If a supply of something sells out, there is no more of that thing to buy.
If a shop sells out of something, it sells all its stocks of it, so that there is no longer any left for people to buy.
In the US it is used as “sellout“.
Very simmilar si: sell off: The company is selling off the less profitable parts of its business.
“sell off” means: to sell something quickly and for a low price, usually because you need money
The company will have to sell off assets to avoid bankruptcy.
To sell off means to sell parts of something you own. It may mean selling all of the thing, but may not. “He sold off 10 acres of his land, and now he only has three acres left.” A very literal translation is “quitar vendiendo.”
To sell out is an intransitive verb that usually means to sell until the thing is all gone, but in this context it is a transitive verb that means the sellers left (exited) their positions in the fund by selling. This usage is rather unusual, and I think it is financial jargon.
Examples:
- We sold out of the T-shirts in the first couple of hours.
- They decided to sell out to their competitors.
- That has been proved over and over again with your sellout concerts.
- Somewhat surprisingly, the sellout crowd had to wait for 41 minutes for the home side to convert threat into reward.
- Flashlights were sold out at the store after the power went out.