Day trading
Also called: trading, active trading
Buying and selling within the same day, chasing price movements rather than owning businesses.
Positions held for hours or minutes, aiming to profit from small price twitches rather than from anything the underlying business does.
Over such short periods, price movement is close to random. You are competing against institutions with faster connections, better information, and teams of people whose entire job this is. The people on the other side of your trade are not amateurs.
Meanwhile the platform collects its cut on every transaction, win or lose. That is a guaranteed cost applied to an uncertain outcome, repeated many times a day — which is the same structure as a casino’s edge, arrived at by a different route.
It also looks like a skill, and this is what makes it durable. Winning streaks feel like ability rather than variance, apps are designed to make trading feel like progress, and the people who lost quietly do not post about it.
None of this means nobody profits. It means the arithmetic works against the average participant, and there is no reliable way to know in advance that you are the exception.
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Covered properly in Learn.
This term appears in the glossary of The Quiet Fortune, Volume I.