templaedhel

> Lizardman’s Constant is an idea proposed by Scott Alexander that each poll always has about 4% weird answers. In one poll, 4% of Americans said that reptilian people do control our world and, in another 4% answered ‘Yes’ to the question ‘Have you ever been decapitated?’

"A company should be a thing, and people should be able to own a portion of its equity, and the portion that each person owned would be expressed as an arbitrarily precise percentage of the total...The “stock price” would be what we now call the “market cap”: The market would place a value of $X on the company as a whole, and if I wanted to buy another 0.01429% I would pay 0.01429% of $X....

The traditional, 19th-century answer to how many shares a company should have was that stocks should have a normal price, they should cost like $40 to $100...This was so standard that, when Charles Dow created a stock index in 1884, he just averaged the dollar stock prices of a bunch of stocks...because the stocks had normal prices.

There is an argument that high-priced stocks reduce liquidity because traders have less incentive to post quotes. It is good for a stock to trade at a bid/ask spread of a couple of “ticks,” the minimum price increment for trading. If a stock is worth $50 and trades at a bid/ask spread of $49.99/$50.01, a trader who posts a bid to buy at $49.99 will be able to buy from anyone who wants to sell immediately. If it’s worth $500 and trades at $499.90/$500.10, a trader who posts a bid to buy at $499.90 might lose out to a trader who bids $499.91. You can’t reliably earn a “normal” spread by trading the stock, so your incentive to provide liquidity is lower. Nasdaq published a paper arguing this point

At the time of Apple’s last split, in 2014, one popular explanation was that Apple was trying to get into the Dow Jones Industrial Average, which is still price-weighted and so still has an old-fashioned fondness for normal-priced stocks, but that worked and now it’s in the Dow so that’s no reason to split again"