supplies a third of the index's gain, the index is telling you less about the economy and more about one order book.When one chipmaker added a trillion dollars of market value in a quarterA trillion dollars of market cap in one quarter is a repricing of the future, not a trillion dollars of cash arriving in the building.What a lifetime of iPhone sales means for Apple's stockA lifetime sales total is a monument. The stock is priced on the next few years of profit, not on the monument.Bitcoin, the S&P 500, and gold: how to compare a decade of returnsAnnualized return is the destination. Drawdown is whether anyone stayed on the road.Why more Americans own stocks, and what that does to the marketWhen more households own shares, the market is not a spectator sport. It is a household balance sheet.The AI stocks behind the Nasdaq's 2023 surgeAn index surge labeled AI was a small set of businesses selling picks, shovels, and ads into a capital-spending boom.The year big tech added trillions in stock valueAdding trillions of market value in a year says the starting price was willing to be rewritten. It does not say the next trillion is owed.Microsoft, AI spending, and the long road to a larger market capRound-number market caps are outcomes. The inputs are revenue growth, margin, share count, and the multiple at the end.Tesla's margin slide and the cost of funding the next betA margin cut can be a price war, an investment cycle, or both. The stock only needs you to know which one you are underwriting.How large is the global stock market, and why the 2021 peak still mattersThe world equity market is the opportunity set. A round trillion is a unit, not a forecast you need to trade.Seven US stocks versus an entire national equity marketA group of seven companies outpricing a national market is a statement about listed equity, not about the size of two economies.Are high AI valuations a risk or the price of growth?A high valuation is not a character flaw. It is a forecast you can write down and then argue with.Alphabet's lifetime revenue and what it says about Google's stockTwo trillion dollars of lifetime revenue is proof of a franchise. The multiple is a bet that the franchise keeps its economics.The other side of 2023: large stocks that lost hundreds of billionsA rising index and a $207 billion hole in five large stocks can be the same year. That is what concentration looks like from underneath.
Ratio definitions are in the academy. Screens are on best stock lists.
Questions
Are these the old Stocklytics articles?
They are new explainers at the original addresses. The topics match the pages people still search for. The sentences are written for the live quotes on this site.
Why is there no homepage redirect?
The index is the table of contents. Each card opens the article at its historical URL.