Why Is a Miner’s Short Futures Position Subject to Margin Calls If the Cryptocurrency Price Rises?
A short futures position is a bet that the price of the underlying asset will fall. If the cryptocurrency price rises, the short position incurs a loss.
Futures contracts require a margin account to be maintained at a certain level, known as the maintenance margin. When the unrealized loss causes the margin balance to fall below this level, the miner receives a margin call, demanding an immediate deposit of additional funds to cover the loss and restore the margin.
Glossar
Calls
Valuation ⎊ Calls represent a contractual right, but not the obligation, to purchase an underlying asset at a predetermined price on or before a specified date, fundamentally differing from a forward commitment through optionality.
Short Futures Position
Exposure ⎊ A short futures position in cryptocurrency derivatives represents the obligation to deliver an underlying asset at a predetermined price on a specified future date, inherently establishing a negative exposure to anticipated price increases.