What is auto-deleveraging? When winning gets you closed 
Every leveraged crypto venue has a mechanism that can close your profitable position without asking, and it fires precisely when you are most right. It is the last step in a risk waterfall, it selects victims by a published formula, and it works differently on every architecture.
Here is how it operates and what actually reduces your exposure to it.There is a category of financial risk that traders learn about only at the moment it costs them money, and in crypto derivatives the leading example is auto-deleveraging. The mechanism is simple to state and hard to accept: on a venue where you hold a large, profitable, leveraged position, the exchange may close part or all of that position without your consent, at a price you did not choose, because someone on the other side blew up so badly that the venue cannot cover the shortfall any other way. You did nothing wrong. Your analysis was correct.
Your position is being reduced precisely because it was working. Every major perpetual futures venue, centralized and decentralized alike, has some version of this mechanism, and it is disclosed in their documentation, which almost nobody reads until afterward. This guide explains why the mechanism must exist, where it sits in the sequence of defenses, how venues decide whose positions to cut, how the architectures differ, and what a trader can actually do to reduce exposure to it.
