I understand the concept of call options in general but hoping someone can check if my understanding is correct of how Deribit works:
Picking a random strike price of $6k:
The premium is between $1023 and $1067, which means that the breakeven price of ETH would need to be just over $7k on the option date. Does this contract refer to 1 Ethereum? So if ETH was to go to say $9k on the expiry date then this would result in a net profit of $2k? I'm asking because I believe a stock option contract usually refers to 100 shares rather than a single share.
The downside is that if ETH never gets to $7k then your $1k premium paid is completely lost. The benefit would be that if ETH got to $9k, instead of making $5k on a $4k (125% ROI) investment given the current price of ETH, you make $2k on a $1k investment (200% ROI) with less capital invested.
Once the premium is paid, am I correct in assuming that there are no ongoing maintenance/margin requirements?