>>2422993You short when an investment you think is overvalued is going to do bad and you gain money from that loss. To give a more in-depth example let's say that last night you decided to short Civia. You thought Civia was overvalued at $695 so by shorting you've "borrowed" 3 Civia coins from the broker and instantly sold all 3 for $695. When the price fell to $470 you could easily buy all 3 shares back for that price and return the shares to the broker before the time limit was up to net a profit of $675. If Civia mooned to $1k instead and you were running out of time to pay back the broker though you would be forced to pay back $915.
