yes, i do trade on gemini.com and immediately move the cryptoasset out of brokerage into my private wallet once it clears. so any assets on exchange stays usually for a few days instead of indefinite period of time. for wallet, i use exodus and bitcoin. But for deribit obviously can not do it as there is no such thing as independent bitcoin option wallet.(will be nice if there is something like that come out in the future). So I sort of transferred a fraction of bitcoin and just decided to buy December option. Still costed dearly 0.29BTC. I took a chance thinking better do it than not do it.
I can't even begin to imagine where BTC options fall on the risk spectrum. but each to their own, buyer beware.
Got this from them: Dear traders, Yesterday around 14.00 UTC we had liquidation algorithms of portfolio margin users creation a chaos in the 29 December future. This resulted finally in bankruptcies of more than 105 BTC. Further various client accounts had unjust losses due to liquidations as well. We had to halt trading yesterday for a while to fix the issue before we could continue again. We are sorry for the downtime. We solved the issue of the losses by contacting our biggest market makers and traders that have been making profits trading against the malicious algorithm at prices far above the market. We are grateful for their understanding of the incident and for their direct support of our exchange. Further we decided to refill the insurance fund further such that all other traders will remain completely unaffected and no profits will be socialized among other traders in this session at all. The total final loss left for the exchange amounts to around 60 BTC (or USD 235.000 at the time of writing). Please note that all users' funds are safe and we as an exchange can, of course, handle a loss of 60 BTC. The exchange will continue operating as normal. This was our first major incident since we opened doors for trading in the summer of 2016. We will work hard now to improve various liquidation algorithms such that this could never occur again. This might further delay the launch of new products like Ethereum futures and our upcoming Spot Exchange. The insurance fund will also be replenished again with 25 BTC. Best regards, Deribit Team Johan Jansen - CEO Marius Jansen - CMO
Well it looks surprisingly good, your contacts are in BTC but the volume is still low. Too easy for whales to drive you margin position to stops. What I don't like about derivatives trading that when combined with extremely volatility it causes price spikes that nobody with even with careful risk calculation can't sustain.