the.com/stock option

The right to buy a slice of a dream later, at today's price.

means A contract giving an employee or investor the right (not obligation) to buy a company's stock at a fixed price within a set window, regardless of what the market price does later.

from 'Stock' traces to Old English 'stocc' (a tree trunk or stump) — the sense drifted from solid wooden base to 'fixed capital stock' of a business by the 1600s-1700s, the idea being a merchant's stock-in-trade, the goods and capital he stood on. 'Option' comes from Latin 'optio,' meaning choice or free choice, from 'optare,' to choose or wish. The financial sense of 'option' as a traded right to buy or sell emerged in 19th-century exchanges; 'stock option' as employee compensation is a 20th-century innovation, popularized especially by tech firms offering paper riches instead of cash.

not a share
you own a choice, not equity, until you exercise
the catch
worthless if the stock price falls below strike
vesting cliff
most start paying out only after year one
expiration
unexercised options usually die 90 days after you leave
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